发明名称 |
Digital signalmottaker som kan motta data som er krypterte og sendt i direkte behandling |
摘要 |
In a decoding processing circuit of a digital signal receiver, a first comparison circuit detects that a prefix of packet data is inputted in a shift register on the basis of a count value of a counter circuit. In response to the result of detection, a pseudo-random binary sequence generation circuit outputs a pseudo-random binary sequence on the basis of a data group number and a data packet number outputted from the shift register and key data previously extracted by a key data fetch circuit. When a second comparison circuit detects that block data in the data packet is inputted in the shift register, an exclusive OR circuit exclusively ORs the pseudo-random binary sequence with receive data, so that decoded data is inputted in the shift register. |
申请公布号 |
NO963571(D0) |
申请公布日期 |
1996.08.27 |
申请号 |
NO19960003571 |
申请日期 |
1996.08.27 |
申请人 |
SANYO ELECTRIC CO LTD |
发明人 |
TOMIDA, YOSHIKAZU;HIRAMATSU, TATSUO;KIMURA, KAZUHIRO;HAYASHIBE, SHIGEAKI;OZAWA, TOSHIYUKI |
分类号 |
H04H60/23;H04H60/27;H04L7/04;H04L9/08;(IPC1-7):H04K |
主分类号 |
H04H60/23 |
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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