发明名称 |
Method for scrambling and/or descrambling FM subcarrier data |
摘要 |
An FM multiple radio broadcasting receiver includes a data group number and data packet number derivation circuit by which a data group number and a data packet number included in a prefix of FM subcarrier data are derived. A first random number generator generates a first random number on the basis of the data group number, the data packet number and scramble key data which is outputted from a scramble key generation circuit, and sets the first random number in a second random number generator as its initial value. Therefore, it is possible to appropriately scramble or descramble with using packet structure of the FM subcarrier data. |
申请公布号 |
SE9601242(D0) |
申请公布日期 |
1996.03.29 |
申请号 |
SE19960001242 |
申请日期 |
1996.03.29 |
申请人 |
SANYO ELECTRIC CO LTD |
发明人 |
TATSUO *HIRAMATSU;HIRONORI *MITOH;NORIAKI *MINAMI;YOSHIKAZU *TOMIDA;KANJI *NAKANO |
分类号 |
H04K1/02;H04H20/00;H04H20/28;H04H20/55;H04H60/15;H04H60/23;H04L9/22;H04L9/24;(IPC1-7):H04K/ |
主分类号 |
H04K1/02 |
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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