Decoder for transmitted message activation code.
3 claims: 2 independent, 1 dependent
- 1Patenttivaatimukset 1. Dekooderi useiden vastaanottimien joukkoon kuuluvaan vastaanottimeen lähetetyn akti voi nti koodisignaaleja sisältävän informaation vastaanottamiseksi, jolloin jokaisella mainitulla vastaanottimella on edeltäkäsin määritelty hälytyssekvenssi, tunnettu siitä, että dekooderissa on:elin (107), joka reagoi vastaanotettuun koodattujen signaalien ensimmäiseen joukkoon, ja joka valitsee yhden jakson ainakin ensimmäisestä ja toisesta aikajaksosta, jolloin vastaanotin ilmaisee ja dekoodaa vastaanotetut osoiteella koodatut si gnaali t;ajastuselin (117), joka reagoi mainittuun vai intael imeen (107) ensimmäisen ja toisen aikajakson ajastamiseksi;ja elin {107), joka ragoi mainitun vastaanottimen ilmaistuun ja dekoodattuun osoitteeseen mainitun vastaanottimen saattamiseksi valmiustilaan lisäinformaation vastaanottamiseksi.
- 2Patenttivaatimuksen 1 mukainen vastaanottimen dekooderi , tunnettu siitä, että mainittu vastaanotettujen koodattujen signaalien ensimmäinen joukko sisältää tunnuksen ja invertoidun tunnuksen signaalin, jolloin valintaelin (107) valitsee mainitun ensimmäisen aikajakson vastaanotettujen koodattujen signaalien ensimmäisen joukon perusteella, jossa on tunnus, ja jolloin se valitsee mainitun toisen aikajakson vastaanotettujen koodattujen signaalien ensimmäisen joukon perusteella, jossa on invertoitu tunnus.
- 3Menetelmä koodattujen signaalien dekoodaamiseksi, kun koodatut signaalit sisältävät akti voi ntisignaal eja informaation lähettämiseksi useiden vastaanottimien joukkoon kuuluvaan vastaanottimeen, jolloin jokaisessa vastaanottimessa on ennaltamäärätty hälytyssekvenssi, menetelmän käsittäessä vaiheet, joissa:ilmaistaan ja dekoodataan vastaanotettu koodattujen signaalien ensimmäinen joukko;ja menetelmän ollessa tunnettu siitä, että siinä valitaan yksi jakso ainakin ensimmäisestä ja toisesta aikajaksosta, jolloin vastaanotin mainitun ensimmäisen vastaanotettujen koodattujen signaalien joukon perusteella ilmaisee vastaanotetun osoitteella koodatun signaalin;ilmaistaan ja dekoodataan vastaanotetut osoitesignaalit valitun yhden, mainituista ainakin ensimmäisestä ja toisesta aikajaksosta, jakson aikana;korreloidaan vastaanotettu osoitesignaali edeltä määriteltyyn, mainitussa vastaanottimessa olevaan osoiteinformaatioon;ja kehitetään ohjaussignaaleja, kun mainitut vastaanotetut osoitteella koodatut signaalit vastaavat mainittua edeltä määriteltyä osoiteinformaatiota.
Independent claims3
259 paragraphs in 29 sections, as filed
Decoder and method for receiving the activation code of the transmitted information
Previously known messaging systems generally operate by detecting coded signals selected to correspond to the addresses of private receivers. Some known digital coding systems operate by causing a plurality of receivers to be asynchronously searched for the occurrence of a digital word based on timing, which determines whether the receivers must remain switched on to detect a possible message. This serves as a pair of ton saving mode for the receiver set.
A limitation of such known systems is that they do not include a practical method for arranging a group call on the transmitter side or in the paging center so that an arbitrary number of pagers can be activated simultaneously. Another limitation of the prior art occurs in beep and voice message systems in which the paging receiver generates an alarm time after which a voice message can be received. Whenever a private paging receiver is called by a voice message, the alarm time interval during which the user is warned so that the user can receive the next voice message is wasted for the system because no other information can be sent during this time interval. For example, if the address of the second beep and voice messaging device were transmitted during the alarm time of the first indicated beep and voice paging device, at the end of the second assigned beep and
5 2 4 3
One feature of the present invention comprises placing an activation code signal in the transmitted messaging system so that all receivers that have received the correct address remain in standby mode until an activation code signal is detected, which then causes simultaneous activation of the operating routine. Although a particular embodiment of the invention has been implemented in connection with a digital paging system, it will be apparent to those skilled in the art that the invention may have many other uses and forms. In addition, the use of such an activation signal allows messages to be interleaved within the alarm time of the message in the case of a specifically assigned beep and voice message pager, and ensures that the second assigned beeper and voice message pager is not activated until it receives an activation code signal after its address. Thus, there is no possibility that the second assigned beep and voice message pager will start operating during the time period in which the first pager receives a voice message of varying length. Another advantage of such a system is that it also allows different types of messages, which may include a mere beep, a data message and an audible and voice message, to be interleaved into the same signaling system, which substantially increases the flexibility of the transmitted messaging system.
It is an object of the present invention to provide an improved decoder for transmitted encoded information.
It is a further object of the invention to provide a decoder which, in response to the detection of deactivation control signals, terminates the processing of the transmitted coded information.
The invention relates to a decoder for receiving coded information signals transmitted to a receiver included in a plurality of receivers, and the decoder is characterized in that it includes means responsive to the received coded signals identifying the address of a private receiver included in said plurality of receivers, and means responsive to detecting and decoding the address of the private pager to determine a time slot, and means responsive to said predetermined time window for detecting and decoding the activation code signals to allow said assigned receiver to respond.
Figures 1 AG are timing diagrams for the coded message system of the present invention.
Figure 2 is a functional block diagram of an apparatus embodiment of the present invention.
Fig. 3 is a state diagram showing the operations of the diagram of Fig. 2.
Figure 4 is a functional block diagram of an apparatus embodiment of the present invention.
Figure 5 is a flow diagram of an apparatus embodiment of the present invention.
Fig. 1A shows a timing diagram of the use of the activation code signal in connection with the assignment of the receiver. Normally, receivers detect their address and respond immediately by performing an action corresponding to that detected address. It is very advantageous to use in the prior art a conventional additional activation code signal which determines the moment when the receiver reacts to the detection of its address. The addition of an activation control signal thus allows the transmitter to determine precisely because the assigned receiver is activated.
As can be seen more clearly from Figure 1B, the receivers can be grouped by sequentially assigning a plurality of addresses and an activation code signal to the group after an arbitrary number of addresses selected. The advantage of this is that when receiving the activation code, the members of the arbitrarily selected receiver group all react simultaneously. Thus, it can be seen that the exchange operator at the transmission site can form an arbitrary grouping of receivers and then cause them to be activated simultaneously. This can have a clear advantage not only in messaging systems but also in the simultaneous control of several functions 75243 in a remote location.
Although it will be appreciated that many types and formats of signal coding may be used in the present invention, the preferred embodiment uses a digital signal system called a Golay sequence code. The Golay Sequence Code (GSC) is a selective paging policy based in large part on the current binary Golay format. The Golay code is fully explained in Selective Signaling for Portable Applications, Leonard E. Nelson, 28th IEEE Vehicular Technology Conference, Denver, Colorado, March 22-24, 1978. The Golay sequence code is a binary NRZ signal format that has been significantly modified from the previous format to allow interleaved searches with a beep and a data message, as well as searches with a beep and speech. include searches and now also improved battery saving performance.
GSC is an asynchronous search format that allows searches to be sent individually or in groups. The maximum messaging capacity for searches with an audible signal and an audible signal and a data message is obtained in multicast mode, while a separate paging format is preferred for searches with an audible signal and a voice message.
The single search address format includes an ID, a control word, an address code, and in the case of a voice message search, an activation code (AC). The purpose of the token is to divide the pagers included in the system into groups to extend battery life and to unambiguously distinguish GSC transmissions from other encoding formats to allow channel sharing. without compromising battery life or the reliability of error calls. The control word delimits the identifier and provides timing information for group decoding. The address uniquely identifies each paging device and the activation code AC is used to control the voice paging circuits of the paging device in voice message calls. The group mode allows the address string to be sent after the control word.
A data message consists of an address followed by one or more blocks of data. Data messages can be sent individually in a single call format or interleaved with address-only searches in a multicast format. The address and data blocks are exactly the same length. The address information is constructed from words selected from the Golay (23, 12) cyclic code, and the data information is encoded using the (15, 7) BCH code. Address information is transmitted at 300 bit / s and data information is transmitted at 600 bit / s.
In addition to enabling the battery-saving operation of pagers, the polarity of the symbol indicates whether the transmission format is a single call or a group call. For example, when the identifier words are transmitted using another specified bit polarity, this is an indication of the single call format, and if the identifier bits are inverted, this is an indication of the group call format.
The control word, the activation code and the address code all use a two-word format consisting of 28 introductory bits followed by two (23, 12) codewords. The introduction is a 1.0 bit alternation sequence transmitted at a rate of 600 bit / s. The two Golay codewords (word 1 and word 2) are separated by a 1/2 bit spacing. The polarity of the 1/2 bit interval must be opposite to the first bit of the second word, and the first bit of the preamble must have the same polarity as the first bit of the first word. The control word and activation code are predetermined in the preferred system. The words 2 of the control word and the activation code are complements of the fixed words.
