JPH10322232A - Sound output control method for radio receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the user to hear a radio broadcast program such as traffic information and news after the end of a speech even when a phone call arrives during the reception of the radio broadcast program such as traffic information and news and the program is muted. SOLUTION: The radio receiver is provided with a sound memory 19 that stores radio sound and with a recording/reproducing section 20 that writes the radio sound to the sound memory and read the sound therefrom, and a system controller 17 (1) mutes a radio sound at the arrival of a phone call, controls the recording/reproducing section 20 to write the radio sound to the sound memory 19, (2) releases muting of the radio sound at the end of the phone call speech and controls the recording/reproducing section 20 to terminate the write of the radio sound to the sound memory 19, and (3) controls the recording/reproducing section 20 to reproduce the radio sound stored in the voice memory 19 on a reproduction request.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound output control method for a radio receiver, and more particularly to a sound output control method for a radio receiver which mutes radio sound when a telephone call arrives and cancels the mute when the call ends.

[0002]

2. Description of the Related Art Some in-vehicle radio receivers have a telephone mute function. This telephone mute function is to mute the sound output of the radio at the time of receiving an incoming call from a car phone or a mobile phone even during reception of the radio. According to this function, the interior of the vehicle can be automatically set to a quiet state when an incoming call is received, so that there is an advantage that a call with the other party can be smoothly performed.

[0003]

However, the conventional telephone mute function sometimes misses an important radio broadcast, for example, a radio broadcast such as traffic information or news. That is, if there is an incoming call during reception of a radio broadcast such as traffic information or news, the sound output from the radio receiver is muted, and as a result, the radio broadcast is missed and cannot be heard again. In view of the above, an object of the present invention is to make it possible to listen to a radio broadcast such as traffic information and news after a call is terminated even if a call is received and a mute is received during reception of a radio broadcast such as traffic information or news. is there.

[0004]

A memory for storing a radio sound in a radio receiver for muting a radio sound when an incoming call is received and canceling the mute when the call ends.
A recording / reproducing unit for writing and reading radio sound to / from the memory; a unit for instructing reproduction of the radio sound stored in the memory; a muting of the radio sound when a call is received; Is written into the memory, the mute of the radio sound is released when the telephone call ends, the recording / reproducing unit is controlled to end the writing of the radio sound to the memory, and the recording / reproducing unit is controlled by the reproduction instruction. This is achieved by a radio receiver having a control unit that reproduces and outputs radio sound stored in the memory.

[0005]

FIG. 1 is a block diagram of a radio receiver according to the present invention. In the figure, 11 is an antenna, 12 is a radio unit for receiving / demodulating and outputting a selected broadcast signal, 13 is a sound selection unit for selecting output sound, and 14 is a radio sound from the incoming call to the end of the call. A mute circuit for muting the output, 15 is an amplifier, 16 is a speaker, 17 is a system controller having a microcomputer configuration for controlling the entire system, 18 is an operation unit, which has various keys such as a reproduction key 18a, and a display unit. An audio memory 20 for storing radio sound, 20 is for recording / recording radio sound in the audio memory.
A voice recording / playback unit for controlling playback. An automobile telephone 21 outputs an audio mute start signal AMST when an incoming call arrives, and outputs an audio mute end signal AMSP when a call is disconnected (end of call).

The voice recording / reproducing unit 20 includes an AD converter 20a for converting radio sound into digital, a read / write control unit 20b for storing digital radio sound in the sound memory 19 and reading out radio sound from the sound memory, Digital-to-analog converter 20c that converts analog radio sound to analog
It has.

FIG. 2 is a processing flow of audio output control of the system controller 17 in the radio receiver. Normally, the audio selection unit 13 is in the illustrated switch state, the mute circuit 14 is in the mute off state, and the radio audio received by the radio unit 12 is amplified by the amplifier 15 and output from the speaker (radio reception). output,
Step 101). At the time of such radio reception output, it is checked whether or not the reproduction of the voice stored in the voice memory 19 has been instructed (step 102).
It is checked whether T has been received (step 103). If the audio mute start signal AMST is not received,
Continue to output radio audio from the speaker.

