Portable telephone device

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a portable mobile wireless communication device such as a mobile phone device or a cordless telephone device.

【0002】

[Conventional technology]

In the mobile phone device, when there is an incoming call to the mobile phone device, the user is notified that a call has been received by ringing a ringtone. This ringtone has traditionally used one or a combination of simple frequency sounds to notify the user with varying lengths of ringing and stop time. As it becomes more widespread, in order to distinguish one's own mobile phone device from another's mobile phone device, it becomes possible to reproduce note data by changing the length of ringtone and stop time or changing the frequency. It has become feasible to play ringtones with melody.

【0003】

Furthermore, the melody of the ringtone is diversified to suit the taste of the user, and the note data set in the memory by the manufacturer of the mobile phone device in advance, the melody composed by the user, and the melody distribution provided by the carrier are distributed. It is possible to save some melody etc. downloaded from the service as note data in the memory, and if the user selects and sets it in advance, it will be set when there is an incoming call. The function of playing a melody is generally used.

【0004】

In addition, the volume of the sound for notifying the incoming call can be selected and set in advance by several levels according to the user's setting, or the mute can be set and the incoming call is received by other methods, for example, vibration. It is possible to inform.

【0005】

As described above, the user can select a wide variety of sounds to notify the incoming call in advance according to his / her taste, but depending on the environment in which the mobile phone device is used, the incoming call may be received when the ambient noise is large. There is a problem that the sound is buried in noise and difficult to hear, or the user fails to answer the incoming call without noticing the incoming call. On the other hand, when the surroundings are quiet, there is also a manner problem such as making loud and loud music out of place and causing discomfort to the people around.

【0006】

It is possible for the user to make settings according to the environment, such as changing the volume of the ringtone in consideration of the surrounding environment in advance, or muting and setting the vibrator. , If the surrounding environment changes suddenly, it cannot be dealt with, and if the user forgets to set it, this problem still occurs.

【0007】

Japanese Unexamined Patent Publication No. 10-327218 discloses a configuration in which the volume of the incoming call notification sound is automatically adjusted according to the noise level of the ambient sound. However, simply changing the volume does not completely solve the problem of failing to answer incoming calls and the problem of causing discomfort to people around.

【0008】

[Problems to be Solved by the Invention]

The present invention has been made by paying attention to the above circumstances, and an object of the present invention is to answer an incoming call by automatically changing the tone and melody of the ringtone according to the surrounding environment to notify the incoming call. By improving the problem of failing to make a call and ringing a ringtone that suits the usage environment, you can notify the incoming call with a tone or music that is easy for the user to hear, and reduce the discomfort given to people around you, which makes it easier to use. The purpose is to provide mobile phone devices to improve.

【0009】

[Means for solving problems]

In order to achieve the above object, in the present invention, the mobile phone device has an acoustic sound collecting means for collecting ambient sounds and an ambient sound collecting means for analyzing the frequency and power of the sounds collected by the acoustic sound collecting means. Sound analysis means, sound reproduction means for playing a sound or music that notifies an incoming call when there is an incoming call from the other party, melody storage means for storing a plurality of note data of the melody of the ringtone, and melody of the ringtone. Based on the analysis results of the melody selection means to be selected, the tone color selection means to select one or more from a plurality of tones, the ringtone generation means to generate the melody selected with the selected tones, and the ambient sound analysis means. It is possible to change one or both of the tone and melody of the ringtone when there is an incoming call.

【0010】

Furthermore, it is equipped with a protocol analysis means that analyzes the control message received from the base station and outputs the type of control message to the ambient sound analysis means, and has an arbitrary time feature only when a specific message such as an incoming message addressed to the own device is received. By performing the extraction process, it is possible to reduce the current consumption and the processing load when there is no need to receive an incoming call.

【0011】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

【0012】

First, the flow of transmission and reception signals in the mobile phone device 1 and the flow of control messages transmitted and received between the mobile phone device 1 and the base station will be briefly described with reference to FIGS. 2 and 3.

