David K. Fitzrandolph

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Phoenix, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Receiver and method for determining an intermediate frequency in a...
- Patent number 6,957,056
- Issue date Oct 18, 2005
- Motorola, Inc.
- David K. Fitzrandolph
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for detecting jamming signal
- Patent number 6,757,324
- Issue date Jun 29, 2004
- Motorola, Inc.
- David K. Fitzrandolph
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Signal presence detection
- Publication number 20070149113
- Publication date Jun 28, 2007
- David K. Fitzrandolph
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for determining time
- Publication number 20060031696
- Publication date Feb 9, 2006
- Thomas Michael King
- G04 - HOROLOGY
Information Patent Application
Method and device for detecting an interference condition
- Publication number 20040209626
- Publication date Oct 21, 2004
- David K. Fitzrandolph
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for detecting jamming signal
- Publication number 20040013170
- Publication date Jan 22, 2004
- David K. Fitzrandolph
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Receiver and method for determining an intermediate frequency in a...
- Publication number 20030186668
- Publication date Oct 2, 2003
- David K. Fitzrandolph
- H03 - BASIC ELECTRONIC CIRCUITRY