The address format is similar to the control word and activation code format in terms of number of bits, preamble rules, and 1/2 bit spacing. Address word 2 can be selected as any (23, 12) code set word except for combinations of all zeros and all ones. Thus, there are 4094 possible second words consisting of 12 information bits and 11 parity bits. The first words are selected from a subset of the 100 words of the Golay Code. To generate binary bit diagrams (23, 12) for the Golay code, the decimal form of the codeword is converted to binary. This binary format is rewritten with the least significant bit on the left.
Beep-only searches are pager addresses that do not involve a voice message. Although the use of a single call function is possible, the group mode is the most preferred address transmission method for searches that include only a beep and a beep and a data message. The activation code is not usually used for searches with an audible signal only, but it is possible to use it, and the extended group mode is especially useful in times of heavy traffic.
The multicast format starts with an inverted ID followed by a control word and up to 16 paging addresses or data blocks. Incoming search requests should be grouped by ID and sent at a time considered by the search center manufacturer and this customer, or in a traffic situation.
Sometimes it may be desirable to send more than 16 addresses within a single ID group. The extended group format is intended for these situations. The extended group format extends the group format 16 multiple times without requiring the ID to be retransmitted. To accomplish this expansion, the control panel simply needs to send a control word. In theory, the group could be expanded arbitrarily, however, each extension causes a slight deterioration in the sensitivity of the paging device.
The GSC format allows data message searches to be interleaved with searches that contain only a beep or a beep and a voice message. The data message retrieval includes the address of the pager, followed by one or more blocks of data. The data block is as long as the address block and can be freely placed in place of addresses in group mode. The single search format can also be used by placing a data message after the search device address. Data information is transmitted at a rate of 600 bit / s to minimize the likelihood of addresses and data mixing errors.
Figure 1C shows a timing diagram of a preferred embodiment of the invention for a normal voice message paging format of a normal message routine. It can be seen from Figure 1C that after the identification code signal, a control word and the address of the private pager are transmitted. In a manner generally known for paging operations, the address is followed by an activation code, and most preferably an activation code upon receipt and detection of the individually assigned paging device initiates a two-second alert action to alert the user of the next voice message. In the preferred embodiment, it is shown to add a deactivation control word to the end of a voice message of varying length, in which the presence of the activation control word is detected a second time as the deactivation word and consequently the voice channel is attenuated.
Fig. ID is a signal timing diagram showing some advantages that can be achieved by using an activation control signal for control performed by a group-based group call center. It can be seen from Figure ID that, in the preferred embodiment, a control word and a sequence of up to 10 different addresses for different pagers are transmitted after the in-identified identification signal. The inversion of the identifier is used in the preferred embodiment to indicate the existence of more than one address, so that the paging device continues the reception operation so that it examines more than one address.
This operation will be explained in more detail in connection with the description of the device of the preferred embodiment and its equivalent hardware implementation.
Although each of the pagers has found its correct address, none of them has triggered an alarm action because no activation code has been received. An activation signal is sent at the end of the tenth address, which causes all ten selected pagers to be activated simultaneously. In a system using a beep and a voice message, in the case of a search containing a voice message, all ten pagers simultaneously start their alarm time of about two seconds to warn all ten different users of the next voice message. At the end of the alarm time, all ten assigned pagers receive the sent voice message simultaneously. At the end of a voice message of varying length, the second occurrence of the activation code is interpreted in the preferred embodiment as a deactivation control signal that provides voice channel attenuation in all ten assigned pagers and allows the system to immediately send new addresses and other paging information. It can thus be seen that the use of an activation control signal makes it possible for the central control of an arbitrary pager group to achieve simultaneous operation. In addition, the message can be sent at the headquarters to the pagers arbitrarily selected as a group at the same time.
Fig. IE is a message timing diagram showing the advantages of using an activation code in utilizing the alarm time of a normally assigned and activated paging device that is not normally utilized to increase the information transmission capacity of a messaging system by performing a second paging without activating another paging device. It can be seen from Fig. IE successively that the identification signal is followed by a conventional control word, address 1 and an activation code for the first paging device. Upon receiving the activation code at address 1, the pager starts an alarm time of about two seconds to alert the pager user of the next voice message. Normally, in such systems using an audible signal and a voice message, or other similar systems, the alarm time delay cannot be exploited. Thus, valuable transmission75243 time is lost for two seconds during which other information could be transmitted. As shown in Fig. IE, during the two-second alarm time, an ID control word and a second address for the second pager can be sent without affecting the operation of the first pager or the second pager. The transmitter then issues a voice message of varying length at the end of the second address for the first paging, which is received by the only assigned and activated paging device number 1.
At the end of the voice message number 1 of varying length, the activation code detected a second time serves as a deactivation code for the assigned and activated pager 1. This also corresponds to the activation code for the second assigned but not yet activated paging device, so the second transmission of the activation code will surely stop the operation of the first assigned and activated paging device and form the normal operation sequence of the second assigned and now activated paging device.
In normal operation, there is a two-second address search time for address 2, during which a third ID, a control word and a third address can be sent for the correct assignment of the third pager without activating it. As before, the second address pager voice message begins at the end of the third address and, as in the first pager voice message, is terminated by a second occurrence of an activation code which the assigned and activated pager 2 interprets as a deactivation control word when the assigned but not yet activated pager 3 It can thus be seen from Figure IE that the overall message information system can be compact in structure so that the normal two-second alarm time that cannot normally be used by the transmitter system operator is fully utilized, thus substantially increasing the system's communication capability.
Figure 1F shows a message timing diagram for another activation code usage conversion mode, which may be referred to as a central group call mode. When the chain assignment operation of ten or more pagers is shown in Fig. ID, due to the structure of the code signal set of the preferred embodiment, it was necessary to use inversion of the identifier to cause the system to transition to a mode where more than one address could be decoded. This necessarily means that the assigned paging devices must all belong to the same group of sets so that they can respond to the same ID. To illustrate the much greater flexibility of an information system using an activation control word, Figure 1F shows that private paging devices that can form a group do not need to be connected to each other so that they have a common identifier.
Figure 1F shows that the transmitter may provide an identifier 1 followed by a control word and an address 1 followed by an identifier 2, a control word and an address 2 followed by an identifier 3, a control word and a third address. The sequence can be completely arbitrary and its length depends on how long the system is set to continue operation and search for an activation code. In this case, the transmitter emits an activation code signal which simultaneously activates all three assigned but inactivated pagers, which may belong to three completely arbitrary groupings of a possible set of receivers. At the end of the activation code transmission, all three assigned paging receivers go into alarm operation, and at the end of the alarm operation, all three paging devices respond to the transmitted voice message, which is terminated by a second occurrence of the activation code generating a deactivation signal to the three assigned and activated paging devices.
There are many other combination variations on the use of the activation control signal and such an information system. Fig. 1G shows a message timing diagram mainly for a mixed system 75243 operation in which an identification signal is followed by a control word, three normal addresses, data address, data information and voice message address for a fifth receiver, which together provide three voice-only pagers, one data paging address but one voice message. In the preferred embodiment, the activation code is normally used for the operation of the audible signal only, but this can be easily changed. The voice message address of the fifth paging device is then followed by an activation code which causes the voice paging device to switch to alarm operation, so that the user of the paging device can be prepared to receive the voice message. It should be noted that upon receipt of the activation code, the users of the first three paging devices providing only an audible signal have received an acknowledgment of the search, and the data message retrieval information and subsequent data information, which may also be encoded in such systems, have already been received.
During the alarm time of the paging device to which the voice message is addressed, nine other beep-only addresses may be sent, followed in the system of the preferred embodiment by a short Interval of less than one equivalent word length. This is then followed by a voice message of varying length. A voice message of varying length is only given to the fifth assigned voice message pager, which has been activated by the first reception of the activation code. At the end of the voice message of varying length, the second activation code terminates the operation of the voice channel of the fifth activated voice message pager and also causes the activation of nine other pager-only assigned pagers, so that no time is wasted in the system.
It is clear to those skilled in this type of data information system that the audible operation alone provides an alarm signal to the pager user for a fixed timed period, so for paging-only searches it is not necessary to send a deactivation code to terminate the message because the receiver itself generates an alarm. Furthermore, it is found that providing the address of the paging device providing the data message and then the data information and then the activation code first causes the indication and the detection of the data message and then the activation of the paging device to display the detected message. It will be apparent to those skilled in the art that there are many variations in the use of the activation code that substantially increase the information throughput of such information transmission systems, especially for interleaving different types of messages and activating previously assigned receiver units simultaneously. With this simultaneous activation, operations can be made to occur simultaneously at distant locations, as well as the activation code used in connection with selectively and sequentially assigned pagers can cause temporally sequential operations to occur at remote locations.
Figure 2 shows a diagram of a decoder circuit for a paging device that receives and decodes an activation word according to the invention. The receiver 101 (most preferably the Motorola BPR 2000) receives the transmitted signal from the remote transmitter and processes this signal into a linear audio frequency output and a limited audio frequency output, denoted in Figure 2 as output A and output D, respectively. The limited audio frequency signal provided by the receiver 101 is a digital signal input to the echo detection circuit 105. The echo detection circuit 105 is a non-asynchronous clock-controlled digital word sequence detector, such as that disclosed in U.S. Patent 3,855,576.