【0013】

FIG. 2 is a system configuration diagram of the mobile phone device 1. As shown in FIG. 2, in the mobile phone device 1, the wireless communication signal sent from the base station (not shown) is input to the wireless transmission / reception circuit 4 via the antenna 3. Here it is converted to an intermediate frequency signal. Then, the received intermediate frequency signal is digitally demodulated by the digital modulation / demodulation means 5, and the digitally demodulated received signal is decoded by the error correction code decoding means 6. Here, the signals decoded and output by the error correction code decoding means 6 include a digital call signal and a digital control signal (message), of which the digital control signal is supplied to the control means 10 for identification. On the other hand, the digital call signal is decoded by the voice code decoding means 7, returned to the analog voice signal by the receiving means 8, and then output. The receiving means includes a D / A converter, an amplifier, a sound reproducing means, and the like.

【0014】

On the other hand, the transmitted voice is converted into a transmitted signal by the transmitting means 9, then compressed by the voice code decoding means 7 by coding, and converted into a digital transmitted signal. Here, the transmitting means includes a microphone, an amplifier, an A / D converter, and the like. This compressed digital transmission signal is encoded by the error correction code decoding means 6 together with the digital control signal (message) generated by the control means 10, and then input to the digital modulation / demodulation means 5 and modulated into an orthogonal modulation signal. To.

【0015】

The modulated signal is converted into a high-frequency signal of a predetermined radio channel by the radio transmission / reception circuit 4, and then transmitted from the antenna 3 to the base station.

【0016】

By the way, the control means 10 is provided with a micro computer as a main control unit, has a protocol analysis means for analyzing and identifying a digital control signal as described above, and further controls each means. In addition to that, it has a user interface and also has means such as creation of a melody of incoming music by a user and storage of the incoming music in a memory, that is, a storage means 12.

【0017】

Further, the power source of the mobile phone device 1 uses the battery power source 18, and is supplied to each means via the power switch 19.

【0018】

When the user presses the power switch 19, the mobile phone device 1 is in a standby state until it receives an incoming signal addressed to its own device after registering its location with the base station. In the standby state, it is in the power saving mode except that it receives the slot periodically assigned to the own device.

【0019】

Next, a general flow example of a control message for communication transmitted and received between the base station and the mobile phone device at the time of an incoming call will be described with reference to FIG. As described above, the control message is included in the transmission / reception signal and is recognized and controlled by the control means 10. Figure 3 shows an example of a general call flow when there is an incoming call on a mobile phone device.

【0020】

In the standby state, the mobile phone device 1 receives an incoming call message from the base station to its own device on the downlink control channel. The mobile phone device 1 transmits an incoming call answering message for an incoming call on the uplink control channel. In response to this, the base station sets up a communication channel and sends a channel allocation message including communication channel allocation information for the mobile phone device 1. When the mobile phone device 1 receives the message of the channel allocation, it sets up the allocated communication channel according to the information in the message of the channel allocation, and starts transmitting the preamble data for synchronizing with the base station. When synchronization is achieved on the traffic channel, messages for service negotiation are exchanged between the base station and the mobile phone device 1. Messages for service negotiation include service connect messages and service connect completion messages. Then, when the service negotiation is established, the mobile phone device 1 starts ringing to notify the user that there is an incoming call. That is, the ringtone starts to ring at the sounder unit 11. When the user responds by pressing a key or the like, the mobile phone device 1 stops ringing, sends a message notifying that the connection is completed, and enters a call state.

【0021】

Now, the first embodiment will be described in detail.

【0022】

FIG. 1 is an explanatory diagram of an embodiment of the present invention, and in FIG. 2, it corresponds to a sounder portion. Further, it will be described with reference to the flowchart showing the embodiment of the present invention of FIG.

