- 专利标题: Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signal
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申请号: US09893983申请日: 2001-06-29
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公开(公告)号: US06757478B2公开(公告)日: 2004-06-29
- 发明人: Hitoaki Owashi , Hiroo Okamoto , Kyoichi Hosokawa , Takaharu Noguchi
- 申请人: Hitoaki Owashi , Hiroo Okamoto , Kyoichi Hosokawa , Takaharu Noguchi
- 优先权: JP07-103431 19950427; JP07-103432 19950427
- 主分类号: H04N576
- IPC分类号: H04N576
摘要:
A method and apparatus is provided for receiving and/or reproducing a digital signal, capable of efficiently recording a compressed, packeted digital signal and inhibiting a copy thereof. An input packet signal is added with a time stamp indicating a relative time of an arrival of the packet, and the packet signals of digital information with the added time stamps are recorded at reduced intervals therebetween. In reproducing, a packet interval adjusting circuit restores the original packet intervals in accordance with the time stamps, and then a time stamp change circuit changes at least one bit of the time stamp and thereafter outputs the digital information.