When the receiver 101 receives the limited audio frequency signal (digital signal), the signal is input to the echo detection circuit 105 and correlated with the stored address in the echo detection circuit. The stored address is input to the echo detection 75243 circuit 105 from the code stitch unit 109. The code stitch unit 109 is an expanded version of the code stitch unit 36 of the aforementioned U.S. Patent 3,855,576. More specifically, the code stitch unit is 12 x 6 PROM. The timing unit 111 provides basic timing to the control logic 107 and the echo detection circuit 105. The selector circuit 103 outputs either a linear audio signal from the output A of the receiver 101 or a 1.7 kHz signal from the timing unit 111. The 1.7 kHz frequency from the timing unit 111 generates an audible signal 113 and loudspeaker 115. The output lines from the control logic 107 control the selector 103. The output signal E of the control logic 107 controls the operation of the amplifier 113.
The control logic 107 loads the relevant durations into the programmable timer 117, which provide the maximum duration for certain steps explained in connection with FIG.
The echo detection circuit 105 outputs a detection signal to the output AB or AB when the echo detection circuit 105 correlates with the received limited audio frequency signal and the stored address code of the pager. The output of the echo detection circuit 105 detects both the transmitted address and the transmitted inverted address. As shown in connection with Figure 3, the inverted address indicates to the decoder circuits and in particular to the control logic 107 the execution of the group call operation. The table related to Fig. 2 shows four address lines Αθ, A ^,, A ^, which are fed to the code point unit 109. Two of the address lines (Αθ, Ap come from the echo detection circuit 105. The first of the tables related to Fig. 2 shows possible combinations of states for lines Αθ and A ^.
Each message sent, which can be an ID, a pager address, or a control word, is sent as a block divided into two words, which in turn are divided into word halves. To read the entire block to the echo detection circuit 105 for correlation with the limited audio frequency signal received in series from the receiver 101, the echo detection circuit 105 must control the output of the entire block from the code stitch unit 109 via outputs Αθ and A 1.
5 2 4 3 shows from the first table, the echo detection circuit 105 reads half a word from the code stitch unit one at a time. The traffic between the echo detection circuit 105 and the code plug unit 109 is more fully described in U.S. Patent 3,855,576.
The outputs A2 and A2 of the control logic 107 determine which code block the echo detection circuit 105 reads.
Figure 3 shows a state diagram for a paging device with the decoder circuit shown in Figure 2. The decoder is started from the off state (state O) and performs its initial setting to state 1. In state 109, the control logic 107 gives the code plug unit 109 the binary code of the ID address. The echo detection circuit 105 reads the entire binary block of the paging device ID from the code plug unit 109. The echo detection circuit 105 correlates the limited audio frequency signal received from the receiver 101. The circuit gives the correlation result for lines AB and ÄB.
The control logic 107 provides a signal from its output R to the input controlling the operation of the receiver 101 to control the receiver as it searches for the paging device ID. The control logic 107 schedules the operation control of the receiver 101 by means of an internal timing period derived from the clock 111. The receiver shutdown performed by the output R of the control logic 107 is shown as state 2 in Fig. 3. The decoder circuit alternates between modes 1 and 2 until the limited audio frequency signal input to the echo detection circuit 105 correlates with the stored code block of the echo detection circuit 105. This mode of operation is commonly known as battery saving operation.
The control logic 107 keeps the amplifier 113 in the inhibit state both in the decoder state 1 and in the state 2 state. When transitioning from state 1 to state 2, the control logic 107 loads the battery saving time into the programmable counter 117. The counter 117 counts this time and returns the decoder to state 1. If the identifier is detected while the receiver 101 is controlled, either state 3 or state 8 is entered. search time.
The echo detection circuit 105 can detect both the paging device ID binary code and the inverted binary code. If the echo detection circuit 105 correlates the non-inverted symbol, then the control logic 107 receives the detection signal at its input line A. If the echo detection circuit 105 correlates the inverted symbol, then the control logic 107 receives the input signal D at its input. From these two different types of identifiers, the control logic 107 can deduce whether the sent message is a group call or an individual paging. The inverted ID is an expression of a group call, while the non-inverted ID indicates an individual call. If the echo detection circuit 105 receives a non-inverted identifier, state 1 is switched to state 3. If the echo detection circuit 105 receives an inverted identifier, state 1 is switched to state 8. The group call is processed later after processing the transition from state 1 to state 3.
In state 3, the control logic keeps the receiver 101 running at all times. The control logic 107 outputs signals A2 and A2, which instruct the code plug unit 109 to provide a control word binary code. The control logic 107 keeps the amplifier 113 in the inhibit state. The echo detection circuit 105 queries the code plug unit 109 for the entire binary block of the control word and performs a correlation between the control word and the limited audio frequency signal received from the receiver 101. The control logic 107 waits for a detection signal to input A from the echo detection circuit 105.
Since amplifier 113 is not activated, the state of selector 103 can be arbitrary. If the echo detection circuit 105 never correlates the control word, the programmable timer 117 performs a timeout and the control logic 107 and the rest of the decoder returns to state 1. When returning to state 1, the programmable counter 117 is reloaded with the symbol search duration. This must be done whenever the decoder returns to mode 1. In each of the following states, a possible alternative is a return to state 1, as can be seen from Figure 3. The transition back to state 1 is not discussed in detail for each state because all cases are identical or nearly similar.
When the echo detection circuit 105 provides a reliable control signal correlation, a detection signal is applied from the line AB of the echo detection circuit 105 to the input A of the control logic 107. This causes the decoder to switch from state 3 to state 4. During this transition, the programmable counter 117 is loaded with decoder address block search. The control logic 107 provides signals A 1 and A 2 which control the code stitch unit 109 to provide a binary block of paging address. The echo detection circuit 105 communicates with the code plug unit 109 as described above (also more fully described in U.S. Patent 3,855,576). The transition from state 4 can take place in two ways. If the echo detection circuit 105 does not correlate the paging device address, the programmable timer 117 performs a timeout and the decoder returns to state 1.
If the echo detection circuit 105 correlates the paging device address, an detection signal is sent from the output AB of the echo detection circuit to the input of the control logic 107 A. The control logic 107 loads into a programmable timer 117 a maximum duration for the control word search performed by the decoder.
After the echo detection circuit 105 has correlated the paging device address, the decoder switches from state 4 to state 5. The outputs A and A of the control logic instruct the code stitch unit 109 to issue a code word block. In state 5, the echo detection circuit 105 searches for a correlation between the stored codeword and the limited audio frequency input. The control logic 107 waits for a correlation signal to its input A. There are again two transition states from state 5. If the echo detection circuit does not receive the control word, the control timer 117 performs a timeout and the decoder returns to state 1. If the echo detection circuit 105 detects the control word, the decoder enters state 6. During the transition, the control logic 107 loads the alarm tone duration into the programmable counter 117.
In state 6, the control logic 107 controls the input B of the selector 103, which allows the 1.7 kHz signal to pass through the selector 103 to the amplifier 113. The control logic 107 controls the operation of the amplifier 113, which causes the loudspeaker 115 to emit an audible signal. During the state 6 alarm tone period, control logic 107 blocks inputs A and D. The states of the echo detection circuit 105 and the code plug unit 109 are thus arbitrary. The alarm tone time ends at the timeout of the programmable timer 117. There is only one transition possibility from state 6, i.e. the timeout of the programmable timer 117. From state 6, state 7 is entered. During the transition, the duration timer 117 is reloaded. This duration corresponds to the maximum duration of a voice message.
In state 7, the control logic 107 activates the input of selector 103A to prepare the reception of a voice message from the linear audio frequency output of receiver 101. Amplifier 113 is controlled to operate as it was in state 6. Input A of control logic 107 is blocked as in state 6. The states of the echo detection circuit 105 and the code plug unit 109 are indeterminate, respectively. From state 7, state 1 is entered. The transition occurs when the programmable timer 117 times out the duration of the voice message.
Let us return from state 1 to state 8. The group paging operation of the paging device begins when the decoder searches for an identifier in state 1 as previously described. In order for the decoder to enter state 8, the echo detection circuit 105 must correlate the inverted identifier at the input of its limited audio frequency signal. When a correlation occurs and an inverted identifier is detected, the transition from state 1 to state 8 occurs in the same manner as from state 1 to state 3. The transition from state 8 to state 9 corresponds to the transition from state 3 to state 4.
In state 9, the retrieval time loaded into the programmable counter 117 is longer in duration. The reason for the longer duration is that the decoder has to look up its own address among the transmitted address group. Because the addresses are sent sequentially, the address of a particular person's pager can be sent last in the group, thus requiring a longer paging time than in a single paging operation (mode 4).
The transition from state 9 to state 10 corresponds to the transition from state 4 to state 5. State 18 is the same as state 5. The transition from state 10 to state 11 corresponds to the transition from state 5 to state 6. State 11 is equal to state 6 and the transition from state 11 to state 12 corresponds to the transition from state 6 to state 6. 7. State 12 is the same as state 7 and the transition from state 12 to state 1 corresponds to the transition from state 7 to state 1.
Table I on the next page is a table of time sequence logic of a PLA circuit including control logic 107 according to the invention.
