JP2006165858A - In-vehicle television system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an "in-vehicle television system" for outputting a voice so that program contents such as sports can be sufficiently grasped even if any video is not outputted at the time of tuning television broadcasting while a vehicle travels. <P>SOLUTION: In this in-vehicle television system which is provided with a television receiving device 14 and a radio receiving device 15, and configured to inhibit an output of a television video while a vehicle travels, when the radio broadcasting of the same program as that of a television program tuned by the television receiving device exists and the vehicle travels, a control part 12 makes the radio receiving device receive the radio broadcasting program, and outputs a radio voice instead of a television voice. Also, when the radio broadcasting of the same program does not exist, or the vehicle stops, the control part outputs the television voice. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle-mounted television system, and more particularly to a vehicle-mounted television system that includes a television receiver and a radio receiver and prohibits the output of television images while the vehicle is traveling.

The on-board TV broadcast receiver does not display images while driving so as not to hinder the driver's driving. For this reason, when a sports program such as baseball, soccer, sumo, or horse racing is received by the TV broadcast receiver while traveling, only the TV sound is output without video. However, since television broadcasts are produced on the premise of watching video, it is difficult to fully understand the contents of the program even if only the audio is heard. In particular, there is a problem that the television sound of sports programs is omitted, and it is difficult to understand because it cannot grasp the detailed scenes.
Therefore, there is a conventional technique for outputting a television image as a video and outputting a radio sound as a sound (see Patent Document 1). In addition, while receiving sports programs on the radio while driving, the TV programs of the same sports programs are received in the background and continuously overwritten in a predetermined amount of memory, and the memory contents when the save is instructed are saved. There is a conventional technique in which the stored television image is reproduced later (see Patent Document 2).
JP 2002-94890 A JP 2002-94933 A

Since the first prior art outputs TV video together with radio sound, it cannot be applied to an in-vehicle TV system that prohibits video output while traveling. The second prior art is a control method when the user selects a radio broadcast during traveling, and cannot be applied when the user selects a television broadcast during traveling.
As described above, an object of the present invention is to output sound so that the user can sufficiently grasp the contents of a program such as sports even when no video is output when the user selects a television broadcast during driving.

According to the present invention, the above-described problem is provided in a vehicle-mounted television system that includes a television receiver and a radio receiver and prohibits the output of television images while the vehicle is running. If there is an audio switching unit for switching and outputting received audio and radio received audio, and a radio broadcast of the same program as the selected TV program or the TV program being selected and received, and the vehicle is running, This is achieved by an in-vehicle television system including a control unit that receives the radio broadcast by a radio receiving device and controls the audio switching unit to output radio audio.
The vehicle-mounted television system includes a communication unit that communicates with an external program information providing center, and the control unit transmits the selected TV channel number to the center via the communication unit, and the TV receives the television channel number from the center. When radio broadcast station information that broadcasts the same program as the channel number program is received, control is performed so as to output radio sound received from the radio broadcast station if the vehicle is running. In addition, when there is no radio broadcast of the same program or when the vehicle is stopped, the control unit controls the audio switching unit to output television sound.
When the vehicle-mounted television system includes means for creating and holding program linkage information between a radio broadcast program and a television broadcast program, the control unit is the same as the television program selected with reference to the program linkage information If there is a radio broadcast of the program, and if it is present and the vehicle is running, the radio receiver receives the radio broadcast and controls the audio switching unit to output radio audio.

  According to the present invention, if there is a radio broadcast of the selected TV program or the same program as the TV program being selected and received, and the vehicle is running, the radio reception device receives the radio broadcast, Since it is configured to output radio sound instead of TV sound, the user should fully understand the contents of sports programs, etc., even if no video is output when the user selects a TV broadcast during driving. Became possible. That is, it is difficult to understand the situation with only the sound of the television broadcast, but by using the radio sound, it is possible to enjoy a program such as a sports broadcast without watching the video. Also, when stopping and watching with video, it automatically returns to the television broadcast, eliminating the trouble of switching each time.

In an in-vehicle television system that includes a television receiver and a radio receiver, and prohibits the output of television images while the vehicle is running, the control unit is the same as the television program selected by the television receiver or the television program that is being selected and received If there is a radio broadcast of the program and the vehicle is running, the radio reception device receives the radio broadcast program and outputs the radio sound instead of the TV sound.
For example, the control unit transmits the selected TV channel number to the external program information providing center via the communication unit, and the radio broadcast station information that broadcasts the same program as the program of the TV channel number is transmitted from the center. If it is received and the vehicle is running, control is performed to output radio sound received from the radio broadcast station. In addition, the control unit outputs television sound when there is no radio broadcast of the same program or when the vehicle is stopped.

