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 provides 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 the vehicle's operation control center and the vehicle, or between the vehicle and the The wireless communication device is used for wireless communication between the two parties. Some devices have the ability to record audio.

[0003] Patent Document 1 describes a conventional automatic call recording device. The system has a recording and playback device that records and plays back data on randomly accessible recording media. The voice recording device is activated 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 audio 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 telephone that uses full duplex communication described in Patent Document 1, The start and end of a conversation can be clearly seen by the status, and the off-hook state can be changed to on-hook state. 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 PTT (Push to Talk) method, which is half-duplex communication, 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 call button on the device is pressed. The audio signal picked up from the microphone 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 waves stop, marking the beginning and end of a series of conversations in which speech is sent and its response is received. Since it is not possible to clearly know 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 its object 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, and a receiving unit for receiving the received signal, the detected device status, and the other device device status information that corresponds to whether the user is in a transmission standby state where he or she can immediately transmit; a signal processing unit for decoding the signal, and a signal processing unit for detecting from the device status information that the other device is not in a transmission standby state and a recording determination unit that 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 received 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 they can send immediately a signal processing step of decoding the signal into device status information associated with the signal; 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 to be stopped.

[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, along with the detected device status and the voice signal. and a signal processing step of decoding the signal into device status information associated with whether the device is in a transmission standby state. 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 device is not in a transmission standby state. [Effects of the Invention]

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

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

[0012] The present invention will be described below based on preferred embodiments with reference to FIGS. 1 to 11. The same or equivalent components and parts shown in the drawings shall be given the same reference numerals, and Duplicate explanations will be omitted where appropriate. Also, the dimensions of the components in each drawing are 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 the configuration of a wireless communication device 100 according to the first embodiment. The receiving device 100 includes a transmitting unit 10, a receiving unit 20, a recording unit 30, a control unit 40, etc. 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 (Central Processing Unit) of a computer. It can be realized using electronic elements and mechanical parts, including the Central Processing Unit (CPU), and software. In terms of software, this is realized by computer programs, etc., but in Figure 1, the Therefore, these function blocks are It is understood by those skilled in the art that the present invention can be realized in various forms by combining 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 audio signal to be transmitted (hereinafter referred to as "transmitted audio") and transmits it as radio waves. ) is input from a signal processing unit 41, which will be described later.

[0015] The receiving unit 20 receives radio waves from the other device and demodulates the audio (hereinafter referred to as "received audio"). The transmitting unit 10 and the receiving unit 20 output a signal relating to the above to the signal processing unit 41. It is assumed that radio waves are transmitted and received in the set frequency band, but the communication method Accordingly, the transmit and receive 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 transmitted voice and The call and received audio are contained 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 unit 45. The signal processing unit 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 processing unit 41 converts the signal input from the receiving unit 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 audio to the other device, the device is hung on a hook (not shown) (hereinafter referred to as The external microphone 52 is in an on-hook state when audio transmission is started. When the user removes the phone from the hook (hereinafter referred to as "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 referred to as 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 is in a state where it can send data to the destination (a state where it is waiting to send data). If a message is sent, the transmission will continue after this. On the other hand, if the device is not in a transmission standby state, 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 wants to transmit, he or she connects the 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 then sets the device in a state where voice transmission can begin. The signal is output from the circuit 52 to the signal processing unit 41 .

[0021] The device state detection unit 42 detects the signal indicating the hook state output from the external microphone 52 (hook state The device state detection unit 42 detects the hook state and the 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 activated by, for example, attaching it to 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 signal, the hook state notification request for requesting the hook state, and the above-mentioned transmission voice signal are transmitted to the transmitter 10. The transmitting unit 10 receives the hook state signal from the signal processing unit 41 and outputs the hook state signal to the 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. to the signal processing unit 41. The signal processing unit 41 outputs the decoded hook state signal of the other device. 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 itself 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 state signals of the own device and the other device stored in the If the condition is such that immediate transmission is not possible, it is determined 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 The recording stop timer is triggered by the end of reception of the radio wave related to the audio signal by 20. The recording determination unit 43 determines whether the recording is 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 to stop recording by the sound unit 30. However, the recording decision unit 43 decides whether 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 or the like. Measure the time.

