Remote control transmitter and transmission system employing the same

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a preset type remote control transmitter capable of remote control of a plurality of electronic devices and a transmission system using the same.

【0002】

[Conventional technology]

In recent years, in addition to televisions and videos, various electronic devices have become widespread, and so-called preset type remote control transmitters that can remotely control these plurality of electronic devices with a single transmitter have been widely used.

【0003】

Such a conventional remote control transmitter will be described with reference to FIGS. 4 to 9.

【0004】

FIG. 4 is a block circuit diagram of a conventional remote control transmitter. In the figure, 1 is an operation unit in which a plurality of operation keys are arranged, 2 is a storage unit formed by a microcomputer and various electronic components, and 3 is a microcomputer. It is a control unit formed by various electronic components, and various data for remote operation of the device are stored in the storage unit 2.

【0005】

Reference numeral 4 denotes a transmitter such as an infrared light emitting diode. The operation unit 1, the storage unit 2, and the transmitter 4 are connected to the control unit 3, and the control unit 3 receives data from the storage unit 2 by the operation of the operation unit 1. The remote control transmitter is configured by reading out and creating a transmission format so that the transmission unit 4 transmits this transmission format as a remote control signal.

【0006】

Next, the transmission format transmitted as the remote control signal from the remote control transmitter configured as described above will be described with reference to FIGS. 5 and 6.

【0007】

The transmission format is usually formed by a custom code that determines the manufacturer or type of device, a data code assigned to each operation key, etc., and each of these codes is composed of a different number of bits and a different bit width. There is.

【0008】

For example, the transmission format A shown in the transmission format diagram of FIG. 5 (a) is a 1-bit header followed by a 5-bit custom code, a 6-bit data code, a 5-bit inversion custom code, and a 6-bit inversion data. It is composed of a code and a 1-bit end code, and if the operation key is held down after transmitting these, all the codes are configured to be repeated in a cycle of about 105 ms.

【0009】

In addition, the transmission format B in Fig. 5 (b) is formed from the header and each code of 8-bit custom and data, inverted custom, and inverted data, and when the operation key is held down, each code It is configured so that only the repeat code is output.

【0010】

Furthermore, the transmission format C in Fig. 5 (c) has no header and is composed of a 3-bit custom code, a 7-bit data code, and an end code, and has a period of about 25 ms when the operation keys are held down. Is configured so that all code is repeated.

【0011】

The header of each transmission format and the number of bits and the time width of each code which is a combination of 0 and 1 are determined for each transmission format as shown in the bit data diagram of FIG.

【0012】

In addition, the program for creating each transmission format is usually determined individually according to the manufacturer and the type of device, and the number and time width of the bits of each code and the combination of 0 and 1 of each code, for example, 10110. As individual programs A, B, C, ... Containing such data, they are stored in the storage unit 2 of the remote control transmitter as shown in FIG.

【0013】

Then, when a predetermined operation key of the operation unit 1 is operated, the control unit 3 reads these from the storage unit 2 to create each transmission format, and this is configured to be transmitted as a remote control signal from the transmission unit 4. ..

【0014】

In addition, specific individual programs A, B, C, ... for creating such different transmission formats A, B, C, ... Are shown in FIGS. 7 to 9, respectively. It is configured.

【0015】

Hereinafter, the case of creating and transmitting the transmission format A will be described using the program chart of FIG. 7 as an example.

【0016】

First, when a predetermined operation key of the operation unit 1, for example, the "power" key is operated and the "1" key is operated twice, for example, the TV of the manufacturer A is selected, and then, for example, "volume +". When the keys are operated, the control unit 3 reads out the individual program A of the transmission format A shown in FIG. 7 from the storage unit 2 based on these operations.

【0017】

Then, using the data in the program, the HIGH width and LOW width of the header are read out and output to the transmission unit 4, and the transmission unit 4 uses this as a remote control signal such as infrared rays toward a device to be remotely controlled, for example, a television. Send.

【0018】

Next, create a 5-bit custom code of 10110 for the HIGH and LOW widths of 0 and 1, respectively, and similarly create a 6-bit data code of 000001 and a 5-bit inversion custom code of 01001, 111110. Create a 6-bit inverted data code.

【0019】

Then, after setting the number of bits of the custom code counter to 5, the data code counter to 6, the inverted custom code counter to 5, and the inverted data code counter to 6, each of these codes is set to 1. Bit-by-bit sequential transmission is performed from the transmission unit 4.

【0020】

At this time, 1 is subtracted from the counter of each code for each 1-bit transmission. For example, in the case of a 5-bit custom code, the counter becomes 0 when transmitted 5 times, and the next data code is transmitted. Transmission is performed while counting the number of bits of each code.

