Invention Grant
- Patent Title: Video information recording medium which can be accessed at random, recording method, reproduction device, and reproducing method
- Patent Title (中): 可以随机访问的视频信息记录介质，记录方法，再现设备和再现方法
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Application No.: US10569603Application Date: 2005-06-21
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Publication No.: US07706668B2Publication Date: 2010-04-27
- Inventor: Tomoaki Ryu , Kazuhiko Nakane , Masaaki Shimada , Yoshihisa Yamada
- Applicant: Tomoaki Ryu , Kazuhiko Nakane , Masaaki Shimada , Yoshihisa Yamada
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee: Mitsubishi Denki Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2004-195476 20040701; JP2004-205250 20040712; JP2004-214080 20040722; JP2004-229683 20040805
- International Application: PCT/JP2005/011342 WO 20050621
- International Announcement: WO2006/003814 WO 20060112
- Main IPC: H04N7/26
- IPC: H04N7/26
Abstract:
Access point pictures designated as randomly accessible positions are I pictures or P pictures. Information indicating the decoding sequence (I1, P1, B1, B2, B3, B4, P2, . . . ) of pictures functioning as access points and attribute information (picture_type) indicating whether a picture functions as an access point or is necessary for decoding of the access point following a given access point are recorded on the video information recording medium. Random access is possible even if the GOP interval is lengthened.
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