[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. are.

[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 start recording 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). Based on the reception of the audio signal transmitted from the wireless communication device A by the wireless communication device B, the speaker of 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 audio (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 unit 45 is started (S7). The communication device B, upon completion of reception of the voice signal from the wireless communication device A, 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 (S9).

[0029] The external microphone 52 of the wireless communication device A is attached to a hook by the user. The recording determination unit 43 of the wireless communication device A stops the recording timer that has been started (S10). When the preset time is reached and expired (S11), the recording by the recording unit 30 is stopped. The recording determination unit 43 of the wireless communication device B also starts the recording stop timer unit 44. When the preset time 45 is reached and expires (S13), the recording by the recording unit 30 is stopped. (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 in FIG. 3. In FIG. 3 and FIG. 4, Voice communication is performed between wireless communication device A (own device) and wireless communication device B (other device), and This shows an example of stopping recording by 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 storage unit 44 of the wireless communication device A (S24 )。

[0032] In order to transmit a voice signal, the wireless communication device A receives a signal when 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 audio signal (S25). The hook state of device A is transmitted as a hook state signal to wireless communication device B, A hook state notification request is transmitted to request the hook state of wireless communication device B (S26).

[0033] Wireless communication device B receives the hook state signal and the hook state notification request from wireless communication device A. The hook state signal (off-hook state) of the wireless communication device A is stored in the storage 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 receives the signal from the signal processing unit 41 and sends it to the recording unit 30. The wireless communication device B starts recording the received voice (S31). When the transmitted voice is received, 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 the voice transmission is ended. The recording determination unit 43 of the device A starts a recording stop timer based on the completion of the voice transmission. The wireless communication device B starts measuring the elapsed time (S36). When the reception is completed, the speaker 51 of the wireless communication device B is muted (S37). Then, the recording determination unit 43 activates the recording stop timer to start measuring the elapsed time (S38).

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

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

[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. 52 are both on-hook, so 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 the 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), and 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, If the wireless communication device B is unable to transmit immediately after the time limit is reached, the wireless communication device B 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 silence from being recorded. This allows you to reliably record all of the transmitted audio signals while suppressing noise.

[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 audio while suppressing recording of unnecessary silence.

[0042] FIG. 6 is a sequence diagram showing another recording process procedure by the wireless communication device 100. 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, the wireless communication device A (own device) and wireless communication device B (the other device) and performs voice communication. This shows an example of stopping recording, and recording 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 of 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 completion of the reception of the voice from the wireless communication device A 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). Radio communication device B transmits the hook state signal (off-hook state) of radio communication device B to The communication device B stores the recorded data 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 the hook status signal (off) of the wireless communication device B to the wireless communication device A (S70). The wireless communication device A stores the status (hook state) in the storage unit 44 of the wireless communication device A (S71). The radio communication device A performs the recording stop determination process based on FIG. 5 (S72). In the judgment, both wireless communication devices A and B are in the off-hook state, so recording is stopped. do not.

[0046] The external microphone 52 of the wireless communication device A is attached to a hook by the user. The wireless communication device A is in a hook state (S73). The recording stop determination process is performed based on FIG. 5 ( In step S75, the wireless communication device A determines that the wireless communication device B is off. Recording will not stop because it is on hook.

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

[0048] The wireless communication device B transmits a voice in response to the user receiving the voice from the wireless communication device A. To do this, 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 audio 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 attached to 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 the recording is stopped based on FIG. The recording determination unit 43 of the wireless communication device B performs a determination process (S87). In this judgment, since 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 the hook state signal (on-hook state) of the wireless communication device B. The hook state is notified to the wireless communication device A by transmitting data as a hook state notification (S89). Communication device A receives the hook state notification and transmits the hook state signal (on-hook) of wireless communication device B. The wireless communication device A stores the status (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, the 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 determines that the other party is ready to send immediately and continues recording. As a result, the wireless communication device 100 can transmit a voice signal transmitted from its own device and a voice signal received from the other device. This allows a series of conversations using audio signals to be reliably recorded 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 doing so, the voice received from the wireless communication device A, which is the other device, and the voice transmitted by the own device 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 figure shows a voice communication between wireless communication device A (own device) and wireless communication devices B and C (partner devices). This shows an example 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), and the wireless communication device C The external microphone 52 is also in an on-hook state (S103). The microphone 52 is removed from 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 processing unit 41 of the wireless communication device A performs the hook process of 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. A hook state notification request is sent to request notification of the hook states of communication devices B and C (S1 07)。

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

[0057] The signal processing units 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 performs the and C to send a hook status notification.

[0058] The wireless communication device A receives the hook state notification from the wireless communication devices B and C, and The hook state signals of devices B and C are stored in the memory unit 44 of 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 to The result 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 based on the start of voice transmission by the signal processing unit 41. The wireless communication device B starts recording the message transmitted from the wireless communication device A (S115). When the transmitted audio signal is received, 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 unit 43 of the receiving device C causes the recording unit 30 to start recording (S119).

[0060] When the PTT button of the external microphone 52 is released (S120), the wireless communication device A The voice transmission to the communication devices B and C is terminated (S121). Upon completion of reception of the audio signal from device A, the speaker 51 of wireless communication device B The wireless communication device C mutes the audio signal from the wireless communication device A (S122). When the process 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 attached to a hook by the user. The wireless communication device A is in 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). 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. Stops recording when on hook.

[0063] The wireless communication device A determines in step S126 that the wireless communication devices A, B, and Since both 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 the recording section is stopped (S127).

[0064] The signal processing unit 41 of the wireless communication device A receives the 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 the hook state notification data (S12 8) Wireless communication device B receives the hook state notification and transmits the hook state signal of wireless communication device A. (on-hook state) is stored in the storage unit 44 of the wireless communication device B (S129). Device B performs the recording stop determination process based on FIG. 11 (S130), and Since both Y and C are on-hook, recording is stopped (S131).

[0065] The wireless communication device C receives the hook state notification and transmits the hook state signal (on The wireless communication device C stores the state (on-hook state) in the storage unit 44 (S132). performs the recording stop determination process based on FIG. 11 (S133), and Since all of the C's are on-hook, recording is stopped (S134).

[0066] Although the wireless communication device 100 is described as being three units, this is not limited to this. Even when a group of three or more wireless communication devices simultaneously communicate with each other, The external microphone 52 is notified of its hook state, in other words, whether it is in a transmission standby state or not. , and obtains 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 microphones 52 in the group including the own device are in the off-hook state, as in the determination It will not stop recording if the call is already on-hook, but will stop recording if all the calls are on-hook. When all the wireless communication devices 100 belonging to the group are in a transmission standby state, If there is no audio, recording will stop, so you can record the audio of a series of conversations taking place within a group. You can record from start to finish.

[0068] Although not shown in Figures 6, 7 and 8, the recording stop function can be used in the same way as in Figures 3 and 4. It is also possible to combine this with a stop timer. This prevents unnecessary continuation of recording due to forgetting to do so. (Variation) 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 inoperative state and determines whether the conversation is over. 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 setting may be made by a switch that sets the wireless communication device 100 to a transmission standby state. The microphone etc. may be provided not only in the external microphone 52 but also in the main body of the wireless communication device (not shown) etc. The wireless communication device 100 enters the transmission standby state by accepting an input operation such as voice 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 example shown, the signal processing unit 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 voice. Good too.

[0070] In the above embodiment, an example in which a handheld external microphone 52 is provided is shown. Any microphone that can convert the user's voice into an electrical signal can be used, whether it is a handheld type or a fixed 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. The status of the external microphone connection / disconnection button is detected and correlated with whether the device is in transmission standby mode or not. Furthermore, it is not limited to these, and any other means can be used to associate whether the device is in a transmission standby state or not. For example, a motion sensor may be provided to detect whether the device is in a transmission standby state or not. You can also attach it.

