Wireless communication device, wireless communication method, and program

Abstract

To provide a wireless communication device, a wireless communication method, and a program for appropriately recording audio during wireless communication.SOLUTION: A wireless communication device 100 includes a receiving unit that receives radio waves from a counterpart device and outputs the received signal, a signal processing unit that decodes the received signal into an audio signal and device status information that associates the detected device status with whether the counterpart device is in a transmission standby state such that the user of the counterpart device can transmit immediately, and a recording determination unit that detects, from the device status information, that the counterpart device is not in a transmission standby state and stops recording when the device itself is not in a transmission standby state.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to Wireless communication device, wireless communication method, and program Regarding. [Background technology]

[0002] For example, a wireless communication device mounted on a vehicle may be used to communicate between a vehicle operation control center and the vehicle, or between the vehicle and the The wireless communication device is used for wireless communication between the two. Some devices have the ability to record audio.

[0003] Patent Document 1 describes a conventional automatic call recording device. The automatic call recording system has a recording and playback device that records and plays back data on a randomly accessible recording medium. The voice recorder is operated by the detection output of a detection circuit that detects on-hook and off-hook states of the telephone. During the off-hook period, the voice signal of the telephone conversation is recorded on a recording medium by a recording and playback device. Record. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-289003 Summary of the Invention [Problem to be solved by the invention]

[0005] In the automatic call recording device for a full-duplex telephone described in Patent Document 1, You can clearly tell the start and end of a conversation by the status, and you can also switch from off-hook to on-hook. It is possible to record both the transmitted and received voices as a series of conversations over the period from the time the call is received to the time the call is received. On the other hand, wireless communication devices using the half-duplex PTT (Push to Talk) method usually wait for reception. When the radio wave is received, the received sound is output from the speaker. In the case of a wireless communication device, the device is in a transmitting state only while the talk button on the device is pressed. The audio signal picked up from the speaker is transmitted as radio waves, and the call button is released. In such a wireless communication device, the power for transmission and reception is automatically reset for each utterance. The beginning and end of a series of conversations in which a voice is sent and a response is received, as the waves stop Since it is not possible to clearly know the source of the audio, it is not possible to record the audio properly.

[0006] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wireless communication To provide a wireless communication device and a wireless communication method capable of properly recording voice during communication. It says: [Means for solving the problem]

[0007] A wireless communication device according to an embodiment of the present invention receives radio waves from a partner device and outputs the received signal. a receiving unit for receiving the received signal, a voice signal, a detected device status, and a device status information associating whether the user of the device is in a transmission standby state in which the device can immediately transmit; A signal processing unit that decodes the received signal and detects from the device status information that the other device is not in a transmission standby state. A recording determination unit that detects the presence of a voice message and stops recording when the device itself is not in a transmission standby state. can.

[0008] Another aspect of the present invention is a wireless communication method. a receiving step of receiving the signal and outputting the received signal; The detected device status and whether the user of the other device is in a transmission standby state where he or she can transmit immediately a signal processing step of decoding the signal into device status information corresponding to whether the signal is Detect that the other device is not in a transmission standby state and that the own device is not in a transmission standby state and a recording determination step of stopping recording if the recording is not completed.

[0009] Another aspect of the present invention is a program executed by a computer. a receiving step of receiving radio waves from a partner device and outputting the received signal; The signal can be transmitted immediately by the user of the other device, together with the voice signal and the detected device status. a signal processing step for decoding the signal into device status information associated with whether the device is in a transmission standby state or not; and, it is detected from the device status information that the other device is not in a transmission standby state and the own device is and a recording determination step of stopping recording when the transmission standby state is not established. Effect of the Invention

[0010] According to the present invention, audio during wireless communication can be appropriately recorded. [Brief description of the drawings]

