Reproduction device, reproduction method and program for reproducing graphic data and application in association with each other
A technology for synchronization of applications and applications, applied in the directions of data recording, digital recording/reproduction, electronic editing of digitized analog information signals, etc., can solve problems such as user vibration, and achieve the effect of preventing disturbing screen display and freezing the entire system operation
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no. 1 example
[0137]
[0138] figure 1 The structure of a BD-ROM (hereinafter referred to as "BD") is shown. Similar to other discs such as optical discs typified by DVDs and CDs, BD discs have a recording area in the form of a spiral extending outward from near the center of the disc. The recording area is composed of a lead-in area, a lead-out area and a logical space. The lead-in area and lead-out area are located on the inner and outer radii of the disc, respectively. The logical address space is located between the lead-in area and the lead-out area, and is used to record logical data. BD discs also have a specific space called BCA (Burn-in Area), located inside the lead-in area. BCA cannot be read by any application, so BCA is often used for copyright protection.
[0139] The logical address space stores file system information (volumes) ahead of application data, such as video data. The file system can conform to UDF (Universal Disk Format) or ISO9660. Similar to a typical pe...
no. 2 example
[0219] A second embodiment of the present invention relates to an improvement in the execution control of an application program during trickplay.
[0220] Figure 22 The structures of the DVD-like module 313 and the Java module 314a according to the second embodiment are shown. Furthermore, the structure shown in the figure relates to a process performed in response to a user operation requesting trickplay, such as fast-forward playback, fast-reverse playback, chapter search, time search, and the like. First, a description is provided of playback control and trick-play control performed by the DVD-like module 313 .
[0221] The script program 2201 is a BD playback program recorded on the BD-ROM and used in the DVD-like mode. The script program 2201 invokes the script control function provided by the script control module 2202 to cause a conditional branch as defined in the playlist.
[0222] The script control module 2202 provides script control functions.
[0223] The UO...
no. 3 example
[0301] The third embodiment of the present invention is based on the second embodiment and additionally implements delayed activation and termination of application programs in response to user operations related to trickplay. To this end, during trickplay, in response to script transitions, the state of each application is stored, and the application is activated or terminated according to the state of the application when the trickplay ends.
[0302] Figure 43 is a block diagram showing the detailed structures of the Java module 314b and the application manager 402b according to the third embodiment. As shown in the figure, the delay control management module 411 is additionally provided for Figure 26 of the structure shown in . Figure 43 The structure shown involves execution control of applications based on trickplay, such as fast-forward playback, fast-reverse playback, chapter seek, and time seek.
[0303] When the Java application program 414 executes special effe...
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