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<td>them</td><td>The</td><td>X</td><td>rH</td><td>rH</td><td>rH</td><td>B</td><td>X</td><td>rH</td><td>rH rH</td>
H HO OOH H o O OOH HO OO
H OO HOHHOO OOO OH HO
H OO OOO OOH HÖH HH HO
0) m MQ
OOO O OO OOO OOO OOO oo oo dP
G
I ω o
Q <
<td>O o</td><td>The</td><td>The</td><td>rH rH</td><td>The</td><td>The</td><td>The</td><td>Γ Γ-H rH</td><td>The</td><td>oo</td><td>rH rH</td><td>oo</td>
<td>oo</td><td>The</td><td>The</td><td>oo</td><td>rH</td><td>B</td><td>rH</td><td>rH rH rH</td><td>The</td><td>oo</td><td>oo</td><td>ι-H rH</td>
<td>oo</td><td>The</td><td>The</td><td>oo</td><td>The</td><td>The</td><td>THE</td><td>OOO</td><td>B</td><td>rH rH</td><td>rH rH</td><td>HH</td>
<td>oo</td><td>The</td><td>The</td><td>oo</td><td>The</td><td>The</td><td>The</td><td>OOO</td><td>The</td><td>oo</td><td>oo</td><td>O o</td>
OHX x OH OHX O h X OHX OH OH
OOO H xx XXX XXX XXX XX XX
OOH o XX OOH OOH OOH XX XX + j
Table 1 (continued). logic table
<img file="FI75243B_D0002.tif" />
CM
OXX HXX OXX XX XX
OXX H xx OXX XX XX
OOO OOO OOO ι-H iH HO
XXX XXX XXX OX ι-HX
1—1 Γ-H «-HI — 1H rH rHi-HX OH rl H (OQ rH • H -P
CM
Q
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3
S • S • 6 £ ά<sup>1</sup>
CM
O rH OOOO IH HOO OH HO
HOO OOO OOH HH HO
HOO OOO OOO oo oo
OOH HOH HÖH HH HO
HHH OOO HHH OO HH
HHH OOO OOO HHHH
HHH OOO OOO oo oo
OOO ι — IH ι — 1 HHHH '—I <sup>1</sup>-THEM
OH x OH x OH x OH OH
Sz<sup>4</sup> '• m *<sup>4</sup> Sz<sup>4</sup> Κζ<sup>4</sup> Sz · Sz<sup>4</sup> Sz · S> Sz<sup>4</sup> Sz<sup>4</sup> Sz · rS zm rM z * S rS zm <S rS rS rS
OOH OOH OOH XX XX
7524 3
Figure 4 shows a receiver in an apparatus embodiment of the present invention. Receiver 200 receives the transmitted signal through the antenna and provides a demodulated audio frequency signal to audio frequency amplifier 202. Audio frequency amplifier 202 is coupled to loudspeaker 204. Receiver 200 is provided with a second output to microprocessor 206, which in a preferred embodiment is a 146805 microprocessor. This second connection from the receiver 200 to the microprocessor 206 is a limited audio frequency signal used in correlation and decoding. The various outputs of the microprocessor control the audio frequency amplifier 202 and are labeled alarm, alarm control, and audio frequency control. The read only memory 208 provides a memory space for the microprocessor 206 hardware operation. The read only memory 210, which is assigned as a code stitch unit, provides address information to the private receiver. The microprocessor 206 is connected and provides signals to the auxiliary circuits 212, which in turn control the switching of the stabilized B + and B + signals to the receiver 200.
Figure 5 shows a flow chart for the microprocessor hardware operation shown in Figure 4. The operation of the decoder of the present invention begins with the detection of start-up, which occurs when the receiver is initially switched on.
During the start-up and initialization operations, the microprocessor is prepared for the decoding operation. This manufacturing process includes, as part of activating the audible alarm until it is reset by a timeout, and in the case of audible and voice message operation, the audio frequency channel is further activated until it is reset.
After the initial setup, the microprocessor is ready to receive information from the receiver and decode the received signals. In the preferred embodiment, these signals are digitally encoded words in a particular form of Golay sequence code as previously described.
The correlation of the symbol indicates the presence of the selected symbol and is used to achieve battery saving. If no ID is detected, the pager enters the battery saving mode, where the receiving unit is in sleep mode for a specified period of time. The receiver then re-engages to asynchronously correlate the signals again to determine the presence of the symbol. If an identifier or inverted identifier signal is detected, the next step is to decode the presence of the control word signal.
Detection of the identification signal indicates that the paging device must examine one address, while an inverted identification signal indicates that the paging device must remain operational for 16 addresses, which constitutes a group operation mode in the preferred embodiment. If the control word is not detected, the paging device returns to the operation correlating the occurrence of the symbol in both cases.
When an identification signal is present, the receiver correlates that single address and determines whether a search has been detected or not. In this context, detecting the search means that the address of the correlator corresponds to the address in the address code stitch unit.
If the address is not in the plug-in unit, the operation returns to ID correlation.
In the case of an inverted identifier, if none of the addresses in group 16 match the address in the address code memory of the receiver, the operation returns to the correlation of the control word. In this case, since the device is already in group mode, another control word can be used to indicate the continuation of the group.
If the control word is not detected, the operation of the program returns to the correlation of the symbol.
If a search is detected for the presence of a corresponding address as one of the possible addresses in group 16, then the decision process depends on whether the sent message contains an audible signal and a voice message or a data message or a mere audible signal.
If the message contains only an audible signal and the address is detected, the alarm action can be triggered and when the alarm is timed or reset, the paging receiver operation is reset to ID correlation. Activation and deactivation code signals are most utilized in the present decoder tone and voice message operation.
Although the feature is not included in the preferred decoder, in the case where data is detected as shown in the diagram by dashed lines, the data decoding operation is started by querying whether the data stream has ended. If no more data is received, the data decoding operation is switched back so that the device can then perform the correlation of the identifier.
In the beep and voice message mode, the search corresponding to the decoding of the correct address when detected is the next step is to correlate the activation codeword and then a decision is made as to whether or not the activation codeword has actually been found. If the activation code is not found within the specified timeout period, then control is returned to ID correlation. In the preferred embodiment, the timeout period can be determined arbitrarily depending on the maximum number of aggregated addresses in the messaging system. If an activation code is detected, then the paging device switches to the relevant alarm routine, which is interrupted timed after two seconds, at which point the voice channel is activated so that the voice message is heard.
When the receiver is in this mode of operation, the audio channel is open, the decoder performs correlation of the deactivation codeword to determine it, because the audio channel must be closed. If no deactivation code is detected, the open audio channel is closed after a fixed timeout period. After attenuating the audio channel, the decoder returns to the correlation of the symbol.
Known receivers that automatically close the audio channel have used the detection of the presence or absence of a carrier signal to determine because the audio channel must be closed.
The advantage of the deactivation code word is that it only affects pagers that are correctly assigned and have received the message. The audio channel can then be closed in a suitable manner not only to prevent annoying noise but also to allow a period of time not used by the voice message to be used for other assignment functions of the system. Private messages can be arbitrarily long when the system returns to normal operation, where new addresses are added after previous voice messages terminated by the deactivation code.
Table 2 shows, in hexadecimal format, the hardware format of the entire program code snippet corresponding to the language suitable for the microprocessor shown in Figure 4. Loading this code into the relevant ROM circuit provides the operation shown in the flow chart of Figure 5.
