JP2005045570A - Television receiver and television receiver control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a safe driving even in the case of providing only audio in the program related to television broadcasting in a television receiver, especially an on-vehicle television receiver and a television receiver control method. <P>SOLUTION: In the television receiver control method, programs are successively cyclically recorded in a prescribed area of a recording medium when a user starts viewing programs, and this cyclic program recording is terminated by user's indication of program recording start, and programs are newly recorded. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a television receiver and a method for controlling the television receiver, and is particularly applicable to a vehicle-mounted television receiver. According to the present invention, a program is sequentially and cyclically recorded in a predetermined area of a recording medium by starting viewing of the program, and when the user instructs to start recording the program, the recording of the cyclic program is terminated and a program is separately recorded. By recording, safe driving can be ensured even when only the audio of a program related to television broadcasting is provided.

  2. Description of the Related Art Conventionally, in a car navigation device that is an in-vehicle display device, a television tuner can be connected and used as a television receiver. Also, a dedicated receiver for television broadcasting is provided for in-vehicle use. In such a television receiver, for example, as disclosed in Japanese Patent Application Laid-Open No. 6-262984, the display of the television broadcast is stopped by the start of traveling, thereby achieving safe driving. .

  In addition, even when the display of the television broadcast is stopped in this way, a method of providing only the sound to the user has been proposed. In this method, the television broadcast is displayed while the vehicle is running. The program can be enjoyed in the car, and it is thought that the convenience can be improved accordingly.

However, in the case where only the audio of the television broadcast is provided in this way, the user may be motivated to view the program and hinder safe driving.
JP-A-6-262984

  The present invention has been made in consideration of the above points, and a television receiver capable of ensuring safe driving even when only the sound of a program related to television broadcasting is provided while traveling. The present invention intends to propose a control method for a television and a television receiver.

  In order to solve the problem, the invention of claim 1 is applied to a television receiver mounted on a vehicle, and when a television broadcast program starts to be viewed, the program is sequentially and cyclically distributed in a predetermined area of the recording medium. In response to an instruction to start recording of the program, the recording of the circular program is terminated and the recording of the program is started separately.

  According to a fourth aspect of the present invention, the method is applied to a method for controlling a television receiver mounted on a vehicle, and a program is sequentially and cyclically recorded in a predetermined area of a recording medium when a television broadcast program starts to be viewed. In response to an instruction to start recording the program, the recording of the circular program is terminated and the recording of the program is started separately.

  According to the configuration of claim 1, when applied to a television receiver mounted on a vehicle, when a television broadcast program starts to be viewed, the program is sequentially and cyclically recorded in a predetermined area of the recording medium, and the program recording starts. In response to the instruction, the circular recording of the program is terminated, and if the recording of the program is started separately, the program at the time point earlier than the recording start instruction time is recorded by the user's instruction to start recording the program. In the state, the program related to the instruction can be recorded. Thus, for example, even when only the voice is provided to the user while traveling, the user can view the recorded program again, thereby ensuring a safe driving by a comfortable driving. In addition, since the program up to the point when recording is instructed is also recorded, the desired program can be viewed again without instructing the recording of the program in a hurry. Can be planned.

  Thus, according to the configuration of the fourth aspect, there is provided a television receiver control method capable of ensuring safe driving even when only the audio of a program related to television broadcasting is provided during traveling. Can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where only the audio | voice of the program concerning a television broadcast is provided during driving | running | working, a safe driving | operation can be ensured.

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

(1) Configuration of Embodiment FIG. 2 is a block diagram showing a television receiver according to Embodiment 1 of the present invention. In this television receiver 1, the tuner unit 2 selects and receives a broadcast wave desired by the user from the broadcast wave received by the antenna A under the control of the system control unit 3, and the reception result is a video. Output signal and audio signal. The analog-digital conversion circuit (A / D) 4 performs analog-digital conversion processing on the video signal and audio signal output from the tuner unit 2 and outputs video data and audio data. The encoding control unit 6 compresses the video data and audio data output from the analog-digital conversion circuit 4 and outputs the compressed data to the bus BUS. The decode control unit 7 switches the operation under the control of the system control unit 3, and decompresses and outputs the video data and audio data output to the bus BUS. The digital / analog conversion circuit (D / A) 8 inputs the audio data obtained by decompressing the data by the decode control unit 7, performs digital / analog conversion processing, and outputs an audio signal as a result of the processing. The amplifier circuit 9 drives the speaker 10 with this audio signal, and thereby outputs the sound of the program related to television broadcasting. The display control unit 11 drives the display unit 12 by a liquid crystal display device or the like by the video data obtained by decompressing the data by the decode control unit 7, thereby displaying a television broadcast video on the display unit 12. As a result, the television receiver 1 can view a desired television broadcast.

