发明名称 |
Video recording/playback system and method for generating video data |
摘要 |
<p>A device enabling simultaneous recording and playback allows commercials to retain their advertisement function even if the commercials are skipped over during a playback process. By digital watermarking, CM-substitute data is embedded in program data among video signals broadcasted from a broadcast station. CM-substitute data is to present information such as a particular sponsor name and commodity name on display. The video recording/playback device includes a randomly accessible storage unit and has a simultaneous recording/playback capability. If commercial video is skipped over and is not rendered by playback, the CM-substitute information is superimposed on the rendered video of the program associated with the commercial. Thus, the commercial advertisement function can be retained.</p> |
申请公布号 |
EP1379083(A2) |
申请公布日期 |
2004.01.07 |
申请号 |
EP20030254064 |
申请日期 |
2003.06.26 |
申请人 |
HITACHI, LTD. |
发明人 |
TSURU, YASUTAKA;NAKAJIMA, MITSUO;MIZUHASHI, YOSHIAKI;KIMURA, KATSUNOBU;MATSUKAWA, MASAAKI |
分类号 |
G11B20/10;G11B20/12;H04N5/445;H04N5/76;H04N5/781;H04N5/85;H04N5/907;H04N5/93;H04N9/804;H04N9/82;(IPC1-7):H04N5/85;H04N5/92 |
主分类号 |
G11B20/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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