Table 2
<td> 4800</td><td> 93</td><td>3s</td><td> 00</td><td>3F</td><td> 04</td><td>3F</td><td> 01</td><td>A6</td><td> 6?</td><td>B7</td><td> 05</td><td> 02</td><td> 00</td><td>5e</td><td>A6</td><td>CC</td>
<td> 4810</td><td> 37</td><td> 04</td><td>A6</td><td> 55</td><td>FLAT</td><td> 10</td><td>F7</td><td>5C</td><td>A3</td><td> 90</td><td> 26</td><td>FA</td><td>5a</td><td>Fl</td><td> 25</td><td>fT</td>
<td> 4920</td><td>A3</td><td> 10</td><td> 26</td><td>F8</td><td> 43</td><td> 23</td><td>EF</td><td> 27</td><td> 03</td><td>4F</td><td> 20</td><td>SHE</td><td> 16</td><td> 00</td><td>AE</td><td>7F</td>
<td> 4830</td><td>9C</td><td> 15</td><td> 00</td><td>A6</td><td> 08</td><td> 03</td><td> 00</td><td>FD</td><td> 01</td><td> 00</td><td> 11</td><td> 09</td><td> 00</td><td> 00</td><td> 76</td><td> 14</td>
<td> 4840</td><td> 00</td><td> 02</td><td> 00</td><td>FD</td><td> 15</td><td> 00</td><td>4A</td><td> 25</td><td>EC</td><td>5a</td><td> 20</td><td>E7</td><td> 14</td><td> 00</td><td> 02</td><td> 00</td>
<td> 4850</td><td>FD</td><td> 15</td><td> 00</td><td>5C</td><td>FC</td><td>AE</td><td> 08</td><td> 03</td><td> 00</td><td>FD</td><td> 17</td><td> 00</td><td> 46</td><td> 24</td><td> 02</td><td> 16</td>
<td> 4850</td><td> 00</td><td> 14</td><td> 00</td><td> 02</td><td> 00</td><td>FD</td><td> 15</td><td> 00</td><td>5a</td><td> 26</td><td>SC</td><td> 81</td><td>3F</td><td> 11</td><td> 08</td><td> 00</td>
<td> 4870</td><td> 09</td><td> 10</td><td> 11</td><td>3F</td><td> 23</td><td>0D</td><td> 00</td><td> 02</td><td>IE</td><td> 23</td><td>ID</td><td> 00</td><td>1C</td><td> 04</td><td>CD</td><td>IE</td>
<td> 4880</td><td>3C</td><td>A6</td><td> 03</td><td>B7</td><td> 01</td><td>ID</td><td> 01</td><td>ID</td><td> 01</td><td>A6</td><td> 04</td><td>B7</td><td> 01</td><td>ID</td><td> 01.</td><td>ID</td>
<td> 4390</td><td> 01</td><td>3F</td><td> 01</td><td>A6</td><td>0'S</td><td>B7</td><td> 01</td><td>ID</td><td> 01</td><td>ID</td><td> 01</td><td> 36</td><td> 00</td><td>B7</td><td> 10</td><td>ID</td>
<td>48A0</td><td> 10</td><td> 04</td><td> 10</td><td> 05</td><td> 02</td><td> 10</td><td> 02</td><td>1C</td><td> 10</td><td>1A</td><td> 10</td><td>5F</td><td>A6</td><td> 01</td><td>AD</td><td> 29</td>
<td>48B0</td><td>A6</td><td> 02</td><td>AD</td><td> 25</td><td>A6</td><td> 05</td><td>AD</td><td> 21</td><td>A6</td><td> 06</td><td>AD</td><td>ID</td><td>A6</td><td> 09</td><td>AD</td><td> 19</td>
<td>49C0</td><td>FLAT</td><td>0A</td><td>AD</td><td> 15</td><td>A6</td><td>0D</td><td>B7</td><td> 01</td><td>ID</td><td> 01</td><td>ID</td><td> 01</td><td>BS</td><td> 00</td><td> 46</td><td> 36</td>
<td>4SD0</td><td> 51</td><td> 34</td><td> 51</td><td>A4</td><td>0F</td><td>B7</td><td> 53</td><td> 20</td><td>ID</td><td>B7</td><td> 01</td><td>ID</td><td> 01</td><td>A6</td><td> 02</td><td>B7</td>
<td>48 I0</td><td> 13</td><td> 36</td><td> 00</td><td> 46</td><td> 36</td><td> 51</td><td> 46</td><td> 25</td><td> 02</td><td>IB</td><td>ie</td><td> 66</td><td> 55</td><td> 46</td><td> 66</td><td> 55</td>
<td>48C0</td><td>5C</td><td>3A</td><td> 13</td><td> 26</td><td>Fl</td><td> 81</td><td>ID</td><td> 11</td><td>B6</td><td> 51</td><td> 44</td><td> 24</td><td> 02</td><td>1C</td><td> 11</td><td> 97</td>
<td> 4900</td><td> 36</td><td>IF</td><td> 73</td><td>B7</td><td>2E</td><td> 54</td><td>D6</td><td>IT</td><td>A5</td><td> 25</td><td> 04</td><td> 44</td><td> 44</td><td> 44</td><td> 44</td><td>A4</td>
<td> 4910</td><td>FT</td><td>B7</td><td> 32</td><td>0D</td><td> 11</td><td> 04</td><td> 33</td><td>2E</td><td> 33</td><td> 32</td><td>BE</td><td> 53</td><td>D6</td><td>IF</td><td>BE</td><td>B7</td>
<td> 4920</td><td>2D</td><td>D6</td><td>IF</td><td>C8</td><td>B7</td><td> 31</td><td>5F</td><td> 36</td><td> 32</td><td> 36</td><td>2E</td><td> 66</td><td> 55</td><td> 35</td><td> 31</td><td> 35</td>
<td> 4930</td><td>2D</td><td> 66</td><td> 55</td><td>5C</td><td>A3</td><td>0C</td><td> 25</td><td>EF</td><td>5F</td><td>E6</td><td> 55</td><td>IT IS</td><td> 56</td><td>E8</td><td> 57</td><td>E8</td>
<td> 4940</td><td> 58</td><td>S3</td><td> 59</td><td>E8</td><td>5C</td><td>E8</td><td>5F</td><td>E7</td><td> 61</td><td>5C</td><td>A3</td><td> 03</td><td> 25</td><td>EB</td><td>5C</td><td>E5</td>
<td> 4950</td><td> 55</td><td>5C</td><td>BF</td><td> 14</td><td>5F</td><td> 49</td><td> 66</td><td>2D</td><td> 66</td><td> 31</td><td> 66</td><td> 35</td><td>5C</td><td>A3</td><td> 04</td><td> 25</td>
<td> 4960</td><td>F4</td><td>BE</td><td> 14</td><td>A3</td><td> 17</td><td> 25</td><td>E8</td><td> 09</td><td> 01</td><td>0D</td><td>FLAT</td><td> 03</td><td> 63</td><td>2D</td><td> 63</td><td> 31</td>
<td> 4970</td><td> 63</td><td> 35</td><td>5a</td><td>A3</td><td> 01</td><td> 26</td><td>F5</td><td> 00</td><td> 11</td><td> 03</td><td>CC</td><td>1A</td><td>EE</td><td>A6</td><td>0F</td><td>B7</td>
<td> 4980</td><td> 01</td><td>3F</td><td>IF</td><td> 04</td><td> 10</td><td> 03</td><td> 02</td><td> 10</td><td> 06</td><td>IF</td><td> 10</td><td>A6</td><td> 04</td><td> 20</td><td> 08</td><td>IE</td>
<td> 4990</td><td> 10</td><td>3C</td><td>IF</td><td> 14</td><td> 11</td><td>A6</td><td> 30</td><td>B7</td><td> 20</td><td>CC</td><td>ID</td><td> 55</td><td>IF</td><td> 22</td><td>A6</td><td> 19</td>
<td>49A.0</td><td>B7</td><td>ID</td><td>BE</td><td>IE</td><td>D6</td><td>IF</td><td>OF</td><td>B7</td><td> 13</td><td>D6</td><td>IF</td><td>E5</td><td>B7</td><td> 14</td><td>D6</td><td>IF</td>
<td> 4930</td><td>SC</td><td>B7</td><td> 12</td><td>A3</td><td> 00</td><td> 27</td><td>ID</td><td>5a</td><td>A3</td><td> 02</td><td> 25</td><td>ID</td><td>5a</td><td>5a</td><td>9D</td><td> 21</td>
<td>49C0</td><td> 02</td><td>IS</td><td> 22</td><td>D6</td><td>IF</td><td>D2</td><td>B7</td><td> 17</td><td>D5</td><td>IF</td><td>D6</td><td>B7</td><td> 18</td><td>D6</td><td>IF</td><td>GIVES</td>
<td>49D0</td><td>B7</td><td> 19</td><td> 20</td><td> 18</td><td>IE</td><td> 22</td><td>9D</td><td> 20</td><td> 02</td><td>AE</td><td> 01</td><td>A6</td><td> 03</td><td>4A</td><td> 26</td><td>FD</td>
<td>49 I0</td><td>E6</td><td>2D</td><td>B7</td><td> 17</td><td>E6</td><td> 31</td><td>B7</td><td> 18</td><td>E6</td><td> 35</td><td>B7</td><td> 19</td><td> 08</td><td> 01</td><td> 07</td><td> 17</td>
<td> 4970</td><td> 01</td><td> 17</td><td> 01</td><td>9D</td><td> 20</td><td> 06</td><td> 33</td><td> 17</td><td> 33</td><td> 18</td><td> 33</td><td> 19</td><td>A6</td><td>0D</td><td>B7</td><td> 28</td>
<td>4A00</td><td>FLAT</td><td> 03</td><td>9F</td><td>4C</td><td>A4</td><td> 03</td><td> 37</td><td>1A</td><td> 97</td><td> 17</td><td> 01</td><td>0E</td><td> 00</td><td> 00</td><td> 66</td><td> 39</td>
<td> 4/10</td><td> 66</td><td>3D</td><td> 66</td><td> 41</td><td>0F</td><td> 12</td><td>6C</td><td>E6</td><td> 39</td><td>B8</td><td> 17</td><td>B7</td><td> 15</td><td>E6</td><td>3D</td><td>B8</td>
