Spread spectrum receiver for restoring received symbols with...

Details Spread spectrum receiver for restoring received symbols with... Spread spectrum receiver for restoring received symbols with...

Filed on

2007-06-04

Date issued

2010-12-28

Examiner

Payne, David C (Department: 2611)

Patent Class

Pulse or digital communications

SubClass

Spread spectrum

SubSubClass

Direct sequence

Type

Reexamination Certificate

Status

active

Patent number

07860154

Description

ABSTRACT:
A spread spectrum receiver has less symbol detection error due to noise. Correlation values between an input signal and spread code sequences are produced by correlators correspondingly provided for the spread code sequences. When an optimum window width symbol detection window is open, the correlation values are compared with a correlation threshold. When the correlation values exceed the correlation threshold, symbol data of the spread code sequence corresponding to the correlator outputting the correlation value indicating the maximum correlation peak is used to demodulate received symbol data. The optimum window width of the symbol detection window is generated from the correlation values and position information of the correlation peak values. The correlation threshold is updated to the produced correlation threshold. The position information of the correlation peak values is used to adjust the symbol detection window width, thus providing the least symbol detection error.

REFERENCES:
patent: 5140538 (1992-08-01), Bass et al.
patent: 5629639 (1997-05-01), Williams
patent: 6385232 (2002-05-01), Terashima
patent: 2006/0018370 (2006-01-01), Mizuno
patent: 2002-057602 (2002-02-01), None
patent: 2004-153692 (2004-05-01), None

Affiliated with

Also associated with

Rating

Spread spectrum receiver for restoring received symbols with... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spread spectrum receiver for restoring received symbols with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spread spectrum receiver for restoring received symbols with... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4217898