【0023】

When the mobile phone device 1 receives an incoming signal addressed to its own device, the protocol analysis means in the control means 10 recognizes the incoming signal (step 100).

【0024】

Then, in the acoustic sound collecting means 20, the ambient sound collected by the microphone is converted into an electric signal, sampled by the A / D converter, converted into digital data one after another, and input to the ambient sound analyzing means 21. In this case, the acoustic sound collecting means 20 may also be used because the acoustic sound collecting means for collecting the transmitted voice of the user during a call is not used during standby.

【0025】

The ambient sound analysis means 21 measures the loudness, that is, the power of the ambient sound from the sampling data of the ambient sound. Since the fluctuation is too large with the instantaneous value, the sampling data is averaged for a certain period and the average level is calculated at regular intervals. Then, the calculated average power value is input to the melody selection means 23 (step 101). Here, the ambient sound analysis means 21 is composed of a CPU, and it is possible to perform calculations with the same CPU as the control means 10.

【0026】

On the other hand, each melody of the ringtone stored in the melody storage means 24 in advance is classified into categories such as a quiet melody (classification No. 1) and a lively melody (classification No. 2), and the classification No. is stored in a storage medium such as a memory. I will do it. This classification may be performed by the manufacturer when setting the melody and stored in the storage medium, or may be subjectively classified by the user and stored in a memo via the control means 10. .. In addition, an appropriate ambient sound level threshold (melody threshold) for determining melody switching is stored in advance.

【0027】

Then, when the control means 10 establishes the negotiation with the base station and receives the ringing start request (step 102), the melody selection means 23 compares the level value of the ambient sound with the melody threshold value stored in advance. .. When the ambient sound level is below the melody threshold, the melody belonging to the quiet melody classification (classification No. 1) is read from the melody storage means 24, the ringtone is played with the melody, and the ambient sound level is higher than the melody threshold. In this case, select a melody (classification No. 2) that belongs to the lively melody classification and read it from the melody storage means 24 (step 103). Then, the ringtone is started to be reproduced by the sound reproduction means 27 with the melody (step 104).

【0028】

Then, when the user answers the incoming call by pressing a key (step 105), the ringing is stopped (step 106), and the call is entered.

【0029】

In this way, the melody of the ringtone is switched according to the loudness of the surrounding sound. In this example, an example is shown in which the incoming melody is changed in two stages, but it is possible to freely increase or decrease the number of categories and the number of threshold values.

【0030】

Next, a method of changing the tone color of the ringtone will be described as the second embodiment.

【0031】

Similar to the first embodiment, when the mobile phone device 1 receives an incoming signal addressed to its own device, the protocol analysis means in the control means 10 recognizes the incoming signal (step 100). The ambient sound collected by the acoustic sound collecting means 20 is converted into digital data one after another by the A / D converter and input to the ambient sound analyzing means 21. The ambient sound analysis means 21 calculates the average power of the ambient sound from the sampling data of the ambient sound at regular intervals and inputs it to the tone color selection means 22 (step 101).

【0032】

On the other hand, each of the tones that can be generated in advance is classified into categories such as quiet tones (classification No. 1) and lively tones (classification No. 2), and the classification No. is stored in a storage medium such as a memory. In addition, the threshold value of the ambient sound level (threshold value for timbre) for determining the switching of the melody is stored in advance.

【0033】

Then, the control means 10 establishes negotiation with the base station, receives the ringing start request (step 102), and the tone color selection means 22 compares the level value of the ambient sound with the tone color threshold value stored in advance. If the ambient sound level is below the timbre threshold, select a timbre (classification No. 1) that belongs to the quiet timbre classification. If the ambient sound level is higher than the timbre threshold, the group of timbres associated with the timbre threshold is selected, that is, the timbre (classification No. 2) that belongs to the lively timbre classification in this example (step 103). .. Then, the ringtone generation means 25 generates a ringtone with the tone selected by the tone color selection means 22, and the sound reproduction means 27 starts playback at an arbitrary level (step 104).

