Invention Grant
- Patent Title: System for spread spectrum communication
- Patent Title (中): 扩频通信系统
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Application No.: US09803258Application Date: 2001-03-09
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Publication No.: US06922432B2Publication Date: 2005-07-26
- Inventor: Edgar H. Callaway, Jr. , Frederick L. Martin , Qicai Shi
- Applicant: Edgar H. Callaway, Jr. , Frederick L. Martin , Qicai Shi
- Applicant Address: US IL Schaumburg
- Assignee: Motorola, Inc.
- Current Assignee: Motorola, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Kenneth A. Haas
- Main IPC: H04B1/707
- IPC: H04B1/707 ; H04B1/69

Abstract:
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.
Public/Granted literature
- US20020126738A1 System for spread spectrum communication Public/Granted day:2002-09-12
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