JP4316468B2 - Data reproduction system, data reproduction method, and resume reproduction control apparatus using digital network - Google Patents

Description

  The present invention relates to a data reproduction system, a data reproduction method, and a resume reproduction control device using a digital network, and more particularly, to one or more AV (Audio Visual) source devices and a plurality of output devices connected by a digital network, The present invention is suitable for use in a system configured such that an arbitrary audio / video source (AV source) can be viewed with a plurality of output devices.

  Conventionally, one or more AV source devices and a plurality of output devices (such as monitors and headphones) are connected via a digital network, and data that can be viewed with any AV source using the plurality of output devices. A playback system is provided. As a representative example, a plurality of monitors and a plurality of headphones are installed in the rear seat of a vehicle, and an AV source such as a TV, a DVD (Digital Versatile Disk), a CD (Compact Disc) is played, There is a rear entertainment system that can be enjoyed.

  In this type of data reproduction system, each monitor is equipped with an infrared light receiving unit for receiving a remote control signal, and the user operates the remote control toward each monitor, so that a desired AV source is provided for each individual user. You can select and watch. At this time, it is possible for a plurality of users to view different AV sources on each output device, or to view the same AV source.

On the other hand, when playing an AV source from a disk medium such as a CD or DVD, the stop position on the disk when playback is stopped is stored, and playback is started from the stop position at the next playback. There is a playback device having a so-called resume function (see, for example, Patent Document 1).
JP 2004-62931 A

  In a data reproduction system using a digital network as typified by the above-mentioned rear entertainment system, the position at which reproduction is stopped may be different for each individual user, so it is necessary to store the reproduction stop position for each user. In Patent Document 1, a playback stop position is stored for each user, and a playback stop position of each user is reproduced even when a plurality of users play a disc by inputting a user name and a password for playback. It is disclosed that playback can be started from the beginning.

  However, Patent Document 1 discloses a video camera, which includes only one monitor. Therefore, it is impossible for a plurality of users to view the same disc simultaneously on a plurality of monitors. On the other hand, in a rear entertainment system equipped with a plurality of output devices, a plurality of users view the same disc on a plurality of output devices, and after each stops viewing at an arbitrary position, each of them has an arbitrary timing. It is possible to resume viewing the same disc. The above-mentioned patent document 1 does not teach at all how to perform resume reproduction under such a complicated environment.

  The present invention has been made in view of such a situation. In a data reproduction system in which one or more AV source devices and a plurality of output devices are connected via a digital network, each user (output device) is provided. The purpose is to make it possible to properly realize the resume playback function of each).

  In order to solve the above-described problems, in the present invention, when it is instructed to resume viewing of the same AV source by a plurality of output devices, playback of the AV source is performed based on the viewing stop position information of which output device. Select one viewing stop position information from among a plurality of viewing stop position information corresponding to a plurality of output devices that are instructed to resume viewing of the same AV source. The playback of the AV source is started based on the viewing stop position information.

  In another aspect of the present invention, when the AV source is reproduced to the position based on the viewing stop position information that has not been selected, the same AV source is viewed on the output device corresponding to the viewing stop position information that has not been selected. If not, it is notified that playback has been performed up to the position based on the viewing stop position information that has not been selected, or the same AV source is output to the output device corresponding to the viewing stop position information that has not been selected. I try to do it.

  According to the present invention configured as described above, when a plurality of output devices are instructed to resume viewing of different AV sources, based on the viewing stop position information stored in the storage medium for each output device. Thus, playback can be started from the previous stop position of each AV source. On the other hand, when a plurality of output devices are instructed to resume viewing of the same AV source, the mediation of which output device starts playback of the AV source is performed based on the viewing stop position information of which output device. AV source playback is started based on the one viewing stop position information. As a result, even when the previous viewing stop positions of the plurality of output devices instructed to resume viewing of the same AV source are different from each other, any one of them can be selected and resume playback can be appropriately performed.

