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Edwin Ray Twitchell
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Quincy, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Hybrid polar modulator differential phase Cartesian feedback correc...
Patent number
7,409,004
Issue date
Aug 5, 2008
Matsushita Electric Industrial Co., Ltd.
Richard W. D. Booth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Configurable exciter
Patent number
6,795,492
Issue date
Sep 21, 2004
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Notch filter and method
Patent number
6,587,018
Issue date
Jul 1, 2003
Tropian, Inc.
Ronald A. Meck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Broadcast transmission system with sampling and correction arrangem...
Patent number
6,519,010
Issue date
Feb 11, 2003
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Broadcast transmission system with single correction filter for cor...
Patent number
6,501,805
Issue date
Dec 31, 2002
Harris Corporation
Edwin Ray Twitchell
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Broadcast transmission system with correction for distortion caused...
Patent number
6,473,133
Issue date
Oct 29, 2002
Harris Corporation
Edwin Ray Twitchell
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Broadcast transmission system with distributed correction
Patent number
6,335,767
Issue date
Jan 1, 2002
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive pre-equalization apparatus for correcting linear distortio...
Patent number
6,285,412
Issue date
Sep 4, 2001
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Broadcast transmission system with sampling and correction arrangem...
Patent number
6,281,936
Issue date
Aug 28, 2001
Harris Corporation
Edwin Ray Twitchell
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus for providing error correction data in a digital data tra...
Patent number
6,173,429
Issue date
Jan 9, 2001
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive pre-distortion apparatus for linearizing an amplifier outp...
Patent number
6,081,158
Issue date
Jun 27, 2000
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus with reduced A/D dynamic range requirement in a compensat...
Patent number
5,917,373
Issue date
Jun 29, 1999
Harris Corporation
Edwin Ray Twitchell
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Device and method for digital vestigial sideband modulation
Patent number
5,801,595
Issue date
Sep 1, 1998
Harris Corporation
Robert C. Davis
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Vestigial sideband test signal generator and method
Patent number
5,751,347
Issue date
May 12, 1998
Harris Corporation
Joseph Lee Seccia
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Hybrid polar modulator differential phase cartesian feedback correc...
Publication number
20020196864
Publication date
Dec 26, 2002
Richard W.D. Booth
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Broadcast transmission system with sampling and correction arrangem...
Publication number
20010038423
Publication date
Nov 8, 2001
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE