发明授权
- 专利标题: Apparatus and method for synthesizing information signal and reproduction control signal and information signal recording apparatus
- 专利标题(中): 用于合成信息信号和再现控制信号和信息信号记录装置的装置和方法
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申请号: US755101申请日: 1996-11-22
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公开(公告)号: US5982977A公开(公告)日: 1999-11-09
- 发明人: Tetsuya Naruse , Michimasa Komatsubara , Jun Iwasaki , Teruo Masaki , Kaname Mori
- 申请人: Tetsuya Naruse , Michimasa Komatsubara , Jun Iwasaki , Teruo Masaki , Kaname Mori
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX7-339959 19951204
- 主分类号: H04N5/765
- IPC分类号: H04N5/765 ; G06F21/10 ; G11B20/00 ; G11B20/10 ; H04N5/781 ; H04N5/91 ; H04N5/913 ; H04N5/92 ; H04N7/08 ; H04N7/167 ; H04N21/4367 ; H04N5/76
摘要:
A synthesis signal which was reproduced from reproducing apparatus and converted into an analog signal includes an analog information signal and a copy control code. The copy control code is modulated by a spread spectrum. A code reading unit of the recording apparatus extracts the copy control code by an inverse spread spectrum. A code changing unit changes the copy control code by a spread spectrum as necessary. An output signal of the code changing unit is converted into a digital signal. The digital signal is subjected to processes necessary for recording and is recorded to a recording medium.
公开/授权文献
- US5222894A Simulated amphibious vehicular environments 公开/授权日:1993-06-29
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