Invention Grant
- Patent Title: Processor for use as a path searcher of a spread spectrum receiver and a method of operation of the processor
- Patent Title (中): 用作扩频接收机的路径搜索器的处理器和处理器的操作方法
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Application No.: US12867496Application Date: 2008-02-22
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Publication No.: US08599905B2Publication Date: 2013-12-03
- Inventor: Dmitry Lachover , Amir Chass , Gideon Kutz
- Applicant: Dmitry Lachover , Amir Chass , Gideon Kutz
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- International Application: PCT/IB2008/050658 WO 20080222
- International Announcement: WO2009/104057 WO 20090827
- Main IPC: H04B1/69
- IPC: H04B1/69

Abstract:
A path searcher for use in a spread spectrum receiver, including a correlator for correlating a received signal in different time positions with a reference code to select for further processing time positions of the signals showing the strongest correlations, wherein the correlator is operable to obtain a correlation energy result for each time position in a set of possible time positions, a comparator for comparing the correlation energy results with each of a plurality of energy thresholds and a recorder for recording data indicating time positions for correlation energy results which are not less than the respective thresholds in different groups corresponding to the respective thresholds. Also described is a semiconductor device and a receiver incorporating the path searcher and a method of operation of the path searcher.
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