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.
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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 |
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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