发明名称 |
Signal recording and reproducing, signal record media and signal transmission and reception |
摘要 |
A signal recording/reproducing method and apparatus, a signal record medium, and a signal transmission/reception method and apparatus enable a signal recorded on a signal record medium to be identified as being an original signal or a copied signal. A CPU (11) generates, at a pre-set time interval, an identification signal having a meaning at a pre-set time interval, and an identification signal addition circuit (3) adds the identification signal to video signals and/or audio signals. A sector forming circuit (5) and circuit components up to a recording/reproducing head (14) record the video signals and/or the audio signals and the ancillary identification signal on an optical disc (12). <IMAGE> |
申请公布号 |
EP0762417(A3) |
申请公布日期 |
1999.01.27 |
申请号 |
EP19960306006 |
申请日期 |
1996.08.16 |
申请人 |
SONY CORPORATION |
发明人 |
SAKO, YOICHIRO;KAWASHIMA, ISAO;OSAWA, YOSHITOMO;KURIHARA, AKIRA;MASUDA, SHOZO |
分类号 |
G06F1/00;G11B7/007;G11B20/00;G11B27/30;G11B27/32;H04N5/85;H04N5/913;H04N9/79;H04N9/804;H04N21/2389;H04N21/8358 |
主分类号 |
G06F1/00 |
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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