  The interface (I / F) 13 operates under the control of the system control unit 3, records various data output to the bus BUS on the memory card 14, and conversely, the data is recorded on the memory card 14. Various data are read and output to the bus BUS. As a result, the television receiver 1 can enjoy various contents recorded on the memory card 14, and can also record and save various data output to the bus BUS on the memory card 14. Has been made.

  The hard disk device (HDD) 15 records the output data of the hard disk control unit 16 on the hard disk under the control of the hard disk control unit (HDD control unit) 16, reproduces the data recorded on the hard disk, and outputs it to the hard disk control unit 16. To do. The hard disk control unit 16 controls the operation of the hard disk device 15 under the control of the file system control unit 19, records various data output to the bus BUS in the hard disk device 15, and reproduces data reproduced by the hard disk device 15. Output to bus BUS. As a result, in the television receiver 1, a television broadcast program is recorded on the hard disk device 15, and the recorded program can be viewed by the display unit 12 and the speaker 10, and further recorded on the memory card 14. Can be viewed at home.

  The system control unit 3 is a computer that controls the operation of the television receiver 1 by executing a predetermined processing procedure. When a user instructs viewing of a television broadcast by an operation of an operator (not shown) or a remote commander, the tuner 3 The operations of the unit 2, the analog-digital conversion circuit 4 and the encoding control unit 6 are controlled to receive a television broadcasting station desired by the user, and the received television broadcasting station program is controlled by the control of the decoding control unit 7 and the like. Provide to users. Also, the start of viewing such a program is notified to the file system control unit 19.

  In this series of processing, the system control unit 3 determines whether or not the vehicle is traveling by the vehicle speed pulse PS from the vehicle on which the television receiver 1 is mounted or by setting the parking brake. In the middle, the display on the display unit 12 is stopped and the program is provided only by sound. Further, when the user instructs to record the program in the state of providing the program to the user in this way, the file system control unit 19 is instructed to record the program. At this time, an input of recording time is received from the user by the voice guide, and when the program is recorded for this recording time, or when the user instructs to continue recording the program, the file system control unit 19 is instructed to end the recording. Also, when the power is turned off by a user's key operation during recording of such a program, the supply of power to the display control unit 11 and the like related to the output of video data and audio data is stopped to display video and audio. Stops output and continues program recording in the background.

  When the user gives an instruction to reproduce such a recorded program, a file list of programs recorded in the hard disk device 15 is acquired via the file system control unit 19. Further, according to the user's selection from this list, the file system control unit 19 is instructed to reproduce the corresponding file, and the program related to the reproduced file is provided to the user according to the user's instruction, and further to the memory card Record.

  The file system control unit 19 is a control unit related to the file management system of the hard disk device 15. When the power source of the television receiver 1 is turned on and the hard disk device 15 starts operating, the hard disk device 15 starts the operation of the hard disk device 15. The file management information recorded in the file management area is loaded and held. The system control unit 3 detects a free area of the hard disk device 15 from the file management information held in this way, issues a write command to the hard disk control unit 16, and holds the file corresponding to the write command. The management information and the file management information recorded on the hard disk device 15 are updated. In addition, commands are sequentially issued based on the stored file management information to reproduce files recorded on the hard disk device 15.

  In this series of processing, the file system control unit 19 starts the loop recording by controlling the hard disk control unit 16 when the television receiver 1 starts viewing the television broadcast under the control of the system control unit 3. . Here, in the loop recording, as shown in FIG. 3A, an area AR1 having a certain amount of data is secured in the hard disk device 15, and data is sequentially and cyclically recorded in this area AR1 as indicated by an arrow A. In this embodiment, video data and audio data compressed by the encoding control unit 6 are assigned to data related to loop recording.

  In this loop recording, the file system control unit 19 manages the current recording position in the area AR1 by the frame counter P based on the cluster address, so that the program is always recorded by the amount of data in the area AR1 from the current time point. Thus, even when the user's instruction to start recording the program is delayed, it is possible to respond sufficiently.

  Further, the file system control unit 19 performs loop recording in this way, and when recording of a program is instructed by the system control unit 3, the loop recording ends, and as shown in FIG. The hard disk control unit 16 is instructed to record video data and audio data related to this program from the area following the recording area AR1. When the recording of the program is started in this way and the end of recording is instructed from the system control unit 3, the file system control unit 19 instructs the hard disk control unit 16 to end the recording.

