John Willis

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Austin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Microphone bias circuit
- Patent number 7,372,967
- Issue date May 13, 2008
- SigmaTel, Inc.
- Matthew Brady Henson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variable bandgap reference
- Patent number 6,965,334
- Issue date Nov 15, 2005
- SigmaTel, Inc.
- Marcus W. May
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Variable bandgap reference and applications thereof
- Patent number 6,859,156
- Issue date Feb 22, 2005
- SigmaTel, Inc.
- Marcus W. May
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switch capacitor circuit and applications thereof
- Patent number 6,768,443
- Issue date Jul 27, 2004
- John Willis
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Input stage for an analog-to-digital converter and method of operat...
- Patent number 5,760,728
- Issue date Jun 2, 1998
- Motorola, Inc.
- Michael R. May
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Variable bandgap reference
- Publication number 20050030213
- Publication date Feb 10, 2005
- Marcus W. May
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Microphone bias circuit
- Publication number 20040208327
- Publication date Oct 21, 2004
- Matthew Brady Henson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Variable bandgap reference and applications thereof
- Publication number 20040104831
- Publication date Jun 3, 2004
- Marcus W. May
- H03 - BASIC ELECTRONIC CIRCUITRY