【0034】

Then, when the user answers the incoming call by pressing a key (step 105), the ringing is stopped (step 106), and the call is entered.

【0035】

In this way, the type of ringtone tone is switched according to the loudness of the surrounding sound. In this example, an example is shown in which the ringtone color is changed in two stages, but it is possible to switch to another type of tone by increasing the number of categories and the number of threshold values correspondingly.

【0036】

Further, an example of changing the type of timbre will be described when the ringtone generating means 25 can simultaneously generate, synthesize, and output a plurality of timbres.

【0037】

Similar to the first embodiment, when the mobile phone device 1 receives an incoming signal addressed to its own device, the protocol analysis means in the control means 10 recognizes the incoming signal (step 100). The ambient sound collected by the acoustic sound collecting means 20 is converted into digital data one after another by the A / D converter and input to the ambient sound analyzing means 21. The ambient sound analysis means 21 calculates the average power of the ambient sound from the sampling data of the ambient sound at regular intervals and inputs it to the tone color selection means 22 (step 101).

【0038】

Then, the control means 10 establishes negotiation with the base station, receives the ringing start request (step 102), and the tone color selection means 22 compares the level value of the ambient sound with the tone color threshold value stored in advance. If the ambient sound level is below the timbre threshold, one type of timbre is selected, and the ringtone generation means 25 generates a ringtone. If the ambient sound level is higher than the tone color threshold, two types of tones are selected, and the ringtone generation means 25 generates and synthesizes ringtones with the two types of tones (step 103).

【0039】

Then, using the tone generated by the ringtone generation means 25, the sound reproduction means 27 starts playback at an arbitrary level (step 104).

【0040】

Then, when the user answers the incoming call by pressing a key (step 105), the ringing is stopped (step 106), and the call is entered.

【0041】

In this way, the number of types of ringtone tones is switched according to the loudness of the surrounding sounds. In this example, an example is shown in which the number of ringtones is controlled in two stages, but it is possible to switch to another type of tone by further increasing the number of threshold values or changing the number of corresponding tones.

【0042】

The above is an example of switching the melody of the ringtone and switching the tone of the ringtone according to the loudness of the surrounding sound. It is also possible to control the ringtone by combining and changing each of the melody and the timbre.

【0043】

In the above example, the ringtone and timbre were determined only once based on the average power analyzed at the start of ringing, but the ringtone and timbre are analyzed every cycle for calculating the average level while ringing is continued. It may be varied depending on the result.

【0044】

Next, the third embodiment will be described in detail.

【0045】

When the mobile phone device 1 receives an incoming signal addressed to its own device, the protocol analysis means in the control means 10 recognizes the incoming signal (step 100).

【0046】

Then, the ambient sound collected by the microphone by the acoustic sound collecting means 20 is converted into an electric signal, sampled by the A / D converter, converted into digital data one after another, and input to the ambient sound analyzing means 21. The ambient sound analysis means 21 stores the sampling data of the ambient sound in a buffer or the like for a certain period of time, performs frequency analysis by, for example, a fast Fourier transform, and calculates the frequency component of each band. The Fast Fourier Transform is a commonly used technique for frequency analysis, see "AVOppenheim, RWSchafer: Digital Signal Processing, Prentice-Hall 1975. Translated by Gen Date: Digital Signal Processing, Corona 1978." Explained.

【0047】

Now, let each value of the frequency component of each band when the frequency band that can be analyzed is divided into n be x1, x2 ..., Xn in order from the lowest frequency band. Then, the calculated value of each frequency component is input to the melody selection means 23 (step 101). Here, the ambient sound analysis means 21 can also perform calculations with the same CPU (Central Processing Unit) as the control means 10.

【0048】

In this example, for the sake of simplicity, when n = 2, the details will be explained when the sound is divided into two, that is, when the ambient sound input is analyzed for low-frequency and high-frequency components.