FIG. 1 is a block diagram of the in-vehicle television system of the first embodiment. The operation unit 11 performs a radio broadcast channel selection operation, a television broadcast channel selection operation, and the like, and the control unit 12 performs channel selection control of the radio broadcast station when a radio broadcast station channel selection operation is performed. When a channel selection operation is performed on a broadcast station (television channel), channel selection control of the television broadcast station is performed according to a flow described later. The traveling state detector 13 detects whether the vehicle is traveling or stopped.
The TV broadcast receiver 14 tunes to the TV broadcast station according to the instruction of the control unit 12 when the TV broadcast station is selected, and (1) outputs both TV video and TV audio when the vehicle is stopped. (2) If the vehicle is running, only TV audio is output. The radio broadcast receiver 15 (1) outputs a radio sound in synchronization with the radio broadcast station in accordance with an instruction of the control unit 12 when a radio broadcast station is selected, and (2) a television broadcast station while traveling. When there is a radio broadcast station that broadcasts the same program as the television broadcast station under the control of the control unit 12, the radio sound is output in synchronization with the radio broadcast station.

The voice switching unit 16 is controlled by the control unit 12.
(1) Radio sound is output during radio reception by radio channel selection operation,
(2) During TV reception by TV channel selection operation, if it is stopped, TV sound is output,
(3) During TV reception by TV channel selection operation, if there is no radio broadcast station that is running and broadcasting the same program as the received TV broadcast program, output TV audio,
(4) If a radio broadcast station that is running and is broadcasting the same program as the received TV broadcast program is present during TV reception by the TV channel selection operation, radio sound is output.
The speaker 17 receives an audio signal output from the audio switching unit 16 and outputs radio sound or television sound to the vehicle interior acoustic space, and the display device 18 displays a television image. The communication unit 19 has an Internet communication function, connects to the Internet network via a mobile phone (not shown) in accordance with an instruction from the control unit 12, and acquires predetermined information from an external server (program information providing server) 20. An input is made to the control unit 12. That is, in accordance with an instruction from the control unit 12, the communication unit 19 inquires the program information providing server 20 about a radio broadcast station that is broadcasting the same program as the broadcast program of the TV broadcast station selected by the user, and the inquiry result. Is received from the program information providing server 21 and input to the control unit 12. The program information providing server 20 includes a communication unit 21, a database 22 for storing program data of all television stations and radio stations, and a processor 23. The processor 23 broadcasts the television broadcast station inquired from the in-vehicle side. Check whether there is a radio broadcasting station that is broadcasting the same program as the program with reference to the database 22, and if it exists, the station information of the radio broadcasting station is transmitted via the communication unit 21 to the in-vehicle communication. Transmit to unit 19. Note that the database 22 includes, as program data, electronic program information indicating at least one day's program table of all television channels (tele broadcasting stations) and all radio broadcasting stations, the type and content of each program, and the like.

FIG. 2 is a processing flow when the control unit 12 selects a television.
When the operation unit 11 is operated to select a predetermined television channel (step 101), the control unit 12 checks whether the vehicle is running or stopped (step 102). If the vehicle is stopped, the television broadcast receiver 14 tunes to the selected television broadcast station in accordance with an instruction from the control unit 12, outputs both television video and television audio (step 103), and an audio switching unit. 16 selects the television sound under the control of the control unit 12 and inputs it to the speaker 17 (step 104).
On the other hand, in step 102, if the vehicle is running, the television broadcast receiver 14 tunes to the selected television broadcast station in accordance with an instruction from the control unit 12, and does not output the TV image and outputs only the TV sound ( Step 105).

