US 7,616,864 B2
Playback apparatus for performing application-synchronized playback
Keiichi Tanaka, Hyogo (Japan); Hidetaka Ohto, Hyogo (Japan); and Masahiro Oashi, Kyoto (Japan)
Assigned to Panasonic Corporation, Osaka (US)
Appl. No. 10/596,109
PCT Filed Jul. 21, 2005, PCT No. PCT/JP2005/013785
§ 371(c)(1), (2), (4) Date Aug. 23, 2006,
PCT Pub. No. WO2006/009305, PCT Pub. Date Jan. 26, 2006.
Claims priority of application No. 2004-214916 (JP), filed on Jul. 22, 2004; application No. 2004-268512 (JP), filed on Sep. 15, 2004; application No. 2004-293043 (JP), filed on Oct. 05, 2004; application No. 2004-369701 (JP), filed on Dec. 21, 2004; and application No. 2005-099410 (JP), filed on Mar. 30, 2005.
Prior Publication US 2007/0086727 A1, Apr. 19, 2007
Int. Cl. H04N 7/00 (2006.01)
U.S. Cl. 386—95 3 Claims
OG exemplary drawing
 
1. A playback apparatus for playing a digital stream in conjunction with an application executing in the playback apparatus, comprising:
a package manager operable to generate package information by merging a first file recorded on a first recording medium and a second file recorded on a second recording medium, in accordance with merge management information recorded on the second recording medium, the merge management information indicating the second file on the second recording medium for merging with the first file on the first recording medium;
a selector operable to detect a plurality of titles from the package information and to select one of the detected titles as a current title;
an application executor operable to execute an application associated with the current title, the application being operable to request the package manager to generate new package information using new merge management information, the new merge management information referencing a third file on the second recording medium for merging with the first file on the first recording medium; and
a playback controller operable to control playback of the digital stream associated with the current title, wherein
the package manager sets the third file to read-only when the application requests generation of the new package information, and
the package manager generates the new package information when the digital stream playback stops due to a change of the current title.