JP4811652B2 - In-vehicle playback device - Google Patents

Description

  The present invention relates to an on-vehicle playback device, and more particularly to an on-vehicle playback device capable of playing back a CD-DA, DVD video, or the like on which audio or video is recorded.

  In an in-vehicle AV player, DVD video, video CD (VCD), which is a video recording medium on which one or more units of video data (including video data with sound) are recorded, or one or more units of audio data are recorded. Various types of recording media such as CD-DA, which is an audio recording medium, CD-R on which audio data files (MP3, WMA, etc.) are recorded, and DVD-R can be reproduced. However, when a video recording medium is played back during traveling, video output is stopped for safety (see Patent Document 1).

FIG. 1 shows an example of a main body configuration of a conventional in-vehicle AV player. Reference numeral 1 denotes an in-vehicle AV player body, 2 and 3 an amplifier and a speaker mounted on the vehicle, and 4 a monitor device. Reference numeral 5 denotes a parking brake sensor mounted on the vehicle, which outputs a sensor signal that becomes H when the parking brake is applied and becomes L when the parking brake is released.
Of the in-vehicle AV player main body 1, reference numeral 10 denotes a disk playback unit which reads management information including disk type information from various optical disks such as CD-DA, video CD, DVD video, etc., or is recorded on an audio recording optical disk. Play audio data and output an analog audio signal to the external amplifier 2 (in the case of a data disc on which a CD-DA or music data file is recorded), or video data recorded on a video recording optical disc (or video with sound) Data) is reproduced and analog video signals (analog audio signals and analog video signals) are externally output to an external monitor device 4 (monitor device 4 and amplifier 2) (DVD video, video CD). The disc reproducing unit 10 reads attribute information such as a time code and a track number attached to the audio data during reproduction of the audio data.

  Reference numeral 11 denotes a loading unit. When an optical disk is inserted, the disk reproducing unit 10 is loaded and loaded. When an ejection command is received, the optical disk is taken out from the disk reproducing unit 10 and ejected to the outside. Reference numeral 12 denotes a key operation unit, which is a key operation unit for performing various key operations such as PLAY, STOP, seek, and eject, and 13 is a main body display unit. When reproducing an audio recording optical disk, a track number (in the case of CD-DA) Or the file number (in the case of a data disc) and the elapsed performance time are displayed. Reference numeral 14 denotes a mute unit provided on the video output side of the disc playback unit 10, which is set to mute off when the video recording optical disc is being played, and mute on when traveling.

  Reference numeral 15 denotes a control unit. When an optical disc is inserted into the main body 1, the control unit 15 controls the loading unit 11, loads the optical disc and loads it into the disc playback unit 10, and causes the disc playback unit 10 to read and input management information. . Then, referring to the management information, the disc playback unit 10 is controlled in accordance with the key operation at the key operation unit 12 to play, stop playback, and seek the loaded optical disc. Further, when the ejecting operation is performed, the control unit 15 controls the loading unit 11 to unload the optical disk and eject it to the outside. The control unit 15 performs display control for the main body display unit 13 and mute on / off control for the mute unit 14 according to the type of the optical disk and whether or not the vehicle is stopped. The sensor output of the parking brake sensor 5 is input to the control unit 15 and used for mute on / off control.

FIG. 2 is a flowchart showing display control and mute on / off control executed by the control unit 15 after the optical disc is loaded, and FIG. 3 is an explanatory diagram showing a display example of the main body display unit 13. Refer to these figures hereinafter. Now, display control and mute control by the control unit 15 will be described.
When the disc playback unit 11 is loaded with a certain optical disc and management information is input from the disc playback unit 10, the control unit 15 starts the processing of FIG. The type of the target optical disc is determined (step S10). If it is a data disc on which music data files such as CD-DA, MP3, WMA, etc., which are audio recording optical discs, are recorded, the main body display unit 13 performs normal display control regardless of whether the vehicle is stopped. Based on the attribute information of the playback data input from the disk playback unit 10 during playback of audio data, the track number (CD-DA) or file number (data disk) being played and the elapsed performance time (XX minutes) (Seconds) is displayed (step S11; see FIGS. 3 (1) and 3 (2)). If the optical disk is ejected, the process is finished (YES in step S12).