  As described above, when viewing / listening position information corresponding to any one of the output devices is selected and AV source playback is started, playback of the AV source from a position different from the original previous viewing stop position is performed on the other output devices. Will be started. If the playback portion is the portion that has already been viewed last time, the user using the other output device may switch to viewing of another AV source. Even in such a case, according to another feature of the present invention, when playback of the AV source is performed to the original previous viewing stop position for the other output device, the fact is notified or the viewing is performed until then. It is automatically switched from the other AV source that has been used and output to another output device. As a result, even when the previous viewing stop positions of the plurality of output devices instructed to resume viewing of the same AV source are different from each other, the user of any output device can start viewing from the previous viewing stop position that suits him / her. You can resume.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a configuration example of a main part of a data reproduction system using a digital network according to the present embodiment. Here, an in-vehicle rear entertainment system is shown as an example of a data reproduction system.

  In FIG. 1, 1 is a first CD player that plays a CD, 2 is a second CD player that plays a CD, 3 is a first DVD player that plays a DVD, and 4 is a second DVD that plays a DVD. It is a player. These CD players 1 and 2 and DVD players 3 and 4 correspond to the source device of the present invention.

  Many rear entertainment systems include a radio tuner that receives and reproduces AM / FM broadcasts, and a TV tuner that receives and reproduces television broadcasts, in addition to CD players and DVD players. However, since the present embodiment relates to the resume reproduction function of the disc media, illustration of AV source devices not related to the disc media is omitted.

  5 is a left and right front speaker provided near the front seat of the vehicle, 6 is an L rear display provided on the left side of the rear seat (the back side of the left front seat), and 7 is a right side of the rear seat (the back side of the right front seat). It is R rear display provided in. These front speaker 5, L rear display 6, and R rear display 7 correspond to the output device of the present invention.

  The L rear display 6 includes a speaker 6a for outputting sound, a monitor unit 6b for displaying images, an infrared light receiving unit 6c for receiving various operation codes from the remote controller 8 by infrared rays, and an earphone jack 6d for attaching earphones and headphones. I have. Similarly, the R rear display 7 has a speaker 7a for outputting sound, a monitor unit 7b for displaying images, an infrared light receiving unit 7c for receiving various operation codes from the remote controller 8 by infrared rays, and an earphone jack to which earphones and headphones can be attached. 7d.

  Reference numeral 10 denotes a center unit corresponding to the resume playback control device of the present invention, which is connected to AV source devices such as CD players 1 and 2 and DVD players 3 and 4 via a digital network. Input audio source signals and video source signals. The center unit 10 is connected to output devices such as a front speaker 5, an L rear display 6, and an R rear display 7 through a digital network, and an audio signal selected and processed from various AV sources. The video signal is output to the output device.

  In the internal configuration of the center unit 10, reference numeral 11 denotes a front speaker selector, which includes an audio source selector 11a. The audio source selector 11a inputs various audio source signals of the first CD, the second CD, the first DVD, and the second DVD, and selects one of the audio source signals according to the control of the controller 17 described later. And output.

  An L rear display selector 12 includes an audio source selector 12a and a video source selector 12b. The audio source selector 12a inputs various audio source signals of the first CD, the second CD, the first DVD, and the second DVD, and selects and outputs any audio source signal according to the control of the controller 17. To do. The video source selector 12 b receives various video source signals of the first DVD and the second DVD, selects one of the video source signals according to the control of the controller 17, and outputs it. The audio source signal and the video source signal selected here are of the same type (reproduced from one AV source device).

  Reference numeral 13 denotes an R rear display selector, which includes an audio source selector 13a and a video source selector 13b. The audio source selector 13a inputs various audio source signals of the first CD, the second CD, the first DVD, and the second DVD, selects any audio source signal according to the control of the controller 17, and outputs it. To do. The video source selector 13 b receives various video source signals of the first DVD and the second DVD, selects one of the video source signals according to the control of the controller 17, and outputs it. The audio source signal and the video source signal selected here are of the same type (reproduced from one AV source device).

