发明名称 |
Spread spectrum signal receiving apparatus. |
摘要 |
<p>A spread spectrum signal receiving apparatus comprising: a radio frequency processing circuit (32) for converting a spread spectrum signal into an intermediate frequency signal; a binary encoder (35) for encoding the intermediate frequency signal; a pseudo-random noise code generator (51); a code driver (54) for controlling the phase and the chip speed of the output of the code generator; a first multiplier (36) for multiplying the binary signal by the output of the code generator; a numerical controlled oscillator (61) for outputting first and second carrier signals; second and third multipliers (62, 63) for multiplying the output signal of the first multiplier respectively by the first and second carrier signals; first and second low-pass filters (64, 65) supplied with the output signals of the second and third multipliers respectively; and a microcomputer (100) having functions (101, 102) to produce signals for controlling the numerical controlled oscillator, and functions (103-113) to produce signals for controlling the code driver. <IMAGE> <IMAGE></p> |
申请公布号 |
EP0496354(A2) |
申请公布日期 |
1992.07.29 |
申请号 |
EP19920100935 |
申请日期 |
1992.01.21 |
申请人 |
SONY CORPORATION |
发明人 |
HORI, KATSUYA;YOSHIDA, TADAO;YAMATANI, WATARU;MORINAGA, EIICHIRO |
分类号 |
G01S1/00;H04B1/707 |
主分类号 |
G01S1/00 |
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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