发明名称 Method and apparatus for receiving and/or reproducing digital signal
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.
申请公布号 US6321025(B1) 申请公布日期 2001.11.20
申请号 US20000479074 申请日期 2000.01.07
申请人 HITACHI, LTD 发明人 OWASHI HITOAKI;OKAMOTO HIROO;HOSOKAWA KYOICHI;NOGUCHI TAKAHARU
分类号 H04B7/185;H04N5/00;H04N5/44;H04N5/761;H04N5/77;H04N5/913;H04N7/16;H04N7/24;H04N9/804;(IPC1-7):H04N5/761 主分类号 H04B7/185
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