  Reference numeral 14 denotes a front speaker signal processing unit which performs predetermined signal processing on the audio source signal selected by the audio source selector 11 a under the control of the controller 17. The audio source signal processed by the signal processing unit 14 is output from the front speaker 5.

  An L rear display signal processing unit 15 performs predetermined signal processing on the audio source signal selected by the audio source selector 12a and the video selected by the video source selector 12b under the control of the controller 17. Predetermined signal processing is performed on the source signal. The audio source signal processed by the signal processing unit 15 is output from the speaker 6 a or the earphone jack 6 d of the L rear display 6, and the video source signal is output to the monitor unit 6 b of the L rear display 6.

  Reference numeral 16 denotes an R rear display signal processing unit which performs predetermined signal processing on the audio source signal selected by the audio source selector 13a and the video selected by the video source selector 13b under the control of the controller 17. Predetermined signal processing is performed on the source signal. The audio source signal processed by the signal processing unit 16 is output from the speaker 7a or the earphone jack 7d of the R rear display 7, and the video source signal is output to the monitor unit 7b of the R rear display 7.

  Reference numeral 18 denotes an operation unit, which includes operation keys for performing various operations related to the center unit 10. For example, a power key for turning on / off the power, a source selection key for selecting an input source signal, and the like are provided. When the passenger sitting in the front seat selects the AV source, the operation unit 18 is used. The above-described remote controller 8 also includes a source selection key for performing an input source signal selection operation. When the passenger sitting in the rear seat selects the AV source, the remote controller 8 is used.

  The controller 17 controls the entire system including playback processing of the AV source in each AV source device 1 to 4 and output processing of the played back AV source to the output devices 5 to 7. Corresponds to means. Specifically, the controller 17 controls the AV source device selected from among the AV source devices 1 to 4 by operating the operation unit 18 and the source selection key of the remote controller 8.

  Further, the controller 17 controls the front speaker selector 11, the L rear display selector 12, and the R rear display selector 13 so as to select the AV source signal output from each selected AV source device. . At this time, each of the selectors 11 to 13 can independently select an arbitrary AV source signal. Different AV source signals can be selected by a plurality of selectors, or the same AV source signal can be selected. The controller 17 controls the operation of each signal processing unit 14-16.

  Furthermore, the controller 17 also executes control related to the resume playback function of each AV source device 1 to 4. Specifically, the controller 17 records stop position information when the viewing of the AV source is stopped in each of the output devices 5 to 7 in the memory 19 for each of the plurality of output devices 5 to 7. The viewing stop position information can be acquired from the AV source devices 1 to 4 when the controller 17 receives a stop instruction signal from the remote controller 8 or the operation unit 18. Thus, the controller 17 also constitutes the recording means of the present invention. At the next start of viewing, the controller 17 starts playback of the AV source from the previous viewing stop position corresponding to each of the output devices 5 to 7 based on the viewing stop position information stored in the memory 19. To control.

  The memory 19 has a resume table 19a for storing and managing viewing stop position information for each of the output devices 5-7. FIG. 2 is a diagram showing a configuration example of the resume table 19a. As shown in FIG. 2, the resume table 19 a is displayed for each output device of the front speaker 5, the L rear display 6, and the R rear display 7, when the disc ID, the disc media title information, and the previous viewing are stopped. Viewing stop position information consisting of time information and address information corresponding to the reproduction position in FIG. The disk ID is an ID unique to each disk medium and is included in the management information stored in the lead-in area of the disk medium. Title information is also included in this management information.

  In the example of the resume table 19a shown in FIG. 2, a disk medium with a disk ID = # A (for example, CD # A inserted in the first CD player 1) is selected for the front speaker 5, and the AV source is selected. It is shown that the viewing is stopped when 10 minutes have passed since the viewing was started. Also, a disc medium having the same disc ID = # B (for example, DVD # B inserted in the first DVD player 3) is selected for the L rear display 6 and the R rear display 7, and the AV source of the AV source is selected. It is shown that the viewing is stopped on the R rear display 7 when 18 minutes have elapsed from the start of viewing, and the viewing is stopped on the L rear display 6 when 25 minutes have elapsed.