However, the audio mute start signal AM
If ST is received (incoming), the system controller 17
Generates a mute signal MUT and mutes the radio sound by the mute circuit 14. Further, the system controller 17 sends a recording start signal REC to the voice recording / reproducing unit 20.
Is transmitted, and radio sound is recorded in the sound memory 19 by the sound recording / reproducing unit 20 (step 104). That is, the audio recording / reproducing unit 20 converts the analog radio sound into digital by the recording start signal REC, and records the digital sound sequentially from the head of the audio memory 19. As described above, the radio sound is muted during the incoming call and the call, and the radio sound is muted, and the radio sound during that time is recorded in the sound memory 19. Then, the system controller 1
7 is an audio mute end signal AMS when the call ends.
It is monitored whether P has been received (step 105). If the audio mute end signal AMSP has not been received, the muting of the radio sound and the recording of the radio sound in step 104 are continued.

In step 105, if the audio mute end signal AMSP is received, the system controller 17 cancels the mute and sets the recording stop signal S
The TP is output (step 106). Upon receiving the recording stop signal STP, the audio recording / reproducing unit 20 stops recording and stores the memory address where the last digital audio was recorded. Thereafter, the system controller 17 returns to the beginning and restarts the output of the radio sound from the speaker.
In this state, when the reproduction key 18a on the operation unit 18 is pressed to reproduce the radio sound recorded in the sound memory 19, the system controller 17 issues a reproduction start signal PL.
Y and outputs a memory radio audio selection signal MMS. The audio selection unit 13 is switched to the state indicated by the dotted line upon receiving the memory radio audio selection signal MMS. The voice recording / reproducing unit 20 starts reproducing the radio voice stored in the voice memory 19 in response to the generation of the reproduction start signal PLY.
That is, the radio sound is reproduced from the head address of the sound memory 19 to the last address where the digital sound is recorded. The audio selecting unit 13 selectively outputs the reproduced radio audio from the audio memory 19 and outputs the reproduced radio audio from the speaker (step 107).

Thereafter, the reproduction of the radio sound recorded in the sound memory is continued until the reproduction of the radio sound stored in the sound memory is completed (step 108). When the reproduction is completed, that is, when the output of the last recorded digital audio data is completed, the audio recording / reproducing unit 20 notifies the system controller 17 of a reproduction completion signal PLED. As a result, the system controller 17 returns to step 103 and repeats the subsequent processing. As described above, the radio sound recorded in the sound memory 19 can be heard from the time when the call is received by the automobile telephone 21 until the end of the call.

In the above, the present invention has been described for a case where a call arrives at an automobile telephone. However, the present invention can be applied to a case where a call arrives at a portable telephone. That is, the portable telephone is provided with a function of wirelessly transmitting the audio mute start / end signals AMST and AMSP, and a radio unit for receiving these signals is provided on the system controller side. With this configuration, the same radio sound output control as that of the mobile phone can be performed on the mobile phone. In the above description, the audio mute start / end signals AMST and AMSP are output due to the incoming call and the call disconnection (end of call). However, these signals may be transmitted by turning on / off the hook switch of the telephone. it can. In the above description, the radio sound is converted to digital and stored in the sound memory, and the stored digital sound is appropriately converted to analog and reproduced and output. However, means for recording and reproducing the radio sound in an analog state is used. You can also. As described above, the present invention has been described with reference to the examples. However, the present invention can be variously modified according to the gist of the present invention described in the claims.
The present invention does not exclude these.

[0012]

As described above, according to the present invention, a memory for storing radio sound and a recording / reproducing unit for writing and reading the radio sound to and from the memory are provided. To write the radio sound into the memory, cancel the mute of the radio sound when the telephone call ends, and control the recording / reproducing unit to end the writing of the radio sound to the memory, and record / reproduce by the reproduction request. Since the playback unit is controlled to reproduce and output the radio sound stored in the memory, the call is terminated even if a call is received and a mute is received during reception of a radio broadcast such as traffic information or news. Later, the user can listen to the radio information such as the traffic information and news.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a radio receiver according to the present invention.

FIG. 2 is a processing flow of radio sound output control of the present invention.

[Explanation of symbols]

 12. Radio section 13. Voice selection section 14. Mute circuit 17. System controller 18a. Playback key 19. Voice memory 20. Voice recording / playback section 21. Car telephone

Claims (1)

[Claims] An audio output control method for a radio receiver which mutes radio sound upon receiving a telephone call and cancels mute upon termination of the call, comprising: a memory for storing radio sound; A reproducing unit is provided to mute the radio sound upon receiving a telephone call, control the recording / reproducing unit to write the radio sound into the memory, cancel the muting of the radio sound upon termination of the telephone call, and record / reproduce the sound. Controlling the recording / reproducing section in response to a reproduction request to reproduce and output the radio sound stored in the memory. Control method.