<td>4A20</td><td> 18</td><td>B7</td><td> 16</td><td>E6</td><td> 41</td><td> 38</td><td> 19</td><td> 44</td><td> 97</td><td>D6</td><td>IE</td><td>F3</td><td>BE</td><td> 16</td><td> 54</td><td>D9</td>
<td>4A30</td><td>IE</td><td>F3</td><td>BS</td><td> 15</td><td> 54</td><td>D9</td><td>IE</td><td>F3</td><td>BE</td><td>1A</td><td>E7</td><td> 25</td><td>B6</td><td> 25</td><td>BB</td><td> 26</td>
<td>4A40</td><td>B3</td><td> 27</td><td>BB</td><td> 28</td><td>Al</td><td>0C</td><td> 22</td><td> 03</td><td>CC</td><td>1A</td><td>FT</td><td>0E</td><td> 22</td><td> 03</td><td>9D</td><td> 20</td>
<td>4A50</td><td> 07</td><td>Al</td><td> 50</td><td> 25</td><td> 03</td><td>CC</td><td>IB</td><td> 03</td><td>0E</td><td> 01</td><td> 07</td><td>3A</td><td>ID</td><td> 26</td><td> 08</td><td>CC</td>
<td>4A60</td><td>IE</td><td>6A</td><td>A5</td><td> 19</td><td>B7</td><td>ID</td><td>9D</td><td>B6</td><td>IE</td><td>Al</td><td> 01</td><td> 27</td><td>3e</td><td>3A</td><td> 13</td><td> 26</td>
<td>4A70</td><td>3e</td><td>3A</td><td> 14</td><td> 27</td><td>3e</td><td>BT</td><td>IE</td><td>D6</td><td>IT</td><td>OF</td><td>B7</td><td> 13</td><td>BE</td><td>1A</td><td> 21</td><td>E7</td>
<td>4A80</td><td>CC</td><td>1A</td><td> 02</td><td>3A</td><td> 12</td><td> 27</td><td> 03</td><td>9D</td><td> 20</td><td> 02</td><td>IE</td><td> 12</td><td>0E</td><td> 01</td><td> 07</td><td>3A</td>
<td>4A90</td><td>ID</td><td> 26</td><td> 08</td><td>CC</td><td>IE</td><td>6A</td><td>A6</td><td> 19</td><td>B7</td><td>ID</td><td>9D</td><td>A6</td><td> 11</td><td>4A</td><td> 26</td><td>FD</td>
<td>4AA0</td><td>9D</td><td> 15</td><td> 01</td><td>A6</td><td> 02</td><td>4A</td><td> 26</td><td>FD</td><td>CC</td><td>1A</td><td> 02</td><td>9D</td><td>9D</td><td>9D</td><td>9D</td><td>9D</td>
<td>4A30</td><td>9D</td><td> 20</td><td>EE</td><td>3e</td><td>IE</td><td> 26</td><td> 12</td><td>A6</td><td> 04</td><td>B7</td><td> 01</td><td>A6</td><td> 02</td><td>4A</td><td> 26</td><td>FD</td>
<td>4AC0</td><td>3F</td><td> 01</td><td>A6</td><td>0C</td><td>B7</td><td> 13</td><td>CC</td><td> 13</td><td> 34</td><td>5a</td><td> 27</td><td> 22</td><td>5a</td><td> 26</td><td>IB</td><td>3A</td>
<td>4AD0</td><td> 24</td><td> 27</td><td> 03</td><td>A6</td><td> 02</td><td> 37</td><td>IE</td><td>9D</td><td>9D</td><td> 20</td><td>0C</td><td>0C</td><td> 22</td><td> 04</td><td>3F</td><td>IE</td>
<td>4AE0</td><td> 20</td><td> 05</td><td>A6</td><td> 03</td><td>B7</td><td>IE</td><td>9D</td><td>CC</td><td>IB</td><td> 59</td><td>A3</td><td> 04</td><td> 27</td><td>0C</td><td>3F</td><td> 01</td>
<td>4AF0</td><td>3F</td><td>IE</td><td> 08</td><td> 10</td><td> 02</td><td>3C</td><td>IE</td><td>CC</td><td> 19</td><td>9C</td><td>3F</td><td> 01</td><td>CC</td><td>IE</td><td>A0</td><td>BE</td>
<td> 4500</td><td>IS</td><td> 26</td><td> 21</td><td> 53</td><td> 93</td><td> 21</td><td>0A</td><td> 13</td><td> 22</td><td> 20</td><td> 06</td><td>BE</td><td>IE</td><td> 26</td><td> 08</td><td>1C</td>
<td>4B10</td><td> 22</td><td>A6</td><td> 04</td><td>B7</td><td>IS</td><td> 20</td><td>E0</td><td>5a</td><td>5a</td><td>5a</td><td>A3</td><td> 02</td><td> 24</td><td>1A</td><td>A6</td><td> 02</td>
<td> 4320</td><td> 37</td><td>IS</td><td> 20</td><td> 20</td><td>5a</td><td>A3</td><td> 02</td><td> 24</td><td> 03</td><td>CC</td><td> 13</td><td>C8</td><td>5a</td><td>5a</td><td>A3</td><td> 02</td>
<td> 4330</td><td> 24</td><td> 05</td><td>A6</td><td> 02</td><td>B7</td><td>IE</td><td> 20</td><td> 07</td><td>5a</td><td>5a</td><td> 26</td><td>BE</td><td>CC</td><td>ID</td><td> 55</td><td> 93</td>
<td> 4340</td><td>FLAT</td><td> 93</td><td> 20</td><td> 02</td><td>AE</td><td> 35</td><td>ec</td><td> 22</td><td> 04</td><td>A6</td><td> 01</td><td> 20</td><td> 04</td><td>A6</td><td> 10</td><td> 21</td>
<td> 4350</td><td>FC</td><td>B7</td><td> 24</td><td>9D</td><td> 93</td><td>A6</td><td> 03</td><td> 20</td><td> 03</td><td>AE</td><td> 91</td><td> 93</td><td>A6</td><td> 05</td><td> 20</td><td> 04</td>
<td> 4360</td><td>AT</td><td>IF</td><td>FLAT</td><td>IE</td><td> 17</td><td> 01</td><td>BF</td><td> 13</td><td>4A</td><td> 26</td><td>FD</td><td>0E</td><td> 01</td><td> 07</td><td>3A</td><td>ID</td>
<td> 4370</td><td> 26</td><td> 08</td><td>CC</td><td>IS</td><td>6a</td><td>A6</td><td> 19</td><td> 37</td><td>ID</td><td> 93</td><td>CD</td><td>IE</td><td>B5</td><td>3A</td><td> 13</td><td> 26</td>
<td> 4380</td><td>YOU</td><td>CC</td><td> 19</td><td>9C</td><td>9C</td><td>CB</td><td>IE</td><td>BC</td><td>0E</td><td> 01</td><td> 09</td><td>A6</td><td>0F</td><td>B7</td><td> 01</td><td>A3</td>
<td> 4390</td><td>2C</td><td>CC</td><td>IS</td><td>6A</td><td>3A</td><td> 13</td><td> 36</td><td> 13</td><td>Al</td><td> 02</td><td> 24</td><td> 18</td><td>A6</td><td>0F</td><td>B7</td><td> 01</td>
<td>4BA0</td><td>A6</td><td> 02</td><td>4A</td><td> 25</td><td>FD</td><td>3F</td><td> 01</td><td> 35</td><td> 13</td><td> 26</td><td> 09</td><td>AD</td><td> 10</td><td>A3</td><td> 05</td><td>3F</td>
<td> 4330</td><td>IS</td><td>CC</td><td> 19</td><td>9C</td><td>FLAT</td><td> 36</td><td>B7</td><td> 08</td><td>A6</td><td>0F</td><td>B7</td><td> 09</td><td>8F</td><td>AE</td><td> 06</td><td>A6</td>
<td>43C0</td><td>A5</td><td>4A</td><td> 26</td><td>FD</td><td>5a</td><td> 26</td><td>T8</td><td> 81</td><td>A6</td><td> 61</td><td>B7</td><td> 13</td><td>A6</td><td> 03</td><td>B7</td><td>1A</td>
<td> 4330</td><td>A6</td><td> 05</td><td>4A</td><td> 26</td><td>FB</td><td> 93</td><td>CD</td><td>ID</td><td>ID</td><td>B6</td><td> 13</td><td>Al</td><td> 05</td><td> 22</td><td>0C</td><td> 56</td>
<td>43Σ0</td><td> 39</td><td> 49</td><td> 36</td><td>1C</td><td> 13</td><td>No</td><td> 13</td><td> 01</td><td> 93</td><td> 20</td><td>0C</td><td> £6</td><td> 39</td><td>E7</td><td> 45</td><td> £6</td>
<td>43F0</td><td> 33</td><td>E7</td><td> 49</td><td> 56</td><td> 41</td><td> 57</td><td> 43</td><td>3A</td><td> 13</td><td> 27</td><td> 08</td><td>CB</td><td>IE</td><td>AE</td><td>CD</td><td> 13</td>
<td>4C00</td><td> 10</td><td> 20</td><td> 33</td><td>3F</td><td> 13</td><td>A6</td><td> 03</td><td>B7</td><td> 13</td><td> 36</td><td>1C</td><td>4A</td><td> 26</td><td>FB</td><td>CD</td><td> 13</td>
<td>4C10</td><td> 05</td><td>IE</td><td> 11</td><td> 12</td><td> 11</td><td>0F</td><td> 11</td><td> 05</td><td>A6</td><td> 04</td><td> 93</td><td> 20</td><td> 04</td><td>3A</td><td>IB</td><td>A6</td>
<td>4C20</td><td> 01</td><td> 37</td><td> 14</td><td>CD</td><td> 13</td><td> 13</td><td>A6</td><td> 08</td><td>4A</td><td> 25</td><td>FD</td><td> 93</td><td> 36</td><td> 13</td><td>4C</td><td>A4</td>
<td>4C30</td><td> 03</td><td>B7</td><td> 13</td><td> 97</td><td> 56</td><td> 45</td><td>B8</td><td> 17</td><td> 37</td><td> 15</td><td>E5</td><td> 49</td><td> 38</td><td> 18</td><td>B7</td><td> 15</td>
