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James S. Irwin
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Paige, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Cross coupled cascode voltage controlled oscillator
Patent number
6,700,451
Issue date
Mar 2, 2004
Motorola, Inc.
David S. Peckham
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optimized computation of first and second divider values for a phas...
Patent number
6,065,140
Issue date
May 16, 2000
Motorola, Inc.
James Stuart Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
CMOS implemented output buffer circuit for providing ECL level signals
Patent number
5,999,017
Issue date
Dec 7, 1999
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Adaptive phase locked loop system with charge pump having dual curr...
Patent number
5,774,023
Issue date
Jun 30, 1998
Motorola, Inc.
James Stuart Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for extracting digital information from an asy...
Patent number
5,504,751
Issue date
Apr 2, 1996
Motorola Inc.
Robert C. Ledzius
G11 - INFORMATION STORAGE
Information
Patent Grant
Sigma-delta modulator with improved tone rejection and method therefor
Patent number
5,357,252
Issue date
Oct 18, 1994
Motorola, Inc.
Robert C. Ledzius
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital-to-analog converter with a flexible data interface
Patent number
5,339,079
Issue date
Aug 16, 1994
Motorola, Inc.
Robert C. Ledzius
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for standby recovery in a phase locked loop
Patent number
5,339,278
Issue date
Aug 16, 1994
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Sigma-delta digital-to-analog converter with reduced noise
Patent number
5,323,157
Issue date
Jun 21, 1994
Motorola, Inc.
Robert C. Ledzius
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Sigma-delta digital-to-analog converter with reduced distortion
Patent number
5,231,395
Issue date
Jul 27, 1993
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digital-to-analog converter with improved performance and method th...
Patent number
5,220,326
Issue date
Jun 15, 1993
Motorola, Inc.
Robert C. Ledzius
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multi-modulator digital-to-analog converter
Patent number
5,122,799
Issue date
Jun 16, 1992
Motorola, Inc.
Robert C. Ledzius
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Phase locked loop having a charge pump with reset
Patent number
5,095,287
Issue date
Mar 10, 1992
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
.SIGMA.-.DELTA.modulator for digital-to-analog converter
Patent number
5,057,840
Issue date
Oct 15, 1991
Motorola, Inc.
Robert C. Ledzius
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Sigma-delta type analog to digital converter with trimmed output an...
Patent number
5,030,952
Issue date
Jul 9, 1991
Motorola, Inc.
Robert C. Ledzius
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Coil-less overtone crystal oscillator
Patent number
4,959,624
Issue date
Sep 25, 1990
Motorola, Inc.
Robert J. Higgins
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Loop filter modulated synthesizer
Patent number
4,952,889
Issue date
Aug 28, 1990
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Current reduction of a synthesizer
Patent number
4,935,707
Issue date
Jun 19, 1990
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System for automatically tuning the antenna of a miniature portable...
Patent number
4,862,516
Issue date
Aug 29, 1989
Motorola, Inc.
Philip P. Macnak
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus for tuning the antenna of a miniature personal communicat...
Patent number
4,817,196
Issue date
Mar 28, 1989
Motorola, Inc.
Philip P. MacNak
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Dual FET oscillator
Patent number
4,785,264
Issue date
Nov 15, 1988
Motorola, Inc.
Robert S. Kaltenecker
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
FET oscillator circuit
Patent number
4,785,263
Issue date
Nov 15, 1988
Motorola, Inc.
Robert S. Kaltenecker
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency synthesizer with improved priority channel switching
Patent number
4,559,505
Issue date
Dec 17, 1985
Motorola, Inc.
Jose I. Suarez
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Adjustable antenna arrangement for a portable radio
Patent number
4,121,218
Issue date
Oct 17, 1978
Motorola, Inc.
James Stuart Irwin
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Astable multivibrator with temperature compensation and requiring a...
Patent number
4,110,704
Issue date
Aug 29, 1978
Motorola, Inc.
James S. Irwin
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Inductor or antenna arrangement with integral series resonating cap...
Patent number
3,946,397
Issue date
Mar 23, 1976
Motorola, Inc.
James S. Irwin
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Apparatus for generating an oscillating reference signal and method...
Publication number
20020181915
Publication date
Dec 5, 2002
MOTOROLA, INC.
Ronald A. Craig
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Structure and method for fabricating dielectric resonator
Publication number
20020179935
Publication date
Dec 5, 2002
MOTOROLA, INC.
James S. Irwin
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Stacked device and method of fabricating same
Publication number
20020180048
Publication date
Dec 5, 2002
MOTOROLA, INC.
James Irwin
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Composite semiconductor structure and device with optical testing e...
Publication number
20020179930
Publication date
Dec 5, 2002
MOTOROLA, INC.
James S. Irwin
G01 - MEASURING TESTING
Information
Patent Application
Structure for an optically switched device utilizing the formation...
Publication number
20020181828
Publication date
Dec 5, 2002
MOTOROLA, INC.
James S. Irwin
G02 - OPTICS
Information
Patent Application
Structure and method for fabricating high Q varactor diodes
Publication number
20020179957
Publication date
Dec 5, 2002
MOTOROLA, INC.
Kevin B. Traylor
H01 - BASIC ELECTRIC ELEMENTS