发明名称 Video signal processing apparatus, video signal playback apparatus, and video signal recording apparatus
摘要 The present invention relates to a video signal processing apparatus, a video signal playback apparatus, and a video signal recording apparatus in which illegal copying of thumbnail images can be prevented. A thumbnail encoder 19 generates a thumbnail image of a video signal input from a terminal 12. A macrovision detector 13, a CGMS detecting/updating unit 14, and a WM (watermark) detecting/updating unit 15 detect an analog copy protection signal (APS), a CGMS signal as copy generation management information, and watermark, respectively, of the video signal input from the terminal 12, and outputs them to a controller 21. The controller 21 generates copy control information of the thumbnail image based on the input copy control information. The thumbnail image and the copy control information thereof are recorded in an information recording medium 26. The present invention is applicable to a recording apparatus for recording data into an information recording medium and to a playback apparatus for playing back data recorded in an information recording medium.
申请公布号 US2004027393(A1) 申请公布日期 2004.02.12
申请号 US20030416659 申请日期 2003.05.14
申请人 KATO MOTOKI;NAKAMURA MASANOBU;MURAMATSU KATSUMI 发明人 KATO MOTOKI;NAKAMURA MASANOBU;MURAMATSU KATSUMI
分类号 G06T1/00;G11B20/00;G11B20/10;G11B27/00;G11B27/034;G11B27/10;G11B27/32;G11B27/34;H04N1/387;H04N5/91;H04N5/913;H04N9/804;H04N9/82;(IPC1-7):G09G5/00 主分类号 G06T1/00
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