  When one AV source is selected by only one output device, the AV source viewing stop means the playback stop of the corresponding AV source device. According to the example of FIG. 2, since the AV source of CD # A is output only to the front speaker 5, stopping viewing of CD # A by the front speaker 5 means that the first CD player 1 This means that the playback operation is stopped. When the playback stop button of the operation unit 18 is pressed, the controller 17 determines whether or not the AV source instructed to stop is output to other output devices. Control to stop the playback operation of the AV source device.

  On the other hand, when one AV source is selected by a plurality of output devices, stopping the viewing of the AV source does not immediately mean stopping the playback of the corresponding AV source device. That is, according to the example of FIG. 2, the AV source of DVD # B is output to both the L rear display 6 and the R rear display 7. Therefore, even if the playback stop button on the remote control 8 is operated to first stop viewing the DVD # B on the R rear display 7, the playback operation of the first DVD player 3 is not stopped and the DVD # B is not stopped. The playback itself needs to continue. In this case, the controller 17 controls the R rear display selector 13 so that the reproduction signal of DVD # B is not output to the R rear display 7.

  Thereafter, when the playback stop button of the remote control 8 is operated to instruct the L rear display 6 to stop viewing the DVD # B, the controller 17 stops the playback operation of the first DVD player 3. Control. That is, when the playback stop button of the remote controller 8 is pressed, the controller 17 determines whether or not the AV source instructed to stop is output to other output devices. The output of the AV source signal is stopped by controlling the L rear display selector 12 or the R rear display selector 13. If the AV source instructed to be stopped is not output to another output device, control is performed so as to stop the playback operation of the corresponding AV source device.

  Thus, according to the example of FIG. 2, the same DVD #B is viewed on both the L rear display 6 and the R rear display 7, and the viewing is stopped at different timings. Thereafter, the same DVD # B can be viewed again on both the L rear display 6 and the R rear display 7. In this case, the controller 17 executes resume reproduction control based on the viewing stop position information stored as shown in FIG. In this way, when a plurality of output devices are instructed to resume viewing of the same AV source, the controller 17 adjusts which output device starts playback of the AV source based on the viewing stop position information. Do.

  For example, when it is instructed almost simultaneously to resume viewing of the same AV source with a plurality of output devices, the controller 17 lapses from the beginning of the plurality of viewing stop position information corresponding to the plurality of output devices. The viewing stop position information with the shortest time is selected, and the AV source device is controlled to start playback of the AV source based on the selected viewing stop position information. In the example of FIG. 2, since the R rear display 7 stops viewing when the elapsed time from the beginning is shorter than the L rear display 6, it is based on the viewing stop position information of the R rear display 7. The first DVD player 3 is controlled to start playback of DVD # B.

  However, this alone will be unfriendly to the user of the L rear display 6. For the user of the L rear display 6, since the part reproduced based on the viewing stop position information on the R rear display 7 is the part that has already been viewed, it may be switched to another AV source to start viewing. However, it is only time-spent viewing, and if playback has progressed to the place where you stopped watching last time, you may want to watch DVD # B.

  Therefore, the controller 17 monitors whether or not the DVD #B has been played to a position based on the viewing stop position information of the L rear display 6 that was not selected during the resume playback. Then, when playback has proceeded to that position, it is checked whether or not DVD # B is being viewed on the L rear display 6. This can be determined based on whether or not the source signal of DVD # B is selected in the L rear display selector 12.

  Here, if the same DVD # B as that on the R rear display 7 has not been viewed on the L rear display 6, the DVD # B is reproduced to a position based on the viewing stop position information on the L rear display 6. Notify that. For example, it is possible to output a message with character information to the monitor unit 6b of the L rear display 6, or to output a message with audio information from a speaker 6a or an earphone jack 6d. In this case, the controller 17 constitutes notification means of the present invention.

  Further, the controller 17 displays the L rear display when the same DVD #B as the R rear display 7 is reproduced up to the position based on the viewing stop position information of the L rear display 6 that was not selected during the resume reproduction. 6, when the same DVD # B is not viewed, the L rear display selector 12 is controlled so that the source signal of DVD # B is automatically switched to be output to the L rear display 6. May be.