If the playback target is a DVD video or video CD that is a video recording optical disk, the sensor output of the parking brake sensor 5 is further checked, and if the vehicle is stopped, monitor display is possible. Normal display control is performed. For example, the title number of the title being played (in the case of DVD video) and the elapsed playback time (XX minutes) based on the attribute information of the playback data input from the disc playback unit 10 during playback of the video data (Seconds) is displayed (step S14). Then, the mute unit 14 is subjected to mute off control to display the reproduced video on the monitor device 4 (step S15). Thereafter, when the sensor output of the parking brake sensor 5 becomes L because of the start of driving, the control unit 15 displays “Monitor OFF” on the main body display unit 13 in order to stop the monitor display in view of safety, and records the video. The user is notified that the optical disk is being reproduced but the monitor display is OFF (step S17, see FIG. 3 (3)), and the mute unit 14 is controlled to mute on to stop the display on the monitor device 4 (step S17). S18). The user can see from the display on the main body display unit 13 that the monitor display is forcibly turned off.

  However, in recent years, when it is possible to play back an optical disc in which video data files such as MPEG, JPEG, and WMV are mixed in the same data disc in addition to audio data files such as MP3 and WMA, Is a data disk, and if the display is uniformly “monitor OFF” when the vehicle is not stopped, when the number of characters displayed on the main body display unit 13 is small, MP3, WMA, etc. It is inconvenient because normal display such as file number and elapsed performance time cannot be displayed. In addition, a user who enjoys only audio data without using a monitor device has a drawback that the display of “monitoring OFF” is bothersome.

JP 2000-335320 A

  In view of the above-described problems of the prior art, the present invention can cause the main body display unit to display an appropriate display according to the reproduction data when reproducing a recording medium in which audio data and video data are mixed when the vehicle is not stopped. It is an object of the present invention to provide an in-vehicle playback device.

The on-vehicle playback device according to claim 1 is an audio recording medium on which one or more units of audio information are recorded, a video recording medium on which one or more units of sound information with or without sound are recorded, 0 or 1 or more Audio and video recording media in which audio information in units of 0 and video information with or without sound in units of 0 or 1 or more are recorded in any combination can be reproduced, and audio and video can be output externally. Reproduction means for reading and outputting attribute information attached to the reproduction information being reproduced, determination means for discriminating the type of reproduction target recording medium and reproduction information, and all or part of the attribute information of the reproduction information being reproduced Display means, mute means for muting the video output of the reproduction means, detection means for detecting whether or not the vehicle is stopped, and whether the vehicle is stopped when the determination means is determined to be an audio recording medium no To display the attribute information of the playback information on the display unit regardless, when the determination means has determined that the video recording medium, the attribute information of the reproduction information on the display unit to mute means mute off if the vehicle is at a stop is displayed, if at a stop and mute means mute oN, forcibly display a message indicating that off an image on the display means, the determination means has determined that the sound information of the audio and video combined recording medium when, when the vehicle is to display the attribute information of the playback information on the display unit regardless of whether the vehicle is stopped, the determination means has determined that the image information of the sound with or without sound audio and video combined recording medium, the vehicle There is displayed the attribute information of the reproduction information on the display unit to mute means mute off if parked, if at a stop and mute means mute oN, the image on the display means is forcibly turned off Is characterized by comprising a control means for displaying a message indicating that the.

