Playback apparatus for performing application-synchronized playback

A technology of application program and playback device, which is applied in the directions of carrier indicating device, using detectable carrier information, using undetectable carrier information, etc., to achieve the effect of realizing playback control and expanding the width of expression

Inactive Publication Date: 2009-11-25
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, assuming that rebooting the device anywhere takes seconds to minutes of processing time, this is not something users can easily afford

Method used

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  • Playback apparatus for performing application-synchronized playback
  • Playback apparatus for performing application-synchronized playback
  • Playback apparatus for performing application-synchronized playback

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Embodiments of recording media related to the present invention are described below. First, one usage form among the implementation forms of the playback apparatus related to the present invention will be described. figure 1 A typical usage form of the playback device related to the present invention is shown. exist figure 1 Among them, the playback device related to the present invention is the playback device 200. The playback device 200 is used to provide movie works in a home theater system composed of, for example, the playback device 200 , a remote controller 300 , and a television 400 .

[0072] Typical forms of use of the playback apparatus of the present invention are as described above. Next, a recording medium for playback by the playback apparatus pertaining to the present invention will be described. In the given example, the recording medium played back by the playback apparatus pertaining to the present invention is a BD-ROM 100 (optical recording med...

Embodiment 2

[0238] This embodiment relates to improvement when performing title calling. Title invocation causes the called title to play after first pausing the current title, then resume the original title after playback of the called title has ended. Since title calling is predicated on continuing playback, the playback control engine 32 saves the system parameters for playback control stored in the PSR into the backup PSR when the title is called, and after the playback of the called title ends, Restore saved parameters to PSR.

[0239] Below is a list of system parameters stored in the PSR. PSR 0 to PSR 12 store system parameters showing playback status, PSR 13 to PSR 19 store system parameters set as preferred by the player, and PSR 20 to PSR 32 are backup PSRs.

[0240] PSR0: I graphics stream number

[0241] PSR1: audio stream number

[0242] PSR2: P graphics stream / TextST stream number

[0243] PSR3: angle number

[0244] PSR4: current title number

[0245] PSR5: current c...

Embodiment 3

[0281] The present embodiment relates to a method for managing versions of merge management information and specifying additional content for merge from a resident application in a playback device. Figure 35 Typical contents of the merge management information file related to this embodiment are shown. In Embodiment 1, the merge management information file (or more precisely the merge management information stored therein) is updated by rewriting the old merge management information, thereby causing the old information to be erased. In this embodiment, new merge management information is continuously added to the file, and old information is not rewritten even for the same disc ID. Thus, if the virtual file system unit 38 cancels the generation of the virtual package and reverts to the original BD-ROM, information reflecting this state is retained in the merge management information file. In this case, the corresponding unit in the merge target directory of the merge managem...

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PUM

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Abstract

A playback apparatus for playing a digital stream in conjunction with an application includes a package management unit operable to generate package information by merging files recorded on a first recording medium and a second recording medium, in accordance with merge management information, and a selection unit operable to detect a plurality of playable titles from the package information, and select one of the detected titles as a current title. After the application requests the package management unit to update the merge management information, by specifying new merge management information, the package management unit changes a file referenced from the newly specified merge management information to read-only before updating the package information, and at a point at which digital stream playback stops due to a current title change by the selection unit, the package management unit generates new package information by combining files recorded on the first and second recording media, in accordance with the newly specified merge management information.

Description

[0001] This application is a divisional application filed on July 21, 2005 with application number 200580024823.7 and titled "Playback Apparatus for Executing Synchronous Playback of Application Programs". technical field [0002] The invention belongs to the technical field of synchronous playback of digital streams and application programs. Background technique [0003] Application-synchronized playback is a technology for playing a digital stream while running a Java(registered trademark) application in a playback device or the like for playing video, and belongs to consumer products that will attract a large number of products manufactured in the future. Technical areas of concern. Applications and digital streams for synchronization are associated with each other in playback units called "titles". A conventional playback device is described below. A conventional playback device is composed of a virtual file system unit, a module manager, a playback unit, and a platfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B27/10G11B27/11G11B27/32G11B27/34
Inventor 田中敬一大户英隆大芦雅弘
Owner PANASONIC CORP
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