  When the program is recorded after loop recording in this way, the file system control unit 19 records one file File1 in the area AR1 related to loop recording in the file management information, and also records the program following this area AR1. Is recorded in the file management information. Further, recording management information for managing these file File1 and file File2 as one file is set as shown in FIG.

  Here, the recording management information includes the file name L1 of one file by the file File1 and the file File2, the management file name L2 on the file management information of the file by the file File2, and the file management of the file File1 in the area AR1 related to loop recording. It consists of a management file name L3 on information and unnecessary part information L4. Here, as shown in FIG. 3B, the file system control unit 19 goes back a predetermined amount of data from the recording position indicated by the frame counter P when the system control unit 3 gives an instruction to start recording the program. The area required for reproduction is set as an unnecessary part N except for the required part in the area AR1, and the start address of the required part specified by the address of the pointer P or the address of the frame counter P is set as an unnecessary part. Assigned to information L4. Thus, the file system control unit 19 can detect the recording position of the video data and audio data related to the loop recording from the unnecessary portion information L4 for a certain amount of data from the end of the loop recording.

  In this way, the file system control unit 19 replaces the file names L2 and L3 on the file management information with respect to the files File1 and File2 related to the loop recording, and replaces the file name L1 based on the recording management information with the system control unit 3 And the file processing is accepted from the system control unit 3 by the file name L1 based on the recording management information. When the file playback is instructed from the system control unit 3, as shown by an arrow in FIG. 3C, the playback order is indicated by an area AR1 related to loop recording based on the unnecessary part information L4. Are played back in the order in which they were recorded, and the subsequent file is played back.

  That is, FIG. 1 is a flowchart showing a processing procedure of the file system control unit 19 when the vehicle is traveling. When the system control unit 3 instructs the system control unit 3 to start receiving a television broadcast, the file system control unit 19 proceeds from step SP1 to step SP2, where the file name L1 described above with reference to FIG. Is set in advance in the record management information. The file name L1 is created based on, for example, the date and time related to viewing the program in accordance with an instruction from the system control unit 3. Subsequently, the file system control unit 19 proceeds to step SP3, resets the frame counter P so that the count value of the frame counter P indicates the start address of the area AR1 related to loop recording, and in step SP4, loop recording is performed. The recording is instructed to the hard disk control unit 16. In subsequent step SP5, it is determined whether or not recording is instructed from the system control unit 3. If a negative result is obtained here, the process proceeds to step SP6. In step SP6, the file system control unit 19 determines whether or not the count value B by the frame counter has reached the end cluster address of the area AR1 related to loop recording. If a negative result is obtained here, step SP5 On the other hand, if a positive result is obtained, the process returns to step SP3. As a result, the file system control unit 19 records video data and audio data obtained by sequentially and sequentially receiving television broadcasts in the area AR1 related to loop recording secured in the hard disk device 15. In this series of processing, when viewing of the program is stopped by the user, the file system control unit 19 stops the series of processing by the notification from the system control unit 3, and the file registered in advance in step SP2 After deleting the record such as the name L1, this processing procedure is terminated.

  On the other hand, when the user instructs recording of the program, the file system control unit 19 obtains a positive result in step SP5 by the notification from the system control unit 3, and proceeds to step SP7. Here, based on the count value of the frame counter P at the current time point, the file system control unit 19 sets the above-described unnecessary part information L4 as recording management information, and in the subsequent step SP8, video data from the area following the area AR1. And instructing the hard disk control unit 16 to record the audio data, thereby starting the recording of the file File 2 described above. In the subsequent step SP9, the file name is registered in the recording management information so as to correspond to the recording of the subsequent file. In the subsequent step SP10, the end of the recording is instructed from the system control unit 3 by the recording end instruction by the user. Judge whether or not. If a negative result is obtained here, the file system control unit 19 repeats the processing of step SP10. On the other hand, if a positive result is obtained, the file system control unit 19 moves to step SP11 and ends this processing procedure.

(2) Operation of Example In the above configuration, in the television receiver 1, when a user instructs viewing of a program, a desired television broadcast wave is received by the tuner unit 2 under the control of the system control unit 3. The analog / digital conversion circuit 4 outputs video data and audio data of the television broadcast wave. The video data and audio data are compressed by the encode control unit 6 and then decompressed by the decode control unit 7. The audio data is output from the speaker 10. The video data is displayed on the display unit 12 by driving the display unit 12 by the display control unit 11. As a result, the television receiver 1 can heal the fatigue of driving by watching a desired program while the vehicle is stopped, for example.