【0021】

Then, send the end code after the 6th bit of the inverted data code, check the input of the operation key after this, and if the same "volume +" key is held down, again from the same header Sends a series of codes and ends the transmission if it has not been manipulated.

【0022】

Further, when remotely controlling another manufacturer or device, for example, a video of manufacturer B or a television of manufacturer C, when a predetermined operation key of operation unit 1 is operated, the control unit 3 is displayed in FIGS. 8 and 9. Using the individual programs B and C as shown above, transmission formats B and C are created in the same manner as above, and this is transmitted to the device operated by the transmission unit 4 as a remote control signal.

【0023】

In this way, the storage unit 2 of the remote control transmitter stores various data and different individual programs A, B, C, ... For each transmission format, and the control unit 3 is stored for each device to be remotely controlled. Was configured to create each transmission format using these individual programs to remotely control the device.

【0024】

The different transmission formats are individually determined according to the manufacturer and the type of device, and it has been confirmed that there are currently about 100 types of transmission formats.

【0025】

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional remote controller transmitter, when the number of devices to be remotely controlled increases, it is necessary to store the individual program for each transmission format in the storage unit 2, so that a microcomputer having a large storage capacity is required, and the remote controller is used. As the transmitter becomes expensive, there is a problem that it is necessary to design an individual program each time.

【0026】

The present invention solves such a conventional problem, and provides an inexpensive remote control transmitter that can be easily stored in a microcomputer and a transmission system using the remote control transmitter even when the number of devices to be remotely controlled increases. The purpose is.

【0027】

[Means for solving problems]

In order to achieve the above object, the present invention has the following configuration.

【0028】

In the invention according to claim 1 of the present invention, the storage unit stores bit data in a plurality of transmission formats, and the control unit reads the bit data from the storage unit based on the expansion program and the common program for predetermined transmission. A remote control transmitter is configured by creating a format and transmitting this as a remote control signal from the transmitter. Since multiple transmission formats are created using one common program, a device that is remotely controlled. Even if the number of data increases, only the bit data needs to be newly stored, and the data can be easily stored in the microcomputer, the storage capacity is small, and an inexpensive remote controller can be obtained.

【0029】

The invention according to claim 2 is the invention according to claim 1, wherein the control unit confirms the presence or absence of each code forming the transmission format, and then creates the transmission format, and each code in the common program. Based on the presence / absence confirmation program, the control unit confirms the presence / absence of each code, and in the case of a transmission format that does not have a corresponding code, the transmission format can be created quickly by discriminating and branching it. It has the effect of.

【0030】

In the invention according to claim 3, the control unit reads predetermined bit data from the storage unit to create a predetermined transmission format by operating a predetermined operation key of the remote control transmitter according to claim 1, and uses this as a remote controller. A transmission system is configured by transmitting data to a device equipped with a receiver and remotely controlling a predetermined device. It is possible to remotely control a large number of devices and realize an inexpensive transmission system. Has the effect of being able to.

【0031】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.

【0032】

In addition, the same reference numerals are given to the parts having the same configuration as that described in the section of the prior art to simplify the detailed description.

【0033】

(Embodiment) FIG. 1 is a block circuit diagram of a remote controller transmitter according to an embodiment of the present invention. In the same figure, 1 is an operation unit in which a plurality of operation keys are arranged, and 12 is a microcomputer and various electronic components. 13 is a control unit formed by a microcomputer and various electronic components, 4 is a transmission unit such as an infrared light emitting diode, and operation unit 1, storage unit 12, and transmission unit 4 are connected to control unit 13. Has been done.

【0034】

In addition, the storage unit 12 stores an expansion program and a common program for creating a transmission format for remote control of the device, and a plurality of bit data A, B, C, ..., And the control unit 13 expands. Based on the program and the common program, the bit data A, B, C, ... are read from the storage unit 12, and the transmission formats A, B, C, ... As shown in FIG. 5 are created. The remote control transmitter is configured.

【0035】

The bit data A, B, C, ... are the number of bits and time width of each code such as the header, custom code, and data code, or 0 and 1 of each code, as shown in FIG. It is composed of various data such as 10110.

【0036】

Therefore, unlike the conventional individual programs, the common program does not contain various data, and one program can create multiple transmission formats such as transmission formats A, B, C, .... It is configured.

【0037】

Then, by operating the predetermined operation keys of the remote control transmitter configured as described above, the control unit 13 reads the predetermined bit data from the storage unit 12 to create a predetermined transmission format, and uses this as the remote control receiver. The transmission system is configured by transmitting to a provided device and remotely controlling a predetermined device.

【0038】

Hereinafter, the case of creating and transmitting the transmission format A shown in FIG. 5 will be mainly described using the program charts of FIGS. 2 and 3 as an example.

