Invention Grant
US08121238B2 System and method for synchronizing digital bits in a data stream
有权
用于在数据流中同步数字位的系统和方法
- Patent Title: System and method for synchronizing digital bits in a data stream
- Patent Title (中): 用于在数据流中同步数字位的系统和方法
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Application No.: US11553983Application Date: 2006-10-27
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Publication No.: US08121238B2Publication Date: 2012-02-21
- Inventor: Sundar Raman , James M. Brown
- Applicant: Sundar Raman , James M. Brown
- Applicant Address: US CA San Jose
- Assignee: CSR Technology Inc.
- Current Assignee: CSR Technology Inc.
- Current Assignee Address: US CA San Jose
- Agency: RatnerPrestia
- Main IPC: H04L7/00
- IPC: H04L7/00

Abstract:
A system and method for synchronizing a receiver of a bit stream to the bit stream include a correlator to remove the PN code modulation and to generate a stream of time sequence values (samples) from the received bits. A plurality of accumulators are included, each accumulator corresponding to an offset in a series of time intervals starting with a first time period. The accumulators add a number of values equal to a number of samples in a bit period. The values added by each accumulator is a set of values starting with the value at the offset corresponding to the accumulator. A plurality of magnitude calculators receives a sum from the corresponding accumulator and calculates a magnitude. A plurality of non-coherent summers are then used to add the magnitudes for each offset in each bit period for all of the received bits. The total sum in each non-coherent summer is then analyzed to find the highest value, such that the offset corresponding to the non-coherent summer with the highest value represents the location of the bit transition in the bit period.
Public/Granted literature
- US20080002797A1 System and Method for Synchronizing Digital Bits in a Data Stream Public/Granted day:2008-01-03
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