  Further, when it is instructed with a time difference to resume viewing of the same AV source with a plurality of output devices, the controller 17 includes, among the plurality of viewing stop position information corresponding to the plurality of output devices, First, viewing stop position information corresponding to the designated output device is selected, and the AV source device is controlled to start playback of the AV source based on the selected viewing stop position information. For example, if the L rear display 6 is instructed to start viewing first, playback of the AV source is started based on the viewing stop position information of the L rear display 6, and the R rear display 7 is If an instruction to start viewing is given first, the AV source device is controlled to start playback of the AV source based on the viewing stop position information of the R rear display 7.

  However, if the viewing stop position information of the one that is instructed later is shorter than the viewing stop position information of the one that is instructed first, the user who has instructed later views the middle part It becomes impossible to do. For example, in the example of FIG. 2, if the L rear display 6 gives an instruction to start viewing before the R rear display 7, based on the viewing stop position information of the L rear display 6, Playback of DVD # B starts at an elapsed time of 25 minutes. Therefore, when viewing is started on the R rear display 7 after that, it can be viewed only from the place where it has already been played, and the viewing on the R rear display 7 starts from the elapsed time from the beginning of 18 minutes. The part up to where the instruction is issued cannot be viewed.

  Therefore, the controller 17 is instructed to start viewing later when the later viewing stop position information is shorter than the first viewing stop position information than the first viewing stop position information. At the time, the AV source device may be controlled so as to be played back to a position corresponding to the viewing stop position information with a shorter elapsed time from the beginning. In the previous example, based on the viewing stop position information on the R rear display 7, playback starts retroactively up to 18 minutes. At this time, a message indicating that the data should be played back may be output to the monitor unit 6b, the speaker 6a, and the earphone jack 6d of the L rear display 6.

  In this way, after the reproduction is started retroactively to the position corresponding to the viewing stop position information on the R rear display 7, when it is instructed almost simultaneously to resume viewing of the same AV source by a plurality of output devices. It suffices to operate similarly.

  Next, the operation at the time of resume reproduction by the rear entertainment system of the present embodiment configured as described above will be described. FIG. 3 is a flowchart showing an operation example during resume reproduction according to the present embodiment. In FIG. 3, the controller 17 first determines whether or not an instruction to start viewing of the AV source has been given by the operation of the remote controller 8 or the operation unit 18 (step S1). If there is no instruction, the process of step S1 is repeated.

  When it is determined that any one of the output devices is instructed to start viewing the AV source, the controller 17 determines whether or not another output device has been instructed to start viewing the AV source at almost the same timing. Is determined (step S2). Here, when it is determined that it is instructed to start viewing AV sources with a plurality of output devices almost simultaneously, the controller 17 further determines whether or not they are the same AV source (step S3).

  If the AV sources instructed to start viewing by the plurality of output devices are not the same, the controller 17 selects the viewing stop position information stored in the resume table 19a of the memory 19 for each (step S4). Resume playback of each AV source is executed based on the selected viewing stop position information (step S5). Then, the reproduced AV source signals are output to the respective output devices, and the process returns to step S1.

  If the viewing stop position information corresponding to the output device is not stored in the resume table 19a of the memory 19, playback is started from the beginning of the disc medium. Further, even when the viewing stop position information is stored in the resume table 19a of the memory 19, a disc medium having an ID different from the disc ID included in the viewing stop position information is inserted in the AV source device. Playback starts from the beginning of the disc media.

  On the other hand, if the sources for which viewing is instructed by the plurality of output devices are the same, the controller 17 sets the most elapsed time from the beginning among the plurality of viewing stop position information corresponding to the plurality of output devices. Short viewing stop position information is selected (step S6), and resume playback of the AV source is executed based on the selected viewing stop position information (step S7). Then, one reproduced AV source signal is output to each output device.

  Here again, when the viewing stop position information corresponding to the output device is not stored in the resume table 19a of the memory 19, playback is started from the beginning of the disc medium. Further, even when the viewing stop position information is stored in the resume table 19a of the memory 19, a disc medium having an ID different from the disc ID included in the viewing stop position information is inserted in the AV source device. Playback starts from the beginning of the disc media.

  After executing the resume playback, the controller 17 determines whether or not the AV source has been played back to a position based on the viewing stop position information that was not selected during the resume playback (step S8). When it is determined that the reproduction has proceeded to that position, it is further determined whether or not the same AV source is being viewed on another output device corresponding to the viewing stop position information that has not been selected (step S9). .

  Here, when the same AV source has not been viewed in another output device (the same AV source was initially selected, but after the resume playback in step S7, the other AV source was switched to the viewing. In the case, the controller 17 notifies that the AV source has been reproduced up to the position based on the viewing stop position information corresponding to the other output device (step S10). Upon receiving this notification, a user using another output device can operate the operation unit 18 or the remote controller 8 to switch to the original AV source for viewing. As described above, instead of notifying in step S10, the original AV source may be automatically switched.

  After the controller 17 performs the notification process, the process returns to step S1. If the same AV source is viewed on another output device, the process returns to step S1 without performing the notification process in step S10.

  When it is determined in step S2 that it is not instructed to start viewing AV sources at a plurality of output devices almost simultaneously, the controller 17 resumes the memory 19 for the output device instructed to start viewing in step S1. The viewing stop position information stored in the table 19a is selected (step S11), and the resume playback of the AV source is executed based on the selected viewing stop position information (step S12). Then, the reproduced AV source signal is output to the corresponding output device.

  Here again, when the viewing stop position information corresponding to the output device is not stored in the resume table 19a of the memory 19, playback is started from the beginning of the disc medium. Further, even when the viewing stop position information is stored in the resume table 19a of the memory 19, a disc medium having an ID different from the disc ID included in the viewing stop position information is inserted in the AV source device. Playback starts from the beginning of the disc media.

  After executing the resume reproduction, the controller 17 determines again whether or not an instruction to start viewing of the AV source is given by the operation of the remote controller 8 or the operation unit 18 (step S13). If there is no instruction, the process of step S13 is repeated. On the other hand, when it is determined that any of the output devices is instructed to start viewing the AV source, the controller 17 further determines whether or not the AV source is the same as the AV source that is already being resumed. (Step S14).

  In this way, if the AV sources instructed to start viewing are not the same among the plurality of output devices with a time difference, the controller 17 stores in the resume table 19a of the memory 19 regarding the output device instructed to be viewed later. The stored viewing stop position information is selected (step S15), and the resume playback of the AV source is executed based on the selected viewing stop position information (step S16). Then, the reproduced AV source signal is output to the corresponding output device. Thereafter, the process returns to step S1.

  Here again, when the viewing stop position information corresponding to the output device is not stored in the resume table 19a of the memory 19, playback is started from the beginning of the disc medium. Further, even when the viewing stop position information is stored in the resume table 19a of the memory 19, a disc medium having an ID different from the disc ID included in the viewing stop position information is inserted in the AV source device. Playback starts from the beginning of the disc media.

  On the other hand, if the sources for which viewing is instructed by the plurality of output devices with the time difference are the same as each other, the controller 17 indicates that the viewing stop position information that was later instructed in step S13 is the first in step S1. It is determined whether the elapsed time from the beginning is shorter than the viewing stop position information of the one instructed in (Step S18). If it is shorter, the viewing stop position information whose elapsed time is shorter is selected again (step S18), and resume playback of the AV source is executed based on the selected viewing stop position information (step S19). Then, the reproduced AV source signal is output to each output device. Thereafter, the process returns to step S8.