[0011] [Figure 1] 1 is a block diagram showing a configuration of a wireless communication device according to a first embodiment. [Diagram 2] FIG. 11 is a sequence diagram showing a procedure of a recording process by the wireless communication device. [Diagram 3] 1 is a sequence diagram showing the procedure of a recording process of a wireless communication device according to embodiment 1. FIG. [Figure 4] FIG. 4 is a sequence diagram showing a continuation of the sequence of FIG. [Diagram 5] 11 is a table listing the recording stop determination process. [Figure 6] 11 is a sequence diagram showing another procedure of recording processing by the wireless communication device. FIG. [Figure 7] FIG. 7 is a sequence diagram showing a continuation of the sequence of FIG. 6. [Figure 8] FIG. 8 is a sequence diagram showing a continuation of the sequence of FIG. 7. [Figure 9] FIG. 11 is a sequence diagram showing the procedure of a recording process by a wireless communication device according to the second embodiment. [Figure 10] FIG. 10 is a sequence diagram showing a continuation of the sequence of FIG. [Figure 11] 11 is a table listing the recording stop determination process according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The present invention will be described below based on preferred embodiments with reference to FIGS. The same or equivalent components and parts shown in the drawings shall be designated by the same reference numerals, and In addition, the dimensions of the components in each drawing are shown in the same order to facilitate understanding. In addition, in each drawing, important matters for explaining the embodiment are shown. Some components that are not included are omitted. (Embodiment 1) FIG. 1 is a block diagram showing a configuration of a wireless communication device 100 according to a first embodiment. The receiving device 100 includes a transmitting unit 10, a receiving unit 20, a recording unit 30, and a control unit 40. The wireless communication device 100 is mounted on a vehicle and performs wireless voice communication between the device and a partner device. Other uses include, but are not limited to, portable devices.

[0013] In terms of hardware, each unit in the wireless communication device 100 is a CPU (CPU This can be realized using electronic elements and mechanical parts, such as the Intelligent Processing Unit (INTRAMATIC), and software. In terms of software, this is realized by computer programs, etc., but in Figure 1, The figure shows the functional blocks that are realized by the hardware. It will be apparent to those skilled in the art that the present invention can be realized in various forms by combining various hardware and software. is understood.

[0014] The transmitter 10 transmits a voice signal based on a modulation method such as FSK (Frequency Shift Keying) modulation. The transmitter 10 modulates the voice to be transmitted (hereinafter referred to as "transmitted voice"). The signal is input from a signal processor 41, which will be described later.

[0015] The receiver 20 receives radio waves from a remote device and demodulates the audio (hereinafter referred to as "received audio"). The transmitting unit 10 and the receiving unit 20 output a signal related to the above to the signal processing unit 41. It is assumed that radio waves are transmitted and received within the set frequency band, but the communication method Accordingly, the transmission and reception frequencies may be variable.

[0016] The recording unit 30 is a data storage device such as a memory card or a hard disk storage device. The recording unit 30 records the voice transmitted by the device itself and the voice received from the other device. The transmitted voice and the received voice that have been signal-processed in the signal processing unit 41 are input to the recording unit. 30 is a series of transmission voice and and received audio in a single electronic file.

[0017] The control unit 40 includes a signal processing unit 41, a device state detection unit 42, a recording determination unit 43, a storage unit 44, and and a recording stop timer section 45. The signal processing section 41 is The signal processing section performs signal processing such as compression encoding and digital conversion on the seed data signal. 41 acquires a user's voice signal from an external microphone 52 and transmits the encoded voice signal The signal processor 41 converts the signal input from the receiver 20 into a received voice signal. The decoded audio signal is output to the speaker 51.

[0018] The external microphone 52 is, for example, a handheld voice input device. When not transmitting voice to the other device, the terminal is hung on a hook (not shown) (hereinafter, When the external microphone 52 starts transmitting voice, the external microphone 52 is in the "on-hook state". When the user removes the phone from the hook (hereinafter referred to as the "off-hook state"), Press the button to use it.

[0019] The external microphone 52 is in an off-hook state when the user removes it from the hook. When the user hangs the phone on the hook, the phone is in the on-hook state. Here, the on-hook state and the off-hook state are collectively called the hook state. When the external microphone 52 is in the on-hook state, the user must immediately When the external microphone 52 is in an off-hook state, the user must immediately In other words, the device status is detected as being in a transmission standby state. If the device is in a state where transmission will continue after this, the device is not in a state where it is waiting to transmit. If this state is detected, it can be said that no further transmission will be performed.

[0020] The external microphone 52 is provided with a PTT type call button (not shown) (hereinafter, referred to as the “PTT button”). When a user wishes to transmit, he or she must first insert an external microphone 52. After removing the handset from the hook and going off-hook, press the PTT button to start signal processing. The control unit 41 starts voice transmission. The signal of pressing the PTT button is transmitted to the external microphone. The signal is output from circuit 52 to signal processing unit 41.

[0021] The device state detection unit 42 detects the hook state of the external microphone 52. The device state detection unit 42 detects the hook state and transmission standby state of the external microphone 52. The hook status signal is sent to the signal processing unit 41 and the storage unit 44 as device status information associated with the The external microphone 52 is provided with a switch (not shown) that is operated by, for example, attaching to and detaching from a hook. The device state detection unit 42 detects whether the switch is on or off. By this, the hook state of the external microphone 52 is detected.