<td>4C40</td><td>E6</td><td> 43</td><td> 38</td><td> 19</td><td> 44</td><td> 97</td><td> 36</td><td>IE</td><td>F3</td><td>BE</td><td> 16</td><td> 54</td><td> 39</td><td>IE</td><td>F3</td><td>BE</td>
<td>4C50</td><td> 15</td><td> 54</td><td> 39</td><td>IS</td><td>F3</td><td>BE</td><td> 13</td><td> 02</td><td> 11</td><td> 04</td><td>E7</td><td> 29</td><td> 20</td><td> 04</td><td>E7</td><td> 25</td>
<td>4C60</td><td> 21</td><td>TC</td><td>3A</td><td> 14</td><td> 26</td><td> 33</td><td>CB</td><td> 13</td><td>ID</td><td> 03</td><td> 11</td><td> 32</td><td> 36</td><td> 25</td><td>BB</td><td> 26</td>
<td>4C70</td><td>BB</td><td> 27</td><td> 33</td><td> 28</td><td>Al</td><td>0C</td><td> 22</td><td> 02</td><td> 20</td><td>3A</td><td> 01</td><td> 10</td><td> 03</td><td> 93</td><td> 20</td><td> 08</td>
<td>4C80</td><td>Al</td><td> 50</td><td> 25</td><td> 04</td><td> 15</td><td> 11</td><td> 20</td><td>2E</td><td>B6</td><td> 30</td><td>B7</td><td> 17</td><td>B6</td><td> 34</td><td>B7</td><td> 18</td>
<td>4C90</td><td> 35</td><td> 38</td><td> 37</td><td> 19</td><td>A6</td><td>0C</td><td>4A</td><td> 26</td><td>C3</td><td> 13</td><td> 11</td><td>CC</td><td>1C</td><td> 15</td><td>0B</td><td> 10</td>
<td>4CA0</td><td> 07</td><td>A6</td><td> 02</td><td>4A</td><td> 26</td><td> 73</td><td> 20</td><td> 11</td><td>B5</td><td> 29</td><td>BB</td><td>2A</td><td> 33</td><td>2B</td><td> 33</td><td>2C</td>
<td>4C30</td><td>Al</td><td>0C</td><td> 22</td><td> 05</td><td> 14</td><td> 11</td><td>CC</td><td> 13</td><td>2F</td><td>CD</td><td>ID</td><td> 10</td><td>IF</td><td> 11</td><td>3A</td><td> 13</td>
<td>4CC0</td><td> 27</td><td>0F</td><td> 12</td><td> 11</td><td>3C</td><td>IB</td><td>CB</td><td> 13</td><td> 05</td><td> 13</td><td> 01</td><td> 93</td><td> 93</td><td> 93</td><td>CC</td><td>1C</td>
<td>4CB0</td><td> 15</td><td>A6</td><td> 07</td><td>4A</td><td> 93</td><td> 93</td><td> 26</td><td>FB</td><td>A6</td><td> 02</td><td> 37</td><td>IE</td><td>CD</td><td> 13</td><td> 13</td><td> 08</td>
<td>4CE0</td><td> 10</td><td>0A</td><td>ID</td><td> 01</td><td> 13</td><td> 01</td><td> 93</td><td>3A</td><td>IE</td><td>CC</td><td> 19</td><td>9C</td><td>3A</td><td> 24</td><td> 27</td><td> 06</td>
<td>4CF0</td><td> 13</td><td> 01</td><td> 13</td><td> 01</td><td> 20</td><td>0C</td><td>0C</td><td> 22</td><td> 04</td><td>3F</td><td>IS</td><td> 20</td><td> 05</td><td>A6</td><td> 03</td><td>B7</td>
<td> 4300</td><td>IS</td><td> 93</td><td>CC</td><td>IB</td><td> 60</td><td>BE</td><td> 13</td><td> 36</td><td>1C</td><td> 66</td><td> 45</td><td> 66</td><td> 49</td><td> 66</td><td> 43</td><td> 81</td>
<td> 4310</td><td> 15</td><td> 2?</td><td> 37</td><td> 17</td><td>B5</td><td> 33</td><td>B7</td><td> 18</td><td> 36</td><td> 37</td><td> 37</td><td> 19</td><td> 81</td><td> 35</td><td>1A</td><td>4C</td>
<td> 4320</td><td>A4</td><td> 03</td><td>B7</td><td>1A</td><td> 97</td><td>0E</td><td> 00</td><td> 00</td><td> 66</td><td> 39</td><td> 66</td><td> 33</td><td> 66</td><td> 41</td><td> .81</td><td>3F</td>
<td> 4330</td><td> 17</td><td> 03</td><td> 11</td><td> 02</td><td>3C</td><td>IF</td><td> 04</td><td> 10</td><td> 06</td><td> 05</td><td> 11</td><td> 13</td><td> 03</td><td> 10</td><td> 10</td><td>A6</td>
<td> 4340</td><td> 20</td><td> 37</td><td> 20</td><td>IF</td><td> 10</td><td>0A</td><td> 00</td><td> 03</td><td>A6</td><td> 05</td><td>B7</td><td>IE</td><td>CC</td><td> 19</td><td>9C</td><td>A6</td>
<td> 4350</td><td> 80</td><td>B7</td><td> 20</td><td>IE</td><td> 10</td><td>FLAT</td><td> 04</td><td> 20</td><td>0C</td><td>A6</td><td>0C</td><td> 37</td><td> 20</td><td>IF</td><td> 10</td><td>A 6</td>
<td> 4360</td><td> 02</td><td>B7</td><td>IF</td><td>A6</td><td>0C</td><td>B7</td><td> 22</td><td>A6</td><td> 60</td><td>B7</td><td> 01</td><td>A6</td><td> 19</td><td>B7</td><td> 13</td><td>A6</td>
<td> 4370</td><td> 73</td><td>B7</td><td> 21</td><td> 09</td><td> 22</td><td> 03</td><td> 93</td><td> 20</td><td> 02</td><td>1C</td><td> 00</td><td> 17</td><td> 01</td><td> 05</td><td> 22</td><td> 04</td>
<td> 4330</td><td>A6</td><td> 06</td><td> 20</td><td> 04</td><td> 21</td><td>FE</td><td>A6</td><td> 10</td><td>4A</td><td> 26</td><td>FD</td><td> 93</td><td> 93</td><td> 13</td><td> 00</td><td>3A</td>
<td> 4390</td><td> 21</td><td> 26</td><td>6C</td><td>3A</td><td> 20</td><td> 26</td><td>0F</td><td> 07</td><td> 22</td><td> 05</td><td>1C</td><td> 23</td><td>CC</td><td> 18</td><td> 93</td><td> 07</td>
<td>43 A 0</td><td> 11</td><td> 01</td><td> 81</td><td>CC</td><td>IE</td><td>2C</td><td>3A</td><td>IF</td><td> 27</td><td> 12</td><td> 04</td><td> 22</td><td> 05</td><td> 21</td><td> 04</td><td>A6</td>
<td>4DB0</td><td>0A</td><td> 20</td><td> 02</td><td>A6</td><td> 01</td><td>4A</td><td> 26</td><td>FD</td><td> 93</td><td> 93</td><td> 20</td><td> 33</td><td>3C</td><td>IF</td><td>A5</td><td> 73</td>
<td>43C0</td><td> 37</td><td> 21</td><td> 07</td><td> 22</td><td> 15</td><td> 05</td><td> 22</td><td> 05</td><td> 15</td><td> 22</td><td> 93</td><td> 20</td><td>AC</td><td> 14</td><td> 22</td><td>A6</td>
<td> 4330</td><td>it is</td><td>4A</td><td> 26</td><td>F3</td><td> 17</td><td> 01</td><td> 93</td><td>3C</td><td>IF</td><td> 20</td><td>9E</td><td> 09</td><td> 22</td><td> 04</td><td> 18</td><td> 22</td>
<td> 4350</td><td> 20</td><td>or</td><td> 19</td><td> 22</td><td> 21</td><td>FC</td><td> 05</td><td> 11</td><td> 03</td><td> 93</td><td> 20</td><td>0B</td><td> 02</td><td> 22</td><td> 08</td><td> 12</td>
<td>43F0</td><td> 22</td><td>A6</td><td> 05</td><td> 37</td><td>IF</td><td> 20</td><td> 32</td><td> 13</td><td> 22</td><td> 93</td><td> 93</td><td> 93</td><td>CC</td><td> 13</td><td> 79</td><td>0E</td>
<td>4.T00</td><td> 10</td><td>0E</td><td> 04</td><td> 22</td><td> 07</td><td>A6</td><td> 09</td><td>4A</td><td> 26</td><td>7d</td><td>9D</td><td>9D</td><td> 17</td><td> 01</td><td> 20</td><td> 11</td>
<td>4E10</td><td>0E</td><td> 01</td><td> 09</td><td>3A.</td><td>.ID</td><td> 26</td><td>0A</td><td>ID</td><td> 10</td><td>CC</td><td>IE</td><td>6C</td><td>A6</td><td> 19</td><td>B7</td><td>ID</td>
<td>4Ε20</td><td>9D</td><td> 16</td><td> 01</td><td>9D</td><td>A6</td><td> 02</td><td>4A</td><td> 26</td><td>FD</td><td>CC</td><td>ID</td><td> 73</td><td>IB</td><td> 01</td><td> 07</td><td> 10</td>
<td> 4730</td><td> 07</td><td>ID</td><td> 01</td><td> 11</td><td> 11</td><td>CC</td><td>1Σ</td><td>A0</td><td> 01</td><td> 11</td><td> 04</td><td> 11</td><td> 11</td><td> 20</td><td> 15</td><td>0C</td>
<td>4Ε40</td><td> 10</td><td> 08</td><td> 02</td><td> 10</td><td> 05</td><td>ID</td><td> 01</td><td>CC</td><td> 18</td><td> 93</td><td> 06</td><td> 10</td><td> 07</td><td>A6</td><td> 06</td><td>B7</td>
<td> •4750</td><td> 17</td><td>CC</td><td> 19</td><td>9C</td><td>A6</td><td> 19</td><td>B7</td><td>ID</td><td>0E</td><td> 01</td><td> 07</td><td>3A</td><td>ID</td><td> 26</td><td> 07</td><td>CC</td>