【0049】

Then, the control means 10 establishes negotiation with the base station, and the melody selection means 23 receives a request to start ringing (step 102). The melody selection means 23 compares x1 and x2, which are inputs from the ambient sound analysis means 21. When x1 is larger than x2, that is, when the ambient noise is low and the frequency component is large, the frequency of the selected melody is increased. As a method of increasing the frequency, there are a method of increasing each of the stored note data of the melody by several octaves, and a method of increasing the pitch by increasing the reproduction speed.

【0050】

On the contrary, when x2 is larger than x1, the frequency of the selected melody is lowered. As a method of increasing the frequency, there are a method of increasing each note of the memorized melody by several octaves, and a method of decreasing the pitch by decreasing the reproduction speed (step 103).

【0051】

Then, the melody changed by the melody selection means 23 is generated by the ringtone generation means 25, and the sound reproduction means 27 starts the reproduction at an arbitrary level (step 104).

【0052】

Then, when the user answers the incoming call by pressing a key (step 105), the ringing is stopped (step 106), and the call is entered.

【0053】

In this way, the higher the frequency of the surrounding sound, the higher the pitch of the ringtone melody. When there are many high frequency components, lower the melody height of the ringtone. Since the human ear has a property that it is difficult to hear sounds having similar frequency components, the present invention has the effect of making ringtones easier to hear.

【0054】

In this example, the height of the ringtone melody is changed in two stages, but it is also possible to increase the number of frequency divisions and the height stage in frequency analysis. In that case, the frequency is gradually increased or the reproduction speed is gradually increased according to the number of divisions.

【0055】

Next, a fourth embodiment will be described.

【0056】

Similar to the third embodiment, when the mobile phone device 1 receives an incoming signal addressed to its own device and is recognized by the protocol analysis means in the control means 10 (step 100), the sound is collected by the acoustic sound collecting means 20. The ambient sound is sampled by the A / D converter, converted into digital data one after another, and input to the ambient sound analysis means 21. The ambient sound analysis means 21 stores the sampling data of the ambient sound in a buffer or the like for a certain period of time, performs frequency analysis, and calculates the frequency component of each band.

【0057】

Let each value of the frequency component of each band when divided into n be x1, x2 ..., Xn in order from the lowest frequency band.

【0058】

In this example, for the sake of simplicity, when n = 2, the details will be explained when the sound is divided into two, that is, when the ambient sound input is analyzed for low-frequency and high-frequency components.

【0059】

The energy of the frequency component analyzed by the ambient sound analysis means 21 is input to the tone color selection means 22 (step 101).

【0060】

On the other hand, each of the tones that can be generated in advance is classified into categories such as low tone (classification No. 1) and high tone (classification No. 2), and the classification No. is stored in a storage medium such as a memory.

【0061】

Then, the control means 10 establishes negotiation with the base station, receives a request to start ringing (step 102), and the tone color selection means 22 compares x1 and x2, which are inputs from the ambient sound analysis means 21.

【0062】

When x1 is larger than x2, the tone selection means 22 selects a higher tone.

【0063】

On the other hand, if x2 is larger than x1, select a tone that is classified in a lower category. Then, the ringtone generation means 25 generates and synthesizes an arbitrary melody with the tone selected by the tone color selection means 22 (step 103).

【0064】

Then, using the tone generated by the ringtone generation means 25, the sound reproduction means 27 starts playback at an arbitrary level (step 104).

【0065】

Then, when the user answers the incoming call by pressing a key (step 105), the ringing is stopped (step 106), and the call is entered.

【0066】

In this way, the higher the frequency of the surrounding sound, the higher the pitch of the ringtone melody.

【0067】

When there are many low frequency components, lower the melody height of the ringtone.

【0068】

In this example, the height of the ringtone melody is changed in two stages, but it is also possible to increase the number of frequency divisions and the height stage in frequency analysis.