  In the television receiver 1, when viewing of the program is started in this manner and the vehicle starts to run, the system controller 3 starts driving the vehicle by the vehicle speed pulse PS or by operating the parking brake. The display of the image by the display unit 12 is stopped by the control by the system control unit 3. Thereby, in this television receiver 1, when the vehicle is running, only the audio of the program is provided so that the program can be auditioned.

  As a result, in the vehicle of the television receiver 1, when looking at the driver's line of sight, it is possible to concentrate on driving by watching each part necessary for driving, and safe driving can be achieved. However, since the program is provided by audio, if the user is willing to watch the program, the program may be stird, and in this case, there is a risk of overspeeding.

  In the television receiver 1, when the user starts viewing a program, the hard disk device 15 performs loop recording processing under the control of the hard disk control unit 16 by the file system control unit 19, and the program is stored in a certain area AR 1 of the hard disk. Video data and audio data output from the encoding control unit 6 are recorded sequentially and cyclically. As a result, the television receiver 1 always records and holds programs for the amount of data in the area AR1 from the current time point.

  When the user instructs to record a program, the loop recording is terminated and recording of video data and audio data output from the encoding control unit 6 is started separately. As a result, the user can ensure the safe driving by a comfortable driving by viewing the program recorded in this way again.

  In addition, by loop recording, even a program that has been recorded back from the recording start instruction time is recorded, so that a desired program can be viewed again without instructing to record the program. Even safe driving can be achieved.

  That is, in the television receiver 1, when the user designates a file again and instructs the reproduction of the program recorded in this way, the corresponding video data and audio data recorded in the hard disk device 15 are reproduced and decoded. The data is decompressed by the unit 7 and provided to the user by the speaker 10 and the display unit 12. At this time, the television receiver 1 sets a predetermined area from the portion related to loop recording as an unnecessary portion, sequentially reproduces video data and audio data from the portion related to loop recording, and then transmits video data and audio data from a separately recorded file. Play audio data and provide it to the user. As a result, the television receiver 1 can concentrate on driving and can instruct recording of a program at a time when there is room for driving, and accordingly, safe driving can be achieved.

(3) Advantages of the embodiment According to the above configuration, the program is sequentially and cyclically recorded in a predetermined area of the recording medium when the program starts to be viewed. By stopping the recording and recording the program separately, safe driving can be ensured even when only the audio of the program related to television broadcasting is provided.

  That is, by driving the vehicle and stopping the display of the video related to viewing the program, safe driving can be ensured even when only the audio is provided to the user.

  In addition, in response to an instruction to reproduce a program recorded on a recording medium, the program is sequentially reproduced from a location related to the recording of a cyclic program and provided to the user, so that the operation can be performed without instructing to record the program in a hurry. Program recording can be instructed at a certain point in time, and safe driving can be achieved accordingly.

  In the above-described embodiment, the case where only the voice is provided while traveling is described. However, the present invention is not limited to this, and the provision of the voice is also stopped when the program is recorded. May be.

  In the above-described embodiment, the case of recording a program on the hard disk device has been described. However, the present invention is not limited to this, and can be widely applied to the case of recording on various recording media such as an optical disk.

  The present invention relates to a television receiver and a method for controlling the television receiver, and is particularly applicable to a vehicle-mounted television receiver.

It is a flowchart which shows the process sequence of the file system control part in the television receiver which concerns on Example 1 of this invention. It is a block diagram which shows the television receiver which concerns on Example 1 of this invention. 2 is a chart for explaining the processing procedure of FIG. 1. It is a chart which shows individual file management information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Television receiver, 3 ... System control part, 10 ... Speaker, 12 ... Display part, 15 ... Hard disk drive, 16 ... Hard disk control part, 19 ... File system control part

Claims (4)

In a television receiver mounted on a vehicle,
Recording of the program sequentially and cyclically in a predetermined area of the recording medium by starting viewing of a television broadcast program,
In accordance with an instruction to start recording the program, the recording of the cyclic program is ended and the recording of the program is started separately. The television receiver according to claim 1, wherein display of the video related to viewing the program is stopped by traveling of the vehicle. 2. The television receiver according to claim 1, wherein in response to an instruction to reproduce the program recorded on the recording medium, the program is sequentially reproduced and provided to a user from a location related to the circular program recording. . In a control method of a television receiver mounted on a vehicle,
Recording the program sequentially and cyclically in a predetermined area of the recording medium by starting the viewing of the television broadcast program,
In accordance with an instruction to start recording of the program, the recording of the cyclic program is terminated and the recording of the program is started separately.

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