[0022] The signal processing unit 41 detects the hook state of the external microphone 52 input from the device state detection unit 42. The hook state notification request for requesting the hook state and the above-mentioned transmission voice signal are transmitted to the transmission unit 10. The transmission unit 10 receives the hook state signal from the signal processing unit 41 and outputs the hook state The receiving unit 20 transmits a state notification request and a transmission voice signal to the other device. The status signal, the hook status notification request, and the received voice signal are received as radio waves. The signal processor 41 outputs the decoded hook state signal of the other device to the signal processor 41. is output to the storage unit 44.

[0023] The storage unit 44 is a data storage device such as a RAM (Random Access Memory) or a flash memory. The hook status of the device and the hook status of the other device are input. Remember.

[0024] The recording determination unit 43 determines whether the hook state signal of the own device and the other device are stored in the storage unit 44. Based on the hook state signal, the recording unit 30 continues to record the transmitted voice and the received voice. The recording decision unit 43 decides whether to start or stop the radio wave transmission of the audio signal from the transmission unit 10. When the transmission or reception of the radio wave related to the audio signal by the receiving unit 20 is completed, the memory unit 44 The hook status signals of the own device and the other device stored in the If the signal cannot be transmitted immediately, the controller 10 determines whether the recording unit 30 should stop recording.

[0025] The recording determination unit 43 determines whether the transmitting unit 10 transmits radio waves related to the audio signal or whether the receiving unit receives the radio waves related to the audio signal. The timer section 20 stops recording when the reception of radio waves related to audio signals is completed. The recording determination unit 43 determines whether or not a recording has been completed. When the elapsed time measured by the stop timer unit 45 reaches a preset end time, the recording The recording decision unit 43 decides whether or not to stop recording by the sound unit 30 before the end time is reached. If the next transmission or reception starts, the recording stop timer 45 stops measuring the elapsed time. The recording stop timer section 45 stops the recording and clears the elapsed time based on a clock signal, etc. Measure the distance.

[0026] First, a conventional recording function will be described. FIG. 2 is a sequence diagram showing a processing procedure. This example shows how to perform voice communication with device B (the other device) and stop recording by timer operation. is.

[0027] The wireless communication device A removes the external microphone 52 from the hook and presses the PTT button of the external microphone 52. Pressing (S1) starts transmission of an audio signal to wireless communication device B (S2). The recording decision unit 43 of the receiving device A decides whether to record or not based on the start of transmission of the audio signal by the signal processing unit 41. The sound unit 30 starts recording the transmitted voice (S3). The wireless communication device B causes the signal processing unit 41 to Based on the reception of the audio signal transmitted from the wireless communication device A by the wireless communication device B, The recording determination unit 4 of the wireless communication device B cancels the mute of the wireless communication device B and outputs the received voice (S4). 3 causes the recording unit 30 to start recording the received voice (S5).

[0028] When the PTT button of the external microphone 52 is released (S5), the wireless communication device A starts wireless communication. The transmission of the audio signal to the device B is terminated (S6). When the transmission of the voice signal is completed, the recording stop timer section 45 is started (S7). The communication device B, based on the fact that the reception of the voice signal from the wireless communication device A has ended, The speaker 51 of the receiving device B is muted (S8), and the recording decision unit 43 starts the recording stop timer unit 45. Start the app (S9).

[0029] The external microphone 52 of the wireless communication device A is hung on a hook by the user. The recording determination unit 43 of the wireless communication device A stops the recording by stopping the recording timer (S10). When the preset time is reached and expires (S11), the recording unit 30 stops recording. The recording determination unit 43 of the wireless communication device B also stops the recording stop timer unit 41. When the preset time is reached and expires (S13), the recording unit 30 stops recording. (S14).

[0030] FIG. 3 is a sequence diagram showing the procedure of the recording process of the wireless communication device 100 according to the first embodiment. FIG. 4 is a sequence diagram showing the continuation of the sequence of FIG. 3. In FIG. 3 and FIG. 4, A voice communication is performed between wireless communication device A (own device) and wireless communication device B (partner device), and This shows an example of stopping recording in response to notification of a recording status signal.

[0031] First, the external microphone 52 of the wireless communication device A is in an on-hook state (S21). The external microphone 52 of the wireless communication device B is also in an on-hook state (S22). The external microphone 52 is removed from the hook and goes into an off-hook state (S23), and the wireless communication device A The hook state signal (off-hook state) is stored in the memory unit 44 of the wireless communication device A (S24 )。

[0032] In order to transmit a voice signal, the wireless communication device A detects that the PTT button of the external microphone 52 is pressed. The signal processing unit 41 of the wireless communication device A performs wireless communication before transmitting the voice signal (S25). The hook state of the device A is transmitted as a hook state signal to the wireless communication device B, A hook state notification request is transmitted to request the hook state of wireless communication device B (S26).