<td> 4760</td><td>IS</td><td>6C</td><td>A 6</td><td> 19</td><td>B7</td><td>ID</td><td>AD</td><td>4D</td><td> 20</td><td>of</td><td> 16</td><td> 11</td><td>A6</td><td> 19</td><td>B7</td><td>ID</td>
<td>4Ϊ70</td><td> 11</td><td> 11</td><td> 37</td><td> 01</td><td>ID</td><td> 00</td><td> 04</td><td> 10</td><td> 17</td><td>0C</td><td> 10</td><td> 14</td><td> 07</td><td> 11</td><td> 03</td><td> 37</td>
<td> 4790</td><td>IT</td><td>A 6</td><td> 01</td><td>B7</td><td> 20</td><td> 17</td><td> 10</td><td>CD</td><td>ID</td><td> 55</td><td>AD</td><td>3A</td><td> 16</td><td> 11</td><td> 20</td><td> 04</td>
<td>4EP0</td><td> 17</td><td> 11</td><td>1C</td><td> 01</td><td> 07</td><td> 01</td><td> 07</td><td>3A</td><td>ID</td><td> 26</td><td> 07</td><td>ID</td><td> 01</td><td> 06</td><td> 11.</td><td> ,02</td>
<td>4ΓΑ.0</td><td>AD</td><td> 24</td><td> 17</td><td> 11</td><td> 20</td><td> 41</td><td>A6</td><td> 19</td><td> 37</td><td>ID</td><td>AD</td><td> 09</td><td> 20</td><td>E6</td><td>9D</td><td>ID</td>
<td>4C30</td><td> 01</td><td>ID</td><td> 01</td><td> 20</td><td> 05</td><td>A6</td><td> 14</td><td>4A</td><td> 26</td><td>7d</td><td> 21</td><td>GE</td><td> 16</td><td> 01</td><td>A6</td><td> 05</td>
<td>4EC0</td><td>4A</td><td> 26</td><td>7d</td><td> 17</td><td> 01</td><td> 81</td><td>A6</td><td>0C</td><td>B7</td><td> 01</td><td>A6</td><td>C8</td><td>4A</td><td> 26</td><td>7d</td><td> 18</td>
<td>4ED0</td><td> 11</td><td>0C</td><td> 23</td><td> 10</td><td>A6</td><td> 03</td><td> 57</td><td> 08</td><td> 00</td><td> 01</td><td>5C</td><td>4A</td><td> 26</td><td> 79</td><td>A3</td><td> 01</td>
<td> 4770</td><td> 22</td><td> 02</td><td> 19</td><td> 11</td><td>3F</td><td> 01</td><td> 81</td><td> 07</td><td> 23</td><td> 06</td><td> 09</td><td> 11</td><td> 03</td><td>CC</td><td>ID</td><td> 59</td>
<td>4Σ? 0</td><td>CC</td><td> 18</td><td> 93</td><td> 00</td><td> 01</td><td> 01</td><td> 02</td><td> 01</td><td> 02</td><td> 02</td><td> 03</td><td> 01</td><td> 02</td><td> 02</td><td> 03</td><td> 02</td>
<td> 4700</td><td> 03</td><td> 03</td><td> 04</td><td> 01</td><td> 02</td><td> 02</td><td> 03</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 03</td>
<td> 4710</td><td> 04·</td><td> 04</td><td> 05</td><td> 01</td><td> 02</td><td> 02</td><td> 03</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 03</td>
<td> 4720</td><td> 04</td><td> 04</td><td> 05</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 04</td>
<td> 4730</td><td> 05</td><td> 05</td><td> 06</td><td> 01</td><td> 02</td><td> 02</td><td> 03</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 03</td>
<td>4Γ40</td><td> 04</td><td> 04</td><td> 05</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 04</td>
<td> 4750</td><td> 05</td><td> 05</td><td> 06</td><td> 02</td><td> 03</td><td> 03</td><td> 04</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 04</td>
<td> 4760</td><td> 05</td><td> 05</td><td> 06</td><td> 03</td><td> 04</td><td> 04</td><td> 05</td><td> 04</td><td> 05</td><td> 05</td><td> 06</td><td> 04</td><td> 05</td><td> 05</td><td> 06</td><td> 05</td>
<td> 4770</td><td> 06</td><td> 06</td><td> 07</td><td>Dl</td><td>FROM</td><td> 88</td><td>6B</td><td>2A</td><td>AC</td><td>5a</td><td>D3</td><td> 14</td><td> 60</td><td> 84</td><td>B8</td><td> 83</td>
<td> 4780</td><td>B8</td><td> 10</td><td> 60</td><td> 68</td><td>0B</td><td>6C</td><td> 34</td><td>ED</td><td> 30</td><td> 83</td><td> 64</td><td> 39</td><td>4C</td><td> 07</td><td> 38</td><td>6T</td>
<td> 4790</td><td> 90</td><td> 77</td><td>D0</td><td> 08</td><td> 30</td><td> 98</td><td> 37</td><td>3B</td><td> 72</td><td>8C</td><td>C3</td><td> 27</td><td> 87</td><td> 50</td><td>0C</td><td>E4</td>
<td> 47/0</td><td> 20</td><td> 10</td><td> 43</td><td>A0</td><td>A0</td><td>2A</td><td>Ϊ5</td><td> 66</td><td>A6</td><td>A5</td><td>A2</td><td>6Σ</td><td>DD</td><td> 51</td><td>3C</td><td>8A</td>
<td> 4750</td><td>3e</td><td>C8</td><td>Sk</td><td>6C</td><td> 14</td><td>B7</td><td>1C</td><td>D3</td><td>DC</td><td>6D</td><td>THAT</td><td>4A</td><td> 63</td><td> 50</td><td>EE</td><td>5C</td>
<td>47C0</td><td>7e</td><td> 87</td><td>BT</td><td> 73</td><td>9D</td><td>EC</td><td> 18</td><td> 17</td><td>β7</td><td> 06</td><td>0C</td><td> 02</td><td> 00</td><td>0C</td><td> 07</td><td> 09</td>
<td>47D0</td><td> 06</td><td> 09</td><td> 40</td><td> 40</td><td>2C</td><td>2C</td><td> 65</td><td> 65</td><td> 94</td><td> 94</td><td> 92</td><td> 92</td><td> 06</td><td> 06</td><td> 60</td><td> 01</td>
<td> 4770</td><td> 08</td><td> 66</td><td>AC</td><td> 74</td><td> 74</td><td> 01</td><td> 01</td><td> 01</td><td> 01</td><td>0A</td><td> 62</td><td> 62</td><td> 58</td><td> 80</td><td> 58</td><td> 58</td>
<td> 4770</td><td> 58</td><td> 58</td><td> 58</td><td> 00</td><td colspan="2"> 00 .00</td><td>IB</td><td> 84</td><td> 13</td><td>e4</td><td> 18</td><td> 00</td><td> 18</td><td> 00</td><td> 18</td><td> 00</td>
Contents29
7 sheets
Sheet 1 Sheet 2 Sheet 3 Sheet 4 Sheet 5 Sheet 6 Sheet 7
25 members in 12 offices
Priority claims6
| Document | Office | Kind | Date |
|---|---|---|---|
| 31059281 | United States of America | A | |
| 8201437 | United States of America | W | |
| 310592 | – | – | – |
| US19810310592 | – | – | – |
| US8201437 | – | – | – |
| WO1982US01437 | – | – | – |
Members25
| Document | Office | Kind | |
|---|---|---|---|
| WO8301546A1 | World Intellectual Property Organization (WIPO) | A1 | |
| WO8301546A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU9124082A | Australia | A | |
| DK265683A | Denmark | A | |
| DK265683D0 | Denmark | D0 | |
| FI832115A0 | Finland | A0 | |
| FI832115L | Finland | L | |
| NO832131L | Norway | L | |
| BR8207924A | Brazil | A | |
| JPS58501700A | Japan | A | |
| EP0090851A1 | European Patent Office (EPO) | A1 | |
| US4424514A | United States of America | A | |
| KR840002182A | Republic of Korea | A | |
| KR840002182A | Republic of Korea | A | |
| CA1179738A | Canada | A | |
| EP0090851A4 | European Patent Office (EPO) | A4 | |
| AU561174B2 | Australia | B2 | |
| FI75243BThis record | Finland | B | |
| FI75243C | Finland | C | |
| NO159230B | Norway | B | |
| KR880002163B1 | Republic of Korea | B1 | |
| KR880002163B1 | Republic of Korea | B1 | |
| NO159230C | Norway | C | |
| EP0090851B1 | European Patent Office (EPO) | B1 | |
| DE3279335D1 | Germany | D1 |
2 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Patent lapsedLapsedMM | MM | |
| Patent lapsedLapsedMM | MM |
Numbers
- Publication, DOCDB
- 75243
- Publication, EPODOC
- FI75243B
- Application
- 832115
- Application, DOCDB
- 832115
- Application, EPODOC
- FI19830002115
Titles2
- English
- The decoder SAMT FOERFARANDE Foer the receiving AV EN AKTIVERINGSKOD I EN OEVERFOERD INFORMATION.
- Finnish
- DEKODER SAMT FOERFARANDE FOER MOTTAGANDE AV EN AKTIVERINGSKOD I EN OEVERFOERD INFORMATION.
Classification
- CPC, 3
- H04W88/026
- H04B7/26
- Y02D30/70
- IPC, 3
- H04B
- H04B7 26
- H04W88 02