  If the viewing stop position information that was later instructed in step S13 is longer than the first viewing stop position information that was first instructed in step S1, the process proceeds to steps S18 and S19. The process returns to step S8 without performing the process. Further, even when viewing stop position information corresponding to the output device for which viewing is instructed later is not stored in the resume table 19a of the memory 19, or when viewing stop position information is stored in the resume table 19a of the memory 19 Even when a disc medium having an ID different from the disc ID included in the viewing stop position information is inserted in the AV source device, the processing returns to the processing in step S8 without performing the processing in steps S18 and S19.

  As described above in detail, in the present embodiment, when it is instructed to resume viewing of the same AV source by a plurality of output devices, the controller 17 determines the AV source based on which output device's viewing stop position information. Arbitration on whether to start reproduction is performed, and any one viewing stop position information is selected from among a plurality of viewing stop position information corresponding to a plurality of output devices instructed to resume viewing of the same AV source. The playback of the AV source is started based on the selected viewing stop position information. Thus, even when a plurality of output devices are instructed to resume viewing of the same AV source, any one of the previous viewing stop positions can be selected and resume playback can be appropriately performed.

  In the present embodiment, when the same AV source is reproduced up to the position based on the viewing stop position information that has not been selected, the same AV source is viewed on the output device corresponding to the viewing stop position information that has not been selected. If not, it is notified that playback has been performed up to the position based on the viewing stop position information that has not been selected, or the same AV source is output to the output device corresponding to the viewing stop position information that has not been selected. I try to do it. As a result, even when the previous viewing stop positions of the plurality of output devices instructed to resume viewing of the same AV source are different from each other, the user of any output device can start viewing from the previous viewing stop position that suits him / her. You can resume.

In the above embodiment, CD and DVD are shown as examples of the disk medium, but other disk media such as MD (Mini Disc) may be used.
In the above embodiment, an example in which there are four AV source devices and three output devices has been described, but this number is merely an example.

  Moreover, although the said embodiment demonstrated and demonstrated the vehicle-mounted rear entertainment system as an example, this invention is not limited to this. Recently, development of a home network that connects a plurality of home appliances through a digital network has been underway. Even in this home network, if one or more AV source devices and a plurality of output devices are connected via a digital network and an arbitrary AV source can be viewed by the plurality of output devices, the present invention is used. It is possible to apply.

  In the above embodiment, as an example of the arbitration performed by the controller 17, an example in which viewing stop position information with the shortest elapsed time from the beginning is preferentially selected has been described, but the present invention is not limited to this. For example, priority order may be set in advance for a plurality of output devices, and viewing stop position information corresponding to a higher priority order may be preferentially selected.

  In the above embodiment, the output device in which the viewing stop position information is not selected may switch to another AV source for viewing, and then the original AV source is reproduced up to the position based on the own viewing stop position information. It has been explained that it is possible to switch back to the original AV source and watch it when it has progressed. In this case, when switching back to the original AV source, the viewing stop position information may be stored in the memory 19 for other AV sources that have been viewed until then. In this way, resume playback can be performed even when switching from the original AV source to another AV source for viewing again.

  In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. In other words, the present invention can be implemented in various forms without departing from the spirit or main features thereof.

  The present invention provides a data reproduction system in which one or more AV source devices and a plurality of output devices are connected via a digital network so that an arbitrary AV source can be viewed by the plurality of output devices. Useful.

It is a figure which shows the principal part structural example of the data reproduction system using the digital network by this embodiment. It is a figure which shows the structural example of the resume table by this embodiment. It is a flowchart which shows the operation example at the time of resume reproduction | regeneration by this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st CD player 2 2nd CD player 3 1st DVD player 4 2nd DVD player 5 Front speaker 6 L rear display 6a L rear display speaker 6b L rear display monitor 6c L rear Infrared light receiving unit of display 6d L rear display earphone jack 7 R rear display 7a R rear display speaker 7b R rear display monitor unit 7c R rear display infrared receiving unit 7d R rear display earphone Jack 8 Remote control 10 Center unit 11 Front speaker selector 12 L Rear display selector 13 R Rear display selector 14 Front speaker signal processing unit 15 L Rear display signal processing unit 16 R Rear Display Signal Processing Unit 17 Controller 18 Operation Unit 19 Memory 19a Resume Table