【0039】

First, when a predetermined operation key of the operation unit 1, for example, the "power" key is operated and the "1" key is operated twice, for example, the TV of the manufacturer A is selected, and then, for example, "volume +". When the keys are operated, the control unit 13 performs bit data A in the case of transmission format A and bit data B or C in the case of transmission formats B or C based on the expansion program shown in FIG. , Read from the storage unit 12.

【0040】

Next, based on the common program in FIG. 3, the presence or absence of a header is first checked, and if there is a header as in transmission formats A and B, the control unit 13 determines the HIGH width and LOW width of this header. Output to 4, and the transmitter 4 transmits this as a remote control signal such as infrared rays to a device to be remotely controlled, for example, a television.

【0041】

At this time, if there is no header as in the transmission format C, the control unit 13 determines and branches this, does not create / transmit the header, and proceeds to the next custom code creation program.

【0042】

Then, according to the HIGH and LOW widths of 0 and 1, for example, in the case of transmission format A, after creating a 5-bit custom code of 10110 and a 6-bit data code of 000001 in the same way, The number of bits of the custom code counter is set to 5, the data code counter is set to 6, and each of these codes is sequentially transmitted bit by bit from the transmitter 4.

【0043】

At this time, 1 is subtracted from the counter of each code for each 1-bit transmission. For example, in the case of a 5-bit custom code, the counter becomes 0 when transmitted 5 times, and the next data code is transmitted. Transmission is performed while counting the number of bits of each code.

【0044】

Next, the presence or absence of the inverted custom code is confirmed, and if there is an inverted custom code or inverted data code such as transmission formats A and B, in the same manner, for example, a 5-bit inverted custom code of 01001 or 111110 After creating the 6-bit inverted data code of the above and setting each counter to 5 or 6, each of these codes is sequentially transmitted from the transmission unit 4 while counting the number of bits of each code.

【0045】

At this time, even if there is no inverted custom code or inverted data code as in the transmission format C, the control unit 13 discriminates and branches this, does not create / transmit these codes, and creates the next one. Proceed to the program.

【0046】

Then, send the end code after the inverted data code, check the input of the operation key after this, and if the same "volume +" key is held down, repeat the series of codes from the same header. Send and end the transmission if it is not being operated.

【0047】

Also, at this time, the presence or absence of the repeat code is confirmed, and if a repeat code is provided as in transmission format B, the repeat code is transmitted if there is one, and if not, a series of series from the same header is sent again. Send the code.

【0048】

As described above, for example, the transmission format A is created, and by transmitting this as a remote control signal such as infrared rays from the transmission unit 4, a predetermined device, for example, a television receiver of the manufacturer A receives this and " "Volume +", that is, remote control to increase the sound of the TV is performed.

【0049】

When remotely controlling another manufacturer or device, such as a video of manufacturer B or a television of manufacturer C, when a predetermined operation key of the operation unit 1 is operated, the control unit 13 performs in the same manner as described above. After reading the bit data B, C, ... from the storage unit 12 based on the expansion program, the transmission formats B, C, ... Are created based on the common program, and the transmission unit 4 uses this as a remote control signal. It is configured to send to the device to be operated.

【0050】

As described above, according to the present embodiment, the storage unit 12 stores the bit data A, B, C, ... Of the plurality of transmission formats A, B, C, ..., And the control unit 13 expands. Each transmission format is created using one common program by configuring the remote control transmitter by reading the corresponding bit data from the storage unit 12 and creating a predetermined transmission format based on the program and the common program. Therefore, even if the number of devices to be remotely operated increases, only bit data needs to be newly stored, and it is easy to store in the microcomputer, the storage capacity is small, and an inexpensive remote control transmitter is used. A transmission system can be obtained.

【0051】

After the control unit 13 makes a check whether each code that forms the transmission format, by creating a transmission format, each co in common program based on the presence or absence check program over de, controller 13 each The presence or absence of the code is confirmed, and if the transmission format does not have the corresponding code, it is discriminated and branched, so that the transmission format can be created quickly.

【0052】

[Effect of the invention]

As described above, according to the present invention, it is possible to obtain an advantageous effect that a remote controller transmitter that can be easily stored in a microcomputer, has a small storage capacity, and is inexpensive, and a transmission system using the remote controller transmitter can be obtained.

[Simple explanation of drawings]

[Figure 1]

Block circuit diagram of a remote control transmitter according to an embodiment of the present invention [Figure 2]

Same development program chart [Fig. 3]

Same common program chart [Fig. 4]

Block schematic of conventional remote control transmitter [Fig. 5]

Same transmission format diagram [Fig. 6]

Same bit data diagram [Fig. 7]

Chart of the individual program A [Fig. 8]

Chart of the individual program B [Fig. 9]

Chart of the individual program C [Explanation of symbols]

1 Operation unit 4 Transmitter 12 Memory 13 Control unit