Sanjay Gupta

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Phoenix, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Low frequency sinewave generator
- Patent number 5,121,069
- Issue date Jun 9, 1992
- Siemens Transmission Systems, Inc.
- Robert V. Burns
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ringing signal generator
- Patent number 5,001,748
- Issue date Mar 19, 1991
- Siemens Transmission Systems, Inc.
- Robert V. Burns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Overload detector and protection circuit
- Patent number 4,965,692
- Issue date Oct 23, 1990
- Siemens Transmission Systems, Inc.
- Robert V. Burns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Series ringing signal generator
- Patent number 4,962,527
- Issue date Oct 9, 1990
- Siemens Transmission Systems, Inc.
- Robert V. Burns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring signal generator for generating ring signals of different freq...
- Patent number 4,924,511
- Issue date May 8, 1990
- Siemens Transmission Systems, Inc.
- Robert V. Burns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Isolated drive circuit
- Patent number 4,908,857