According to the in-vehicle playback device of the present invention, when playing back an audio recording medium and playing back audio information in a recording medium in which audio and video are mixed, the attribute attached to the playback information regardless of whether the vehicle is stopped or not. Since all or part of the information is displayed on the main unit display, it is convenient for the user to visually recognize valid information when playing audio information , and a message that the video is forcibly turned off even when the vehicle is not stopped Is not displayed on the main body display unit, so that a user who enjoys only audio information without using a monitor device does not feel bothered by unnecessary information display. On the other hand, when playing back a video recording medium and when playing back or without sound information in a recording medium where audio and video are mixed, the video output is muted and the video is displayed on the main unit display if it is not stopped Is forcibly turned off, the user can easily know why the monitor display is off.

  In addition to audio recording optical discs (CD-DA, etc.), video recording optical discs (DVD video, video CD, DVD audio, etc.), the disc playback unit is MP3, WMA (Windows Media Audio, Windows is a registered trademark), MPEG4 Audio data files such as audio (Advanced Audio Coding) and video data files (including video data with sound) such as JPEG, MPEG, WMV (Windows Media Video), and AVI (Audio Video Interleaving) Disc playback is also possible. When playing back an audio data file, the played analog audio signal is output. When playing back a video data file, the played analog audio signal and analog video signal are output without sound. If there is, the reproduced analog video signal is output. When the playback target is an audio recording optical disc or an audio data file on a data disc, the control unit sets the main body display unit to the normal display state regardless of whether the vehicle is stopped or not, and the track number or file attached to the playback data. Number and elapsed performance time are displayed on the main unit display. On the other hand, when the playback target is a video recording optical disc or a video data file on a data disc, if the vehicle is stopped, the main body display unit is set to the normal display state, the time code attached to the playback data is displayed, and the video output mute is displayed. Is turned off to display the reproduced video on the monitor. If the vehicle is not stopped, “Monitor is OFF” is displayed on the main body display unit, the video output mute is turned on, and the monitor display is stopped.

FIG. 4 is a block diagram showing the configuration of the in-vehicle AV player main body according to one embodiment of the present invention. The same components as those in FIG. 1 are denoted by the same reference numerals.
Among the in-vehicle AV player main body 1A, 10A is a disc playback unit, which is a CD-DA as an audio recording medium, a video CD, DVD video, DVD audio as a video recording medium, or one or a plurality of units of MP3, WMA, MPEG4. In addition to a data disk on which audio data such as audio is recorded, one or more units of audio data and one or more units of video data such as JPEG, MPEG, WMV (Windows Media Video), AVI (Audio Video Interleaving), etc. It is possible to play back a data disc on which one piece of video data with sound is recorded in a mixed manner and a data disc on which one or more units of video data are recorded.

Reference numeral 15A denotes a control unit. When an optical disk is inserted into the main body 1, the control unit 15A controls the loading unit 11, loads the optical disk and loads the disk reproduction unit 10A, and causes the disk reproduction unit 10A to read and input management information. . Then, referring to the management information, the disc playback unit 10A is controlled in accordance with the key operation at the key operation unit 12 to play, stop playback, and seek the loaded optical disc. Further, when the ejecting operation is performed, the control unit 15A controls the loading unit 11 to unload the optical disk and eject it to the outside. Further, the control unit 15A performs display control for the main body display unit 13 and mute on / off control for the mute unit 14 in accordance with the type of the optical disk and whether or not the vehicle is stopped. The sensor output of the parking brake sensor 5 is input to the control unit 15A and used for mute on / off control.
The other components of the in-vehicle AV player main body 1A are configured in exactly the same way as in FIG.

