Invention Grant
- Patent Title: Recording medium for which a sub-picture can be favorably superimposed on a main image, and a reproduction apparatus and a reproduction method for the recording medium
- Patent Title (中): 副图像可以有利地叠加在主图像上的记录介质,以及用于记录介质的再现装置和再现方法
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Application No.: US10098089Application Date: 2002-03-14
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Publication No.: US06631241B2Publication Date: 2003-10-07
- Inventor: Kazuhiko Yamauchi , Kaoru Murase , Masayuki Kozuka , Shinichi Saeki , Katsuhiko Miwa
- Applicant: Kazuhiko Yamauchi , Kaoru Murase , Masayuki Kozuka , Shinichi Saeki , Katsuhiko Miwa
- Priority: JP8-114534 19960509
- Main IPC: H04N591
- IPC: H04N591

Abstract:
A multimedia optical disc for recording main video data which is composed of sets of frame data that is processed beforehand to allow compatibility with displays of a plurality of aspect ratios. The disc has a stream area storing streams made up of the main video data and a plurality of sets of sub-picture data, with each set of sub-picture data including a set of tel-op data and a set of coordinate information showing a display position of the set of tel-op data. The disc also includes a control area storing a plurality of pairings of a set of display mode information and a set of sub-picture indicating information. Each set of display mode information shows a species of display method according to which the frame data is to be processed for a case when the frame data decoded from the main video data is displayed at one of the plurality of aspect ratios. Each set of sub-picture indicating information shows a set of sub-picture data, out of the plurality of sets of sub-picture data in a same stream as the main video data, which includes a set of coordinate information which coincides with the species of display method shown by the display mode information.
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