U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Spread spectrum adaptive code tracker

Patent 4550414 Issued on October 29, 1985. Estimated Expiration Date: Icon_subject April 12, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Spread spectrum apparatus for cellular mobile communication systems
Patent #: 4222115
Issued on: 09/09/1980
Inventor: Cooper ,   et al.

Passive direction finding system
Patent #: 4236159
Issued on: 11/25/1980
Inventor: Alpers

Data transmission system operating on the spread spectrum principle
Patent #: 4346475
Issued on: 08/24/1982
Inventor: Alexis

Adaptive signal processing apparatus Patent #: 4442433
Issued on: 04/10/1984
Inventor: Myers ,   et al.

Inventors

Application

No. 06/484302 filed on 04/12/1983

US Classes:

375/150, Correlation-type receiver375/343, Correlative or matched filter708/813Correlation or convolution

Examiners

Primary: Safourek, Benedict V.

Attorney, Agent or Firm

International Class

H04B 1/707 (20060101)

Abstract

A pseudo-noise code-tracking spread spectrum receiver able to quickly acquire and track incoming signals includes an adaptive weighting system for the outputs of parallel-fed correlator channels in which the weighting system automatically detects the degree of correlation in each channel, sets the detector characteristic to increase the weight for a correlator channel exhibiting a high degree of correlation, and decreases to zero the weights on all others.

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