David L. Roberson

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Forest, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Technique for reducing low frequency interference noise
- Patent number 6,307,151
- Issue date Oct 23, 2001
- Ericsson, Inc.
- David L. Roberson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transmitter for pulsed electronic article surveillance systems
- Patent number 5,640,693
- Issue date Jun 17, 1997
- Sensormatic Electronics Corporation
- Brent Balch
- G08 - SIGNALLING
Information Patent Grant
Pulsed electronic article surveillance systems
- Patent number 5,512,878
- Issue date Apr 30, 1996
- Sensormatic Electronics Corporation
- Brent Balch
- G08 - SIGNALLING
Information Patent Grant
Initial synchronization and tracking circuits for spread spectrum r...
- Patent number 5,365,550
- Issue date Nov 15, 1994
- Pulse Electronics, Inc.
- David L. Roberson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Linear power amplifier utilizing current feedback
- Patent number 5,239,696
- Issue date Aug 24, 1993
- Sensormatic Electronics Corporation
- Brent F. Balch
- G08 - SIGNALLING
Information Patent Grant
Method and apparatus for determining the magnitude of a field in th...
- Patent number 5,189,397
- Issue date Feb 23, 1993
- Sensormatic Electronics Corporation
- Harry E. Watkins
- G08 - SIGNALLING