FIG. 5 and FIG. 6 are flowcharts showing display control and mute on / off control executed by the control unit 15A after loading the optical disk. Hereinafter, display control and mute control by the control unit 15A will be described with reference to these drawings. explain.
When the disc playback unit 10A is loaded with a certain optical disk and management information is input from the disc playback unit 10A, the control unit 15A starts the processing of FIGS. 5 and 6 and refers to the management information. The type of the optical disk to be reproduced this time is determined (step S10 in FIG. 5). In the case of CD-DA or the like that is an audio recording optical disc, normal display control is performed on the main body display unit 13 regardless of whether the vehicle is stopped or not, for example, input from the disc playback unit 10A during reproduction of audio data Based on the attribute information of the playback data, the track number being played (in the case of CD-DA) and the elapsed performance time (XX minutes XX seconds) are displayed (step S11; see (1) in FIG. 3). If the optical disk is ejected, the process is finished (YES in step S12).

  If the playback target is DVD video, video CD, DVD audio, etc., which is a video recording optical disk, the sensor output of the parking brake sensor 5 is further checked. 13 performs normal display control. For example, the title number of the title being played (in the case of DVD video) and the elapsed playback time (○) based on the attribute information of the playback data input from the disc playback unit 10 during playback of the video data. (Minute XX seconds) is displayed (steps S13 and S14). Then, the mute unit 14 is subjected to mute off control to display the reproduced video on the monitor device 4 (step S15). Thereafter, when the sensor output of the parking brake sensor 5 becomes L because of the start of driving, the control unit 15 displays “Monitor OFF” on the main body display unit 13 in order to stop the monitor display in view of safety, and records the video. The user is notified that the optical disk is being reproduced but the monitor display is turned off (step S17; see FIG. 3 (3)), and the mute unit 14 is controlled to mute on to stop the display on the monitor device 4 (step S17). S18). The user can see from the display on the main body display unit 13 that the monitor display is forcibly turned off. If the optical disk is ejected, the process ends (YES in step S16).

  When the playback target is a data disc, the playback file type is checked at the place where playback of a certain data file has started (steps S20 and S21 in FIG. 6), and it can be a music data file such as MP3, WMA, or MPEG4 audio. For example, the main body display unit 13 performs normal display control regardless of whether or not the vehicle is stopped. For example, the file number being reproduced based on the attribute information of the reproduction data input from the disc reproduction unit 10A during reproduction of audio data. And the elapsed performance time (XX minutes XX seconds) are displayed (step S22; see FIG. 3 (2)). When the reproduction of the current data file is completed, the process returns to step S20 to wait for the reproduction of the next data file or the disk to be ejected (YES in step S23, S20, S24).

When playback of the next data file starts, the type of the playback file is checked again (steps S20 and S21). If the video data file is JPEG, MPEG, WMV, AVI or the like, the sensor output of the parking brake sensor 5 is further output. Is checked (step S25), and if the vehicle is stopped at H, monitor display is possible. Therefore, normal display control is performed on the main body display unit 13, for example, playback input from the disc playback unit 10A during playback of video data. Based on the data attribute information, the file number being played and the elapsed playback time (XX minutes XX seconds) are displayed (step S26). Then, the mute unit 14 is subjected to mute off control to display the reproduced video on the monitor device 4 (step S27). Then, it is checked whether or not the reproduction of the current data file has been completed (step S28). If NO, the process returns to step S25. Thereafter, when the driving is started and the sensor output of the parking brake sensor 5 becomes L, the control unit 15A displays “recording OFF” on the main body display unit 13 in order to stop the monitor display in view of safety. The user is notified that the optical disk is being reproduced but the monitor display is OFF (NO in step S25, S29; see FIG. 3 (3)), and the mute unit 14 is controlled to mute on to display the monitor device 4 on the display. Stop (step S30). The user can see from the display on the main body display unit 13 that the monitor display is forcibly turned off.
When the reproduction of the current data file is completed, the process returns to step S20 to wait for the reproduction of the next data file or the disk to be ejected (YES in step S23, S20, S24).