[0033] The wireless communication device B receives the hook state signal and the hook state notification request from the wireless communication device A. The hook state signal (off-hook state) of the wireless communication device A is stored in the memory unit 44 of the wireless communication device B. The signal processing unit 41 of the wireless communication device B stores the hook-shaped The state signal is transmitted to the wireless communication device A as a hook state notification by data transmission (S28). The wireless communication device A receives the hook state notification from the wireless communication device B and The hook state signal (off-hook state) is stored in the memory unit 44 of the wireless communication device A (S29). 。

[0034] The wireless communication device A starts transmitting audio to the wireless communication device B (S30). The recording determination unit 43 of A sends the signal to the recording unit 30 based on the start of voice transmission by the signal processing unit 41. The wireless communication device B starts recording the received voice (S31). When the wireless communication device B receives the transmitted voice, the speaker 51 of the wireless communication device B is unmuted (S32). The recording determination unit 43 of the wireless communication device B causes the recording unit 30 to start recording the transmitted and received voice (S3 3)。

[0035] When the wireless communication device A detects the release of the PTT button of the external microphone 52 (S34), The wireless communication device B is notified of the end of the voice transmission (S35) and ends the voice transmission. The recording determination unit 43 of the device A starts a recording stop timer based on the end of the voice transmission. The measurement of the elapsed time is started (S36). Based on the completion of the reception, the speaker 51 of the wireless communication device B is muted (S37). The recording determination unit 43 then starts a recording stop timer to begin measuring the elapsed time (S38).

[0036] The external microphone 52 of the wireless communication device A is hung on a hook by the user. The wireless communication device A is put into a hook state (S39). The status (lock state) is stored in the storage unit 44 of the wireless communication device A (S40).

[0037] The wireless communication device A performs a recording stop determination process based on FIG. 5 (S41). FIG. 5 is a table listing the stoppage determination processes. When the external microphone 52 of the wireless communication device A and the external microphone 52 of the wireless communication device B are in an off-hook state, the recording is continued. When one of the external microphones 52 is in an off-hook state, recording continues. When both the A and B external microphones 52 are in the on-hook state, recording is stopped.

[0038] Returning to FIG. 4, the storage unit 44 of the wireless communication device A stores the external microphones of the wireless communication devices A and B. Since both of the handsets 52 are stored as being on-hook, the wireless communication device A starts recording. Then, the recording stop timer started in step S36 is stopped (S4 3)。

[0039] The signal processing unit 41 of the wireless communication device A receives a hook state signal (on-hook state) of the wireless communication device A. The hook state (hook state) is notified to the wireless communication device B by transmitting data as a hook state notification (S44). The communication device B transmits the hook state signal (on-hook state) of the wireless communication device A to the wireless communication device B. The result is stored in the storage unit 44 (S45). The wireless communication device B performs the recording stop determination process based on FIG. (S46), the storage unit 44 of the wireless communication device B stores both the wireless communication devices A and B. Since the on-hook state is also stored, recording is stopped (S47). Then, wireless communication device B stops the recording stop timer that was started in step S38 (S48).

[0040] The wireless communication device A ends the voice transmission and further puts the external microphone 52 into an on-hook state, in other words. When the wireless communication device B is in a state where it cannot transmit immediately if ... If the external microphone 52 is also on-hook, recording is immediately stopped. Device A can stop recording before the recording stop timer expires, preventing unnecessary recording of silence. This allows for the recording of all transmitted audio signals without compromising quality.

[0041] In addition, in the wireless communication device B, the external microphone 52 of the wireless communication devices A and B is on-hook. By stopping recording before the recording stop timer expires based on the occurrence of a lock state, To reliably record all received voices while suppressing recording of unnecessary silent parts.

[0042] FIG. 6 is a sequence diagram showing another procedure of recording processing by the wireless communication device 100. FIG. 7 is a sequence diagram showing a continuation of the sequence of FIG. 6. FIG. 8 is a sequence diagram showing a continuation of the sequence of FIG. 6, 7, and 8, a wireless communication device A (own device) and wireless communication device B (the other device) communicate with each other by notification of the hook status signal. This shows an example of stopping recording, and records a series of conversations sent and received between the device and the other device. This is the case when there is a sound.

[0043] The processes from step S51 to step S65 shown in FIG. 6 are the same as those in step S shown in FIG. The process is the same as steps S21 to S35, and the description will be omitted for the sake of brevity. Based on the fact that the reception of the voice from the wireless communication device A is completed in step S65, the wireless communication device B Based on this, the speaker 51 of the wireless communication device B is muted (S66).

