David H Peavey from Sundown, TX, age 78

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Compensation Of Local Oscillator Phase Jitter
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US Patent:

8489053, Jul 16, 2013
Filed:

Jan 16, 2011
Appl. No.:

13/007654
Inventors:

David Peavey - Fremont CA, US
Oren Arad - Palo Alto CA, US
Assignee:

SiPort, Inc. - Santa Clara CA
International Classification:

H04B 1/06
H04K 3/00
US Classification:

455255, 331 1 R
Abstract:

Digital logic circuitry is disclosed. The circuitry includes local oscillator drift and phase compensation logic that compensates the frequency drift and the phase noise of a local oscillator generated by a digitally controlled oscillator.

Apparatus And Method For Reducing Co-Channel Interference From A Radio Frequency Signal
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US Patent:

54123909, May 2, 1995
Filed:

Aug 24, 1993
Appl. No.:

8/110884
Inventors:

David L. Peavey - Fremont CA
Katherine A. Tieszen - Cupertino CA
Kristina Pagnini - Fremont CA
Fred E. Schader - San Jose CA
Timothy D. Stephens - Milpitas CA
Nicholas Cianos - Menlo Park CA
John R. Conkle - Los Gatos CA
Assignee:

Delfin Systems - Santa Clara CA
International Classification:

G01S 502
US Classification:

342417
Abstract:

A system for reducing co-channel interference includes a power spectrum analyzer which provides a spectral signal representative of an intermediate frequency signal from the receiver of a direction finding system. The system further includes threshold/window logic that, responsive to the comparison of threshold levels and spectral windows to the interfering signals, will provide stop and continue signals to an integrator. The integrator receives signals from the direction finding system and stops and starts integration of the output signal responsive to the threshold logic. In so doing, co-channel interference is substantially reduced.

Method And Apparatus For Adaptively Determining The Bearing Angle Of A Radio Frequency Signal
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US Patent:

54264383, Jun 20, 1995
Filed:

Dec 30, 1992
Appl. No.:

7/998391
Inventors:

David L. Peavey - Fremont CA
Katherine A. Tieszen - Cupertino CA
Timothy D. Stephens - Milpitas CA
Fred E. Schader - San Jose CA
Nicholas Cianos - Menlo Park CA
John R. Conkle - Los Gatos CA
Assignee:

Delfin Systems - Santa Clara CA
International Classification:

G01S 504
US Classification:

342433
Abstract:

A system and method for obtaining the bearing angle of radio frequency is utilized in a direction finding system to determine the signal of interest. The system utilized an adaptive interferometric processor to null out modulation occurring due to commutation between the antenna elements. Through this system the bearing angle can be determined accurately and efficiently.