According to this embodiment, when the playback target is an audio recording optical disc such as a CD-DA or an audio data file in a data disc, the control unit 15A displays the main body display unit 13 regardless of whether the vehicle is stopped. In the normal display state, the track number or file number attached to the reproduction data and the elapsed performance time are displayed on the main body display unit 13. On the other hand, if the playback target is a video recording optical disc such as a DVD video, video CD, or DVD audio, or a video data file such as JPEG, MPEG, WMV, or AVI in a data disc, the main body display unit 13 is displayed if the vehicle is stopped. In the normal display state, the time code attached to the playback data is displayed and the video output mute is turned off to display the playback video on the monitor. If the vehicle is not stopped, “Monitor OFF” is displayed on the main body display unit 13. Turn on the video output mute and stop the monitor display.
When playing back audio recording optical discs such as CD-DA, when playing back data discs recorded only with audio data files such as MP3, WMA, and MPEG4 audio, audio data files and video data such as JPEG, MPEG, WMV, and AVI When playing back an audio data file on a data disc containing mixed files, the file number attached to the playback data and the elapsed performance time are displayed on the main body display unit 13 regardless of whether the vehicle is stopped. Effective information can be visually recognized at the time of data reproduction, and the message that the video is forcibly turned off is not displayed on the main body display unit 13 even when the vehicle is not stopped, so only the audio data is used without using the monitor device. The user who enjoys does not feel bothered by unnecessary information display.
On the other hand, when reproducing a video recording optical disk such as a DVD video, video CD, or DVD audio, or when reproducing a data disk recorded only with a video data file such as JPEG, MPEG, WMV, or AVI, an audio data file and a video data file When playing back video data in a data disc with a mixture of data, if the vehicle is not stopped, the video output is muted and the main body display unit 13 indicates that the video display is forcibly turned off. You can easily know why the display is off.

  The present invention can be applied to a vehicle-mounted multi-disc player, a vehicle-mounted audio device, and a vehicle-mounted AV device.

It is a block diagram which shows the structure of the conventional vehicle-mounted AV player. It is a flowchart which shows the display and mute control processing by the control part in FIG. It is explanatory drawing which shows the example of a display of the main body display part in FIG. 1 is a block diagram showing the configuration of an in-vehicle AV player according to the present invention (Example 1). FIG. 5 is a flowchart showing display control and mute control processing by a control unit in FIG. 4. 5 is a flowchart showing display control and mute control processing by a control unit in FIG. 4.

Explanation of symbols

1A In-vehicle AV player main unit 10A Disc playback unit 13 Main unit display unit 14 Mute unit 15A Control unit

Claims (1)

Audio recording medium on which one or more units of audio information are recorded, video recording medium on which one or more units of sound information with or without sound are recorded, zero or more units of audio information, and 0 or 1 The audio / video combined recording medium in which video information with or without sound in the above units is recorded in any combination can be played, and audio and video can be output externally, or attributes attached to the playback information being played back Reproducing means for reading and outputting information;
A discriminating means for discriminating a recording medium to be reproduced and a type of reproduction information;
Display means capable of displaying all or part of the attribute information of the reproduction information being reproduced ;
Mute means for muting the video output of the playback means,
Detecting means for detecting whether the vehicle is stopped;
When the determination means has determined that the audio recording medium, the vehicle is to display the attribute information of the playback information on the display unit regardless of whether the vehicle is stopped, when the determination means has determined that the video recording medium, the vehicle is parked If so , display the attribute information of the playback information on the display means, turn the mute means on if the vehicle is not stopped, and display a message indicating that the video is forcibly turned off. is displayed, when the determination means has determined that the sound information of the audio and video combined recording medium, the vehicle is to display the attribute information of the playback information on the display unit regardless of whether the vehicle is stopped, determining means audio and video when it is determined that the image information of the sound with or without sound combined recording medium, the vehicle is to display the attribute information of the reproduction information on the display unit as a muting off mute means if at a stop, mute hand if at a stop It was mute ON, and control means for displaying a message indicating that the image is forced off the display unit,
A vehicle-mounted playback device comprising:

Images