[0044] The external microphone 52 of the wireless communication device B is removed from the hook and goes into an off-hook state (S 67). The wireless communication device B transmits the hook state signal (off-hook state) of the wireless communication device B to the The communication device B stores the recorded information in the storage unit 44 (S68). The wireless communication device B performs a stop determination process (S69). Since both wireless communication devices A and B are off-hook, recording does not stop.

[0045] The wireless communication device B transmits the hook state signal (off-hook state) of the wireless communication device B to the wireless communication device B. The wireless communication device A transmits a hook status signal (off) of the wireless communication device B to the wireless communication device A (S70). The wireless communication device A stores the state (hook state) in the storage unit 44 of the wireless communication device A (S71). The wireless communication device A performs a recording stop determination process based on FIG. 5 (S72). In the judgment, both wireless communication devices A and B are off-hook, so recording is stopped. do not.

[0046] The external microphone 52 of the wireless communication device A is hung on a hook by the user. The wireless communication device A is put into a hook state (S73). The recording stop determination process is performed based on FIG. In step S75, the wireless communication device A determines that the wireless communication device B is off. Do not stop recording because it is on hook.

[0047] The signal processing unit 41 of the wireless communication device A receives a hook state signal (on-hook state) of the wireless communication device A. The hook state (hook state) is notified to the wireless communication device B by transmitting data as a hook state notification (S76). The communication device B receives the hook state notification and transmits the hook state signal (on-hook) of the wireless communication device A. The state) is stored in the storage unit 44 of the wireless communication device B (S77), and recording stop determination is made based on FIG. The wireless communication device B performs the process (S78). Device B does not stop recording because it is off-hook.

[0048] The wireless communication device B transmits voice in response to the voice reception from the wireless communication device A. In order to transmit the signal, the PTT button of the external microphone 52 of the wireless communication device B is pressed (S79). The communication device B starts transmitting audio to the wireless communication device A (S80). When the wireless communication device A receives the audio signal transmitted from the wireless communication device B, the speaker 51 of the wireless communication device A Unmute (S81).

[0049] The wireless communication device B starts wireless communication by releasing the PTT button of the external microphone 52 (S82). The wireless communication device A ends the voice transmission from the wireless communication device B (S83). When the reception of the voice signal is completed, the speaker 51 of the wireless communication device A is muted. (S84).

[0050] The external microphone 52 of the wireless communication device B is hung on a hook by the user. The wireless communication device B is in a hook state (S85). The recording status is stored in the storage unit 44 of the wireless communication device B (S86), and recording is stopped based on FIG. The recording determination unit 43 of the wireless communication device B performs a determination process (S87). In the judgment, since the wireless communication devices A and B are on-hook, it is judged that recording should be stopped, Recording in the recording unit 30 is stopped (S88).

[0051] The signal processing unit 41 of the wireless communication device B receives a hook state signal (on-hook state) of the wireless communication device B. The hook state (hook state) is notified to the wireless communication device A by transmitting data as a hook state notification (S89). The communication device A receives the hook state notification and transmits the hook state signal (on-hook) of the wireless communication device B. The wireless communication device A stores the state (state) in the storage unit 44 of the wireless communication device A (S90). Based on the above, a recording stop determination process is performed (S91), and both wireless communication devices A and B are turned on. Since the recording is in a locked state, recording is stopped (S92).

[0052] The wireless communication device A ends the voice transmission and further puts the external microphone 52 into an on-hook state, in other words. If the communication partner is unable to transmit immediately, the recording stop determination in step S75 is made. When the external microphone 52 of a certain wireless communication device B is in an off-hook state, recording should not be stopped. In other words, the system will continue recording assuming that the other party is ready to transmit immediately. Thus, the wireless communication device 100 can transmit a voice signal and receive a voice signal from the other device. This makes it possible to reliably record a series of conversations using audio signals from start to finish.

[0053] In addition, in the wireless communication device B, the external microphone 52 of the wireless communication devices A and B is on-hook. When the recording is stopped, the recording is stopped by the recording stop determination in step S87. By this, the voice received from the wireless communication device A, which is the other device, and the voice transmitted by the device itself are It is possible to reliably record a series of voice conversations from start to finish. (Embodiment 2) FIG. 9 is a sequence diagram showing the procedure of the recording process by the wireless communication device 100 according to the second embodiment. FIG. 10 is a sequence diagram showing a continuation of the sequence in FIG. 9. The present invention relates to a wireless communication device A (own device) and wireless communication devices B and C (partner devices) for voice communication. This shows an example of wireless communication in which the recording is stopped by receiving a hook status signal. Devices A, B, and C belong to the same group and can simultaneously communicate with each other through voice communication. Share your conversations.

