发明名称 Synchronizing circuit in a spread spectrum communications system
摘要 By taking the product of two correlators, the present invention realizes a synchronizing method having good tracking characteristics and not requiring balance between pairs of correlator signals in a receive system for a spread spectrum communications system for a carrier band. A correlator 1 correlates the received signals and the PN signals from a PN signal generator 6 and a correlator 2 correlates the received signals, PN signals from a PN signal generator 6, and clock signals from a VCC 5. The signals of the correlator 1 and the signals of the correlator 2 are multiplied by a multiplier 3, and are passed through a low pass filter 4 so as to obtain and control signals for clock control of PN signals.
申请公布号 US5375141(A) 申请公布日期 1994.12.20
申请号 US19930077691 申请日期 1993.06.17
申请人 RICOH COMPANY, LTD. 发明人 TAKAHASHI, SATOSHI
分类号 H04J13/00;H04B1/707;(IPC1-7):H04L9/00 主分类号 H04J13/00
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