Further, the communication unit 19 inquires of the program information providing server 20 about a radio broadcast station that is broadcasting the same program as the broadcast program of the TV channel (TV broadcast station) selected by the user in accordance with the instruction of the control unit 12 ( Step 106), the inquiry result is received from the program information providing server 21 and input to the control unit 12 (step 107). Based on the input inquiry result, the control unit 12 checks whether there is a radio broadcast station that is broadcasting the same program as the broadcast program of the selected TV channel (step 108). The switching unit 16 is instructed to select the television sound, and the sound switching unit 16 thereby selects the television sound and inputs it to the speaker 17 (step 104).
On the other hand, if there is a radio broadcast station that broadcasts the same program as the broadcast program of the selected TV channel, the control unit 12 outputs radio sound in synchronization with the radio broadcast receiver 15 to the radio broadcast receiver 15. And instructing the audio switching unit 16 to select radio audio. As a result, the radio broadcast receiver 15 tunes to the radio broadcast station that is broadcasting the same program as the TV channel broadcast program, outputs radio sound (step 109), and the sound switching unit 16 selects the radio sound. To the speaker 17 (step 110).

FIG. 3 is a processing flow of the program information providing server.
The processor 23 of the program information providing server 20 monitors whether there is an inquiry about the radio broadcast station that is broadcasting the same program as the broadcast program of the TV channel (TV broadcast station) from the in-vehicle side (step 201). If there is, a check is made with reference to the database 22 to determine whether there is a radio broadcast station that is broadcasting the same program as the broadcast program of the TV broadcast station in question (step 202). A message notifying the station information of the radio broadcast station is created (step 203), and if it does not exist, a message that the corresponding radio broadcast station does not exist is created (step 204), and the message is sent to the communication unit 19 on the vehicle side. Transmit (step 205).

In the above, if there is a radio broadcast of the same program as the program selected by the television receiver regardless of the type of program and the vehicle is running, the radio sound of the program is output instead of the TV sound. However, the type of program can be limited to sports programs. That is, the radio broadcast of the sports program may be output instead of the television sound only when the radio broadcast of the same program as the sports program selected by the television receiver exists and the vehicle is running. it can. Specifically, the following control is performed.
When the user operates the operation unit 11 to select a program of a predetermined TV channel (TV broadcasting station), the control unit 12 sends the selected TV channel number to the external program information providing server 20 via the communication unit 19. Send. The processor 23 of the program information providing server 20 refers to the database (electronic program information) to determine whether or not the program of the TV channel is a sports broadcast. If it is a sports program, the database is further searched to determine whether the sports program is broadcast on the radio, and the search result is transmitted to the in-vehicle communication unit 19. The control unit 12 performs the same processing from step 108 onward in FIG. 2, and if there is no radio broadcasting station that broadcasts the same program as the sports program of the selected TV channel, outputs the TV sound. If the vehicle is running, the radio sound of the sports program is output.

In addition, the control when selecting a TV channel has been described above, but also when starting running while receiving TV while stopping or when stopping while receiving TV (no TV image is output) Similarly, the processing flow of FIG. 2 can be applied. For example, when the vehicle is stopped, a television image is displayed on the display device 18 and a television sound is output from the speaker 17, but when the vehicle starts running, the control unit 12 displays it on the display device according to the processing flow of FIG. At the same time, the audio from the speaker is erased and the audio from the speaker is left as TV audio (if there is no same radio program), or switched to radio audio and output (if there is the same radio program). Further, even when the vehicle stops, the control unit 12 displays a television image on the display device 18 in accordance with the processing flow of FIG.
As described above, according to the first embodiment, if there is a radio broadcast of the same program as the TV program selected by the TV receiver and the vehicle is running, the radio receiver receives the radio broadcast program, Radio sound can be output instead of TV sound. As a result, although it is difficult to understand the situation only with the sound of the television broadcast, the program, for example, a sports broadcast can be enjoyed without using the radio sound. Also, when stopping and watching with video, it automatically returns to the television broadcast, eliminating the trouble of switching each time.

FIG. 4 is a block diagram of the in-vehicle television system according to the second embodiment. Components identical with those of the first embodiment shown in FIG. The difference is that the program cooperation information creation unit 31 and the program cooperation information storage unit 32 are provided, and the communication unit 19 and the program information providing server 20 are deleted. In the first embodiment, the control unit 12 acquires the station information of the radio broadcast station that broadcasts the same program as the TV channel broadcast program from the program information providing server 20, but in the second embodiment, the program link information storage is performed. The station information of the radio broadcast station is acquired from the unit 32.
In digital TV broadcasting, since the received signal contains program sequence information in addition to MPEG video data / MPEG audio data of each channel, the program sequence information is decoded to obtain daily program information of all TV channels. it can. On the other hand, since the digital radio broadcast signal includes the program information of each channel, the program information of all radio channels can be acquired.
From the above, the program cooperation information creation unit 31 acquires TV and radio program information, obtains a combination of the same program among the TV program and the radio program, creates the combination as program cooperation information, and stores the program cooperation information Stored in the unit 32.

