发明名称 Direct sequence spread spectrum system
摘要 A direct-sequence spread spectrum communication system using a high power transmitter and a short spreading sequence which still satisfies FCC Rule 15.247 regarding power density. In addition to the spreading sequence, the carrier signal is modulated with a phase reversal sequence. Typically, each period of the phase reversal sequence has a duration equal to the total duration of the spreading sequence. The phase reversal sequence reduces the maximum power density of the signal, but is transparent to a receiver.
申请公布号 US5661750(A) 申请公布日期 1997.08.26
申请号 US19950473011 申请日期 1995.06.06
申请人 CELLNET DATA SYSTEMS, INC. 发明人 FULTON, FORREST F.
分类号 H04L27/18;(IPC1-7):H04K1/00 主分类号 H04L27/18
代理机构 代理人
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