Claims (8)

A data reproduction system in which one or more source devices and a plurality of output devices are connected via a digital network so that one audio / video source can be reproduced and simultaneously viewed by the plurality of output devices. And
Recording means for recording stop position information when the viewing of the audio / video source is stopped on a storage medium for each of the plurality of output devices;
Control of the entire system including reproduction processing of audio / video sources in the one or more source devices and output processing of reproduced audio / video sources to the plurality of output devices, and output stored in the storage medium Control means for controlling to start reproduction of the audio / video source from the previous stop position corresponding to each output device based on the viewing stop position information for each device;
When the control means is instructed to resume viewing of the same audio / video source from a plurality of output devices, the control means determines which output device to start playback of the audio / video source based on the viewing stop position information. A data reproduction system using a digital network characterized by mediation. The control means selects the viewing stop position information having the shortest elapsed time from the beginning among the plurality of viewing stop position information corresponding to the plurality of output devices instructed to resume viewing of the same audio / video source. 2. The data reproduction system using a digital network according to claim 1, wherein reproduction of the audio / video source is started based on the selected viewing stop position information. When the same audio / video source is reproduced up to a position based on the viewing stop position information not selected by the control means, the same audio / video source is output in the output device corresponding to the unselected viewing stop position information. 3. The digital network according to claim 2, further comprising notification means for notifying that playback has been performed up to a position based on the non-selected viewing stop position information when the user has not been viewed. Data reproduction system. When the same audio / video source is reproduced up to a position based on the viewing stop position information not selected, the control means outputs the same audio / video in the output device corresponding to the viewing stop position information not selected. 3. The digital signal according to claim 2, wherein when the source is not viewed, control is performed so that the same audio / video source is output to an output device corresponding to the viewing stop position information not selected. Data reproduction system using network. A data reproduction method in a system in which one or more source devices and a plurality of output devices are connected via a digital network so that one audio / video source can be reproduced and simultaneously viewed by the plurality of output devices. Because
A first step of determining whether or not the control means is instructed to resume viewing of the same audio / video source on a plurality of output devices;
When the control means determines that the plurality of output devices are instructed to resume viewing the same audio / video source, a plurality of viewing stop positions stored in the storage medium for each of the plurality of output devices A second step of selecting any one viewing stop position information from the information and starting reproduction of the audio / video source based on the selected viewing stop position information. How to replay data. When the same audio / video source is reproduced to a position based on the viewing stop position information that has not been selected, the same audio / video is output from the output device corresponding to the viewing stop position information that has not been selected. A third step of determining whether the source is being viewed;
When the same audio / video source is reproduced up to a position based on the unselected viewing stop position information, the same audio / video source is viewed on the output device corresponding to the unselected viewing stop position information. 6. The digital network according to claim 5, further comprising a fourth step of notifying that the information has been reproduced up to a position based on the non-selected viewing stop position information when the information is not selected. Data reproduction method using When the same audio / video source is reproduced to a position based on the viewing stop position information that has not been selected, the same audio / video is output from the output device corresponding to the viewing stop position information that has not been selected. A third step of determining whether the source is being viewed;
When the same audio / video source is reproduced up to a position based on the unselected viewing stop position information, the same audio / video source is viewed on the output device corresponding to the unselected viewing stop position information. If not, the control means has a fourth step of controlling to output the same audio / video source to the output device corresponding to the unselected viewing stop position information. A data reproduction method using the digital network according to claim 5. Recording means for recording stop position information when stopping the viewing of the audio / video source in a storage medium for each of a plurality of output devices;
Control including audio / video source reproduction processing in one or more source devices and output processing of the reproduced audio / video source to the plurality of output devices, and viewing for each output device stored in the storage medium Control means for controlling to start reproduction of the audio / video source from the previous stop position corresponding to each output device based on the stop position information,
When the control means is instructed to resume viewing of the same audio / video source from a plurality of output devices, the control means determines which output device to start playback of the audio / video source based on the viewing stop position information. A resume reproduction control device that performs arbitration.

Images