Invention Grant
- Patent Title: Video information recording device and reproducing device
- Patent Title (中): 视频信息记录装置和再现装置
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Application No.: US10363750Application Date: 2002-07-12
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Publication No.: US07668436B2Publication Date: 2010-02-23
- Inventor: Motoki Kato , Masanobu Nakamura
- Applicant: Motoki Kato , Masanobu Nakamura
- Applicant Address: JP
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: JP2001-214540 20010713
- International Application: PCT/JP02/07133 WO 20020712
- International Announcement: WO03/007601 WO 20030123
- Main IPC: H04N5/76
- IPC: H04N5/76 ; H04N5/00

Abstract:
A method is provided for recording video information in which copy control information of video information is managed in the case of copying the content of data from one recording medium to another recording medium. Copy control information (CCI) or a watermark (WM) of an inputted AV stream is detected and whether the content of the copy control information or watermark has changed is determined. Change point information of the copy control information or watermark and the content of the copy control information or watermark are acquired, and management information for managing the copy control information is generated on the basis of the acquired change point information. The generated management information is recorded together with the video information to a recording medium at a copy destination.
Public/Granted literature
- US20030175013A1 Video information recording apparatus and reproducing apparatus Public/Granted day:2003-09-18
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