【0069】

Next, the fifth embodiment will be described in detail.

【0070】

When the mobile phone device 1 receives an incoming signal addressed to its own device, the protocol analysis means in the control means 10 recognizes the incoming signal (step 100).

【0071】

Then, the ambient sound collected by the microphone by the acoustic sound collecting means 20 is converted into an electric signal, sampled by the A / D converter, converted into digital data one after another, and input to the ambient sound analyzing means 21. By the way, in the ambient sound analysis means 21, in order to detect a specific sound set in advance, the sampling data of the ambient sound is analyzed, and the feature parameters are extracted and output (step 101).

【0072】

Specific sounds include, for example, chimes that inform the time of work or school, sounds of cars, trains, machines, railroad crossings, sirens, animal calls, arbitrary sounds, words or speakers. For example, voice.

【0073】

On the other hand, a specific sound to be compared and controlled is analyzed in advance by the same method as that of the ambient sound analysis means 21, feature parameters are extracted, and stored in a memory or the like.

【0074】

The output of the ambient sound analysis means 21 is input to the melody selection unit and the timbre selection unit, compares the characteristic parameters of a specific sound as a comparison control with the characteristic parameters of the surrounding sound, calculates the degree of similarity, and calculates the degree of similarity. When it is determined that the sound matches a specific sound, the melody or timbre is switched (step 103).

【0075】

By the way, in the above embodiment, it is desirable to collect and analyze the ambient sound immediately before ringing the ringtone in order to reduce the power consumption and to collect the optimum ambient sound data. However, if the control means 10 starts collecting and analyzing the ambient sound when the ring tone is sounded, the notification of the incoming call to the user is delayed. In addition, continuous collection and analysis of ambient sound in the standby state increases current consumption.

【0076】

Therefore, only after the protocol analysis means of the control means 10 recognizes the incoming call addressed to the own device, the power of the ambient sound collecting means is turned on to start the sound collecting, and the input data from the sound collecting means is analyzed by the ambient sound analysis unit. To start. Then, when the ringtone generation unit receives the request for starting ringing from the control means 10, the ringtone generation is started. Then, when the user answers the incoming call by pressing a key or the like, the ringtone generation is stopped, and the collection and analysis of the ambient sound is stopped. In the present invention, effective analysis is performed by performing arbitrary time feature extraction processing only when a specific message such as an incoming message addressed to the own device is received, and when it is not necessary to receive an incoming call, the current consumption and processing load are reduced. Allows for reduction.

【0077】

[Effect of the invention]

According to the present invention, by automatically changing the tone and melody of the ringtone according to the surrounding environment to notify the incoming call, the problem of failing to answer the incoming call is improved and the ringtone suitable for the usage environment is sounded. Therefore, it is possible to provide a mobile phone device that reduces discomfort given to people around.

[Simple explanation of drawings]

[Figure 1]

It is explanatory drawing of the mobile phone apparatus of this invention.

[Figure 2]

It is an whole view of the mobile phone apparatus of this invention.

[Fig. 3]

It is a figure which shows the example of the call flow of a base station and a mobile phone apparatus when there is an incoming call.

[Fig. 4]

It is a flowchart explaining the Embodiment of this invention.

[Explanation of symbols]

1 ... mobile phone device, 3 ... antenna, 4 ... wireless transmission / reception circuit, 5 ... digital modulation / demodulation means, 6 ... error correction code decoding means, 7 ... voice code decoding means, 8 ... receiving means, 9 ... transmitting means, 10 ... controlling means, 11 ... sounder section, 12 ... storing means, 13 ... key input means, 14 ... displaying means, 18 ... Battery power, 19 ... Power switch, 20 ... Acoustic sound collection means, 21 ... Ambient sound analysis means, 22 ... Tone selection means, 23 ... Melody selection means, 24. .. Melody storage means, 25 ... ringtone generation means, 26 ... volume conversion means, 27 ... sound reproduction means.