[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 transmitting unit 10, a receiving unit 2, and a 0, a sound recording unit 30, a storage unit 44, and a sound recording determination unit 43. The device state detection unit 42 The device status is detected, and the detected device status is the hook status and the user of the device is immediately The signal processing is performed in accordance with whether the device is in a ready-to-transmit state or not, and the result is output as device status information. 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 state, which is the device state 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 as radio waves. The received 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 audio signal and the received audio 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 signal processing unit 41 stores the decoded hook state information of the other device. The recording unit 30 records the hook state information of the own device and the other device stored in the storage unit 44. The recording decision unit 43 decides whether to continue or stop the sound recording by the transmitting 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 completed. When the message is received, the hook state information of the own device and the other device stored in the storage unit 44 is 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 As a result, the wireless communication device 100 determines that the recording has stopped even if the device is in an on-hook state. By confirming that the recording is complete, the recording can be stopped during an ongoing conversation between wireless communication devices 100. It is possible to properly record the audio of a series of conversations sent and received without having to worry about the sound quality.

[0073] Also, when the transmission of the audio signal by the transmitting unit 10 or the reception of the audio signal by the receiving unit 20 is completed, The recording stop timer 45 is further provided to measure the elapsed time by being activated when the recording is stopped. 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, and the device remains in the off-hook state. This prevents unnecessary continuation of recording.

[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. As a result, the wireless communication device 100 can play back a series of electronic files. This allows for the reproduction of lively conversations, 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 message to the other device via the hook state. 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. 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 device state, a step of recording, a step of storing, and a step of determining whether or not the device is recording. The hook detects the device status and checks whether the detected device status is on-hook or not. The device status information is output in association with whether the device is in a transmission standby state where it can be transmitted immediately. The signal processing step encodes and decodes the audio signal and device status information. The step includes the step of: transmitting the encoded voice signal and the device status information of the own device in the signal processing step; The hook state information is transmitted to the other device as radio waves. The radio wave is received, and the received signal is a received voice signal and a hook that is the device status information of the other device. The recording step outputs the transmitted voice signal and the signal to the signal processing step which decodes the signal into state information. The storage step records the self-device status output from the device status detection step. The hook state information of the other device and the hook state information of the other device decoded by the signal processing step The recording determination step stores the data of the own device and the other device stored in the storage step. Based on the recording state information, it is determined whether to continue or stop recording in the recording step. The sound determination step is a step of transmitting radio waves related to a sound signal in a transmitting step or a step of receiving radio waves related to a sound signal in a receiving step. When the reception of the radio wave related to the audio signal by the amplifier is completed, the own device and the When the hook status information of the remote device is not in the off-hook state (i.e., the When the call 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 immediately transmit. This allows you to record a series of conversations without stopping the recording while sending and receiving audio. , the communicated voice can be properly recorded.

[0077] The above description is based on the embodiments of the present invention. These embodiments are merely examples. 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 partner device and outputs the received signal; A signal processing unit that decodes the received signal into a voice signal and device status information of the other device. With the Department of Science, 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. When not in standby mode, the device can record the audio it sends and the audio it receives from the other device. a recording determination unit that stops the recording; Wireless communication device.

2. a receiving step of receiving radio waves from a partner device and outputting the received signal; A signal processing unit that decodes the received signal into a voice signal and device status information of the other device. Steps 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. When not in standby mode, the device can record the audio it sends and the audio it receives from the other device. a recording determination step of stopping the recording; Wireless communication method.

3. a receiving step of receiving radio waves from a partner device and outputting the received signal; A signal processing unit that decodes the received signal into a voice signal and device status information of the other device. Steps 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. When not in standby mode, the device can record the audio it sends and the audio it receives from the other device. and causing the computer to execute a recording determination step to stop the recording. program.

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