FIG. 5 is a processing flow when the control unit 12 selects a television channel when the program cooperation information is stored in the program cooperation information storage unit 32.
When the operation unit 11 is operated to select a predetermined television channel (step 301), the control unit 12 checks whether the vehicle is running or stopped (step 302). If the vehicle is stopped, the television broadcast receiver 14 tunes to the selected television broadcast station in accordance with an instruction from the control unit 12, outputs both television video and television audio (step 303), and an audio switching unit. 16 selects television sound under the control of the control unit 12 and inputs it to the speaker 17 (step 304).
On the other hand, in step 302, if the vehicle is running, the television broadcast receiver 14 tunes to the selected television broadcast station in accordance with an instruction from the control unit 12 and outputs only the TV sound without outputting the TV image ( Step 305).

Next, the control unit 12 checks whether the broadcast program of the selected TV channel with reference to the program arrangement information included in the TV signal is a sports program (step 306). 16 is instructed to select the television sound, and thereby the sound switching unit 16 selects the television sound and inputs it to the speaker 17 (step 304). On the other hand, in the case of a sports program, the control unit 12 refers to the program cooperation information stored in the program cooperation information storage unit 32, and the radio broadcast broadcasts the same program as the broadcast program of the TV channel (TV broadcast station) selected. If the station is present (step 307), the voice switching unit 16 is instructed to select the television sound. If the station is not present, the voice switching unit 16 selects the television voice and inputs it to the speaker 17 (step 307). 304).
On the other hand, if there is a radio broadcast station that broadcasts the same program as the broadcast program of the selected TV channel, the control unit 12 outputs radio sound in synchronization with the radio broadcast receiver 15 to the radio broadcast receiver 15. And instructing the audio switching unit 16 to select radio audio. As a result, the radio broadcast receiver 15 tunes to the radio broadcast station that is broadcasting the same program as the TV channel broadcast program, outputs radio sound (step 308), and the sound switching unit 16 selects the radio sound. To the speaker 17 (step 309).
In the above second embodiment, the present invention is limited to the sports program, but it is not necessary to limit to the sports program. In such a case, the processing in step 306 is unnecessary.
As described above, according to the second embodiment, when a program selected by the television receiver, for example, a radio broadcast of the same sports program as the sports program exists and the vehicle is running, the radio program is displayed on the radio receiver. The radio sound can be output instead of the TV sound.

It is a block diagram of the vehicle-mounted television system of 1st Example. It is a processing flow at the time of television channel selection of 1st Example. It is a processing flow of a program information provision server. It is a block diagram of the vehicle-mounted television system of 2nd Example. It is a processing flow at the time of television channel selection of 2nd Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Operation part 12 Control unit 13 Running state detection part 14 Television broadcast receiver 15 Radio broadcast receiver 16 Audio | voice switching part 17 Speaker 18 Display apparatus 19 Communication unit 20 External server (program information provision server)

Claims (5)

In a vehicle-mounted television system that includes a television receiver and a radio receiver and prohibits the output of television images while the vehicle is running,
A running state detector for detecting the running state of the vehicle;
An audio switching unit for switching and outputting TV reception audio and radio reception audio;
If there is a radio broadcast of the selected TV program or the same program as the selected TV program and the vehicle is running, the radio receiving device receives the radio broadcast, and the audio switching unit A control unit for controlling and outputting radio sound,
An in-vehicle television system characterized by comprising: It has a communication unit that communicates with an external program information provision center.
When the control unit transmits the selected TV channel number to the center via the communication unit, and receives information from the center on radio broadcast station broadcasting the same program as the program of the TV channel number If the vehicle is running, control to output radio sound received from the radio station,
2. The in-vehicle television system according to claim 1, wherein Means for creating and maintaining program linkage information between a radio broadcast program and a television broadcast program;
The control unit checks whether there is a radio broadcast of the same program as the selected TV program with reference to the program linkage information, and if it exists, if the vehicle is running, the radio reception device transmits the radio broadcast. Receiving and controlling the voice switching unit to output radio voice;
2. The in-vehicle television system according to claim 1, wherein The control unit outputs the TV sound by controlling the audio switching unit when there is no radio broadcast of the same program or when the vehicle is stopped.
2. The in-vehicle television system according to claim 1, wherein 2. The in-vehicle television system according to claim 1, wherein the program is a sports program.

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