Noise elimination method and apparatus

Details Noise elimination method and apparatus Noise elimination method and apparatus

2007-02-06

2007-02-06

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S150000

Reexamination Certificate

active

10331078

ABSTRACT:
In a noise elimination method and apparatus, a spread spectrum modulation signal having a data signal and an overlapping noise component at a signal point on a time axis and a noise component at a zero point on the time axis is received. A correlation of the received modulation signal to a spread spectrum code is generated by using a correlating filter. Zero is set at points of the modulation signal other than the signal point where the correlation becomes the maximum, so that the noise component at the zero point is extracted from the modulation signal. The noise component at the signal point is predicted by performing interpolation prediction based on the extracted noise component. The noise component at the signal point is removed from the modulation signal based on the predicted noise component.

REFERENCES:
patent: 4587620 (1986-05-01), Niimi et al.
patent: 4792964 (1988-12-01), Yoshida
patent: 6426983 (2002-07-01), Rakib et al.
patent: 0 798 871 (1997-10-01), None
patent: 0 987 829 (2000-03-01), None
patent: 2000-164801 (2000-06-01), None
European Search Report dated Oct. 1, 2003, for European Application EP 02 02 9036.
Young, et al., “Analysis of DFT-Based Frequency Excision Algorithims for Direct-Sequence Spread-Spectrum Communictions” IEE Transactions on Communications, vol. 46, No. 8 Aug. 1998: pp. 1076-1087, XP002253780.

Affiliated with

Also associated with

Rating

Noise elimination method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Noise elimination method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noise elimination method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3859745