[0054] First, the external microphone 52 of the wireless communication device A is in an on-hook state (S101). The external microphone 52 of the wireless communication device B is also in an on-hook state (S102). The external microphone 52 of the wireless communication device A is also in an on-hook state (S103). The microphone 52 is taken off the hook and goes into an off-hook state (S104), and the wireless communication device A The hook state signal (off-hook state) is stored in the storage unit 44 of the wireless communication device A (S105 )。

[0055] In the wireless communication device A, the PTT button of the external microphone 52 is pressed for voice communication ( S106). The signal processor 41 of the wireless communication device A hooks up the wireless communication device A before transmitting the voice. The status signal (off-hook state) is transmitted to the wireless communication devices B and C, and the wireless A hook state notification request is transmitted to request notification of the hook states of communication devices B and C (S1 07)。

[0056] The wireless communication device B receives the hook state signal and the hook state notification request from the wireless communication device A. The hook state signal (off-hook state) of the wireless communication device A is stored in the memory unit 44 of the wireless communication device B. (S108). The wireless communication device C also stores the hook state signal from the wireless communication device A. and a hook state notification request is received, and the hook state signal (off-hook state) of wireless communication device A is The information is stored in the storage unit 44 of the wireless communication device C (S109).

[0057] The signal processors 41 of the wireless communication devices B and C respectively receive the hook state signals of their own devices as hook signals. The network status notification is sent to the wireless communication device other than the own device by data transmission (S110). In step S110, for example, the signal processing unit 41 of the wireless communication device B and C sends a hook state notification.

[0058] The wireless communication device A receives the hook state notification from the wireless communication devices B and C, and wirelessly The hook state signals of the devices B and C are stored in the memory unit 44 of the wireless communication device A (S111). The wireless communication device B receives the hook state notification from the wireless communication device C and The hook state signal is stored in the storage unit 44 of the wireless communication device B (S112). receives a hook state notification from wireless communication device B and transmits the hook state signal of wireless communication device B The information is stored in the storage unit 44 of the wireless communication device C (S113).

[0059] The wireless communication device A starts transmitting audio to the wireless communication devices B and C (S114). The recording determination unit 43 of the wired communication device A determines whether or not to record the voice based on the start of voice transmission by the signal processing unit 41. The wireless communication device B starts recording the information transmitted from the wireless communication device A (S115). When the wireless communication device B receives the audio signal, the speaker 51 of the wireless communication device B is unmuted and the audio is output. Then, the recording determination unit 43 of the wireless communication device B causes the recording unit 30 to start recording (S116). (S117). When the wireless communication device C receives the voice signal transmitted from the wireless communication device A, Then, the speaker 51 of the wireless communication device C is unmuted and audio is output (S118). The recording determination section 43 of the receiving device C causes the recording section 30 to start recording (S119).

[0060] When the PTT button of the external microphone 52 is released (S120), the wireless communication device A The wireless communication device B ends the voice transmission to the communication devices B and C (S121). Upon completion of reception of the audio signal from device A, the speaker 51 of the wireless communication device B The wireless communication device C mutes the audio signal received from the wireless communication device A (S122). When the communication is completed, the speaker 51 of the wireless communication device C is muted (S123). 。

[0061] The external microphone 52 of the wireless communication device A is hung on a hook by the user. The wireless communication device A is put into a hook state (S124). The hook state is stored in the storage unit 44 of the wireless communication device A (S125).

[0062] The wireless communication device A performs the recording stop determination process based on FIG. 11 (S126). FIG. 11 shows 11 is a table listing the recording stop determination process according to the second embodiment. At least one of the external microphones 52 of the wireless communication devices A, B, and C is off-hook. When the external microphones 52 of the wireless communication devices A, B, and C are all turned on, recording continues. Stop recording when on hook.

[0063] The wireless communication device A determines in step S126 that the wireless communication devices A, B, and Since both of the terminals A and C are on-hook, the recording unit 30 of the wireless communication device A determines to stop recording. The recording in is stopped (S127).

[0064] The signal processing unit 41 of the wireless communication device A receives a hook state signal (on-hook state) of the wireless communication device A. The hook state is notified to the wireless communication devices B and C by transmitting data as a hook state notification (S12 8) The wireless communication device B receives the hook state notification and transmits the hook state signal of the wireless communication device A. (on-hook state) is stored in the storage unit 44 of the wireless communication device B (S129). The wireless communication devices A, B and B perform the recording stop determination process based on FIG. 11 (S130). Since both C and D are on-hook, recording is stopped (S131).

