Invention Grant
- Patent Title: Direct sequence spread spectrum signal receiving device and method
- Patent Title (中): 直接序列扩频信号接收装置及方法
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Application No.: US14354064Application Date: 2011-11-16
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Publication No.: US09306619B2Publication Date: 2016-04-05
- Inventor: Robert Gach , Dominique Delbecq
- Applicant: Robert Gach , Dominique Delbecq
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- International Application: PCT/IB2011/003023 WO 20111116
- International Announcement: WO2013/072715 WO 20130523
- Main IPC: H04B1/709
- IPC: H04B1/709 ; H04B1/7075 ; H04B7/08

Abstract:
A direct-sequence spread spectrum signal receiving device may comprise a receiver unit, a chip sequence generating unit, a correlation unit, and comparison unit. The receiver unit may extract a chip stream from a radio-frequency signal, said chip stream containing a first chip sequence. The chip sequence generating unit may generate a plurality of trial chip sequences on the basis of a first trial chip sequence and on the basis of a plurality of index rotations. The correlation unit may determine a plurality of correlation values on the basis of said plurality of trial chip sequences and on the basis of said first chip sequence, each of said correlation values indicating a degree of correlation between a respective one of said trial chip sequences and said first chip sequence. The comparison unit may determine whether a maximum one of said correlation values exceeds a defined threshold value.
Public/Granted literature
- US20140254637A1 DIRECT SEQUENCE SPREAD SPECTRUM SIGNAL RECEIVING DEVICE AND METHOD Public/Granted day:2014-09-11
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