发明授权
- 专利标题: System for spread spectrum communication
- 专利标题(中): 扩频通信系统
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申请号: US09803258申请日: 2001-03-09
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公开(公告)号: US06922432B2公开(公告)日: 2005-07-26
- 发明人: Edgar H. Callaway, Jr. , Frederick L. Martin , Qicai Shi
- 申请人: Edgar H. Callaway, Jr. , Frederick L. Martin , Qicai Shi
- 申请人地址: US IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: US IL Schaumburg
- 代理商 Kenneth A. Haas
- 主分类号: H04B1/707
- IPC分类号: H04B1/707 ; H04B1/69
摘要:
A signaling system is provided in which a spread spectrum code is cyclically shifted by a cyclical shift dictated by a bit pattern of one or more bits. The cyclically shifted spread spectrum code is used to modulate a carrier frequency, and transmitted from a transmitter to a receiver. At the receiver the signal including the cyclically shifted spectrum code is demodulated to recover the cyclically shifted code. The cyclical shift is then determined and the bit pattern which is associated with the cyclical shift is output. The method can be used in direct sequence spread spectrum communication.
公开/授权文献
- US20020126738A1 System for spread spectrum communication 公开/授权日:2002-09-12
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