[0065] The wireless communication device C receives the hook state notification and transmits the hook state signal (off) of the wireless communication device A. The wireless communication device C stores the state (on-hook state) in the storage unit 44 (S132). 11, the wireless communication devices A, B and Since all of the terminals C are on-hook, recording is stopped (S134).

[0066] Although the wireless communication device 100 is described as being three units, the number of units is not limited to three. When three or more wireless communication devices are conducting simultaneous voice communication in a group, The external microphone 52 is notified of its hook state signal, in other words, whether it is in a transmission standby state or not. , whether devices other than the own device are in a state where they can transmit immediately.

[0067] The wireless communication device 100 stops recording in steps S126, S130, and S133. When the external microphone 52 in the group including the own device is in the off-hook state, as in the determination It does not stop recording when all are on-hook, but stops recording when all are on-hook. When all the wireless communication devices 100 belonging to the group are in a transmission standby state, If the device is not connected to the network, recording will stop. You can record from start to finish with complete confidence.

[0068] Although not shown in Figs. 6, 7 and 8, the recording stop is performed in the same manner as in Figs. 3 and 4. It is also possible to combine this with a stop timer. This prevents unnecessary continuation of recording due to forgetting to stop recording. (Modification) In the above embodiment, the wireless communication device 100 waits for transmission in response to a hook state signal from the external microphone 52. In the above example, the wireless communication device 100 detects whether the wireless communication device 100 is in an active state and determines whether the conversation is ended. Whether the device is in a transmission standby state or not can be determined by, for example, the on / off state of a switch operated by the user. The transmission standby state of the wireless communication device 100 may be set by a switch. The microphone or the like may be provided not only in the external microphone 52 but also in the main body of the wireless communication device (not shown) or the like. The transmission standby state of the wireless communication device 100 is initiated by receiving an input operation such as a voice input from the user. It may be something that is set.

[0069] In the above embodiment, the pressing of the PTT button provided on the external microphone 52 is used as a trigger. In the above example, the signal processor 41 starts transmission. The trigger for this is not limited to this. For example, a switch with the same function as the PTT button, etc. The microphone 52 may be provided not only in the external microphone 52 but also in the main body of the wireless communication device (not shown), or The signal processing unit 41 is configured to start transmission upon receiving an input operation such as a voice. Good too.

[0070] In the above embodiment, an example in which a handheld external microphone 52 is provided is shown. As long as the microphone can convert the user's voice into an electrical signal, it can be a handheld or stationary type. The wireless communication device 100 and the external microphone 52 may be connected by wire. Regardless of whether it is wireless or not, the connection / disconnection button between the wireless communication device 100 and the external microphone can be used as a hook. Detects the status of the external microphone connect / disconnect button and associates it with whether it is in transmission standby or not. Furthermore, the present invention is not limited to these, and may be any means capable of associating whether the device is in a transmission standby state or not. For example, a motion sensor may be provided to detect whether the user's motion is in a transmission standby state or not. It may be attached.

[0071] Next, features of the wireless communication device and the wireless communication method according to the embodiment and the modified example will be described. 。

[0072] The wireless communication device 100 includes a device state detection unit 42, a signal processing unit 41, a transmission unit 10, a reception unit 2, and a 0, a sound recording unit 30, a storage unit 44, and a sound recording determination unit 43. The hook status is detected, and the user of the device immediately sends The signal processing unit 12 outputs the corresponding device status information in association with whether the device is in a ready-to-transmit state or not. The unit 41 encodes and decodes the audio signal and the device status information. The signal processor 41 encodes the transmitted voice signal and the hook status, which is device status information of the device itself. The receiving unit 20 receives radio waves from the other device and transmits the received information to the other device. The signal is decoded into a received voice signal and hook status information, which is device status information of the other device. The recording unit 30 outputs the transmitted voice signal and the received voice signal to the signal processing unit 41. The storage unit 44 stores the hook state information of the device itself output from the device state detection unit 42, The hook state information of the other device decoded by the signal processing unit 41 is stored. The recording unit 30 records the hook state information of the own device and the other device stored in the memory unit 44. The recording decision unit 43 decides whether to continue or stop recording by the transmission unit 10. The transmission of radio waves related to the voice signal or the reception of radio waves related to the voice signal by the receiving unit 20 is terminated. At that time, the hook state information of the own device and the other device stored in the storage unit 44 are both in a transmission standby state. When the call is not in the off-hook state (i.e., when the call is in the on-hook state), the recording unit 30 This allows the wireless communication device 100 to determine whether recording has stopped even if the device is on-hook. By checking that the recording is complete, recording can be stopped during an ongoing conversation between wireless communication devices 100. It is possible to properly record a series of transmitted and received audio conversations without having to

[0073] Also, when the transmission of the voice signal by the transmitting unit 10 or the reception of the voice signal by the receiving unit 20 is completed, The recording stop timer unit 45 is further provided to measure the elapsed time by being started in response to the recording stop. When the elapsed time reaches a preset time, the recording determination unit 43 of the wireless communication device 100 Then, the recording unit 30 stops recording. The microphone 52 is left off the hook, causing the device to remain in the off-hook state. This prevents recording from continuing unnecessarily.

[0074] The recording unit 30 also records the transmitted and received voices included in a series of conversations from the start of recording. After recording, the recording stops, so a series of conversations can be stored in one electronic file. In this way, the wireless communication device 100 can reproduce a series of electronic files by playing one electronic file. This makes it possible to reproduce conversations with a clearer tone, thereby improving convenience.

[0075] The signal processor 41 also transmits a signal requesting notification of hook state information of the other device. This causes the wireless communication device 100 to transmit the The hook status information is received from the other device by a signal requesting notification of information, and Based on the hook state of the other device, it is possible to determine whether the two devices are ready to immediately transmit audio to each other. can be done.

[0076] The wireless communication method includes a device state detection step, a signal processing step, a transmission step, and a reception step. The device includes a step of detecting a state of the device, a step of recording, a step of storing, and a step of determining whether or not the device is recording. The hook-up detects the device status and checks whether the device is in a hook state or not. The information is output as device status information in association with whether the device is in a transmission standby state where it can transmit immediately. The signal processing step encodes and decodes the audio signal and the device status information. The step includes: processing the transmitted voice signal encoded in the signal processing step and the device status information of the own device; The hook state information is transmitted to the other device as radio waves. The radio wave is received, and the received signal is a hook that is a received voice signal and device status information of the other device. The recording step outputs the transmitted voice signal and the The storage step records the self-contained information output from the device status detection step and the received voice signal. The hook status information of the other device decoded by the signal processing step, The recording decision step is to determine whether the frequency of the own device and the other device stored in the storage step is equal to or smaller than the frequency of the other device. Based on the record state information, the recording step determines whether to continue or stop recording. The sound determination step is a step of transmitting radio waves related to a sound signal in a transmitting step or a receiving step. When the reception of radio waves related to the audio signal by the step 10 is completed, the own device and When the hook status information of the remote device is not in the off-hook state (i.e., the transmission standby state) When the handset is in an on-hook state, the recording step determines whether to stop recording. According to the communication method, both the transmitting and receiving users are in an on-hook state where they cannot transmit immediately. This allows you to record a series of conversations without stopping the recording , the communicated voice can be properly recorded.

[0077] The above describes the embodiments of the present invention. It is understood that various modifications and variations are possible within the scope of the invention, and that such modifications and variations are within the scope of the invention. It will be understood by those skilled in the art that such modifications and variations are within the scope of the present invention. The descriptions and drawings herein should be treated as illustrative rather than restrictive. [Explanation of symbols]

[0078] 10 transmitting unit, 20 receiving unit, 30 recording unit, 41 signal processing unit, 42 device state detection unit, 43 recording determination unit, 44 memory unit, 45 recording stop timer unit, 100 wireless communication device.

Claims

1. A receiving unit that receives radio waves from a remote device and outputs the received signal; The received signal is a voice signal, a detected device status, and a user of the other device. The device status information corresponds to whether the device is in a standby state and can transmit immediately, and the signal to be decoded is A signal processing unit; It is detected from the device status information that the other device is not in a transmission standby state and the own device is not in a transmission standby state. and a recording determination unit that stops recording when the device is not in a reception standby state. Wireless communication device.

2. A receiving step of receiving radio waves from a partner device and outputting the received signal; The received signal is a voice signal, a detected device status, and a user of the other device. The device status information corresponds to whether the device is in a standby state and can transmit immediately, and the signal to be decoded is a signal processing step; It is detected from the device status information that the other device is not in a transmission standby state and the own device is not in a transmission standby state. and a recording determination step of stopping recording when the communication is not in a standby state. A wireless communication method.

3. A receiving step of receiving radio waves from a partner device and outputting the received signal; The received signal is a voice signal, a detected device status, and a user of the other device. The device status information corresponds to whether the device is in a standby state and can transmit immediately, and the signal to be decoded is a signal processing step; It is detected from the device status information that the other device is not in a transmission standby state and the own device is not in a transmission standby state. A recording determination step of stopping recording when the device is not in a communication standby state. to make program.

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