发明名称 Recording apparatus and reproducing apparatus for video signals
摘要 In a reproducing apparatus, a generator circuit for adding copy information during the vertical blanking period of a reproduced video signal output is provided, and copy information in compliance with copy information contained in the reproduced signal is added and delivered. In a recording apparatus, a detection circuit for detecting copy information in an inputted video signal is provided, and permission/inhibition of copy is controlled on the basis of the detected copy information and when copy is permitted, necessary copy information is generated and added to a recording signal.
申请公布号 US5627655(A) 申请公布日期 1997.05.06
申请号 US19940331269 申请日期 1994.10.28
申请人 HITACHI, LTD. 发明人 OKAMOTO, HIROO;OKU, MASUO;NOGUCHI, TAKAHARU;ARAI, TAKAO
分类号 H04N5/76;G06F12/14;G11B20/00;H04N5/91;H04N5/913;H04N5/92;(IPC1-7):H04N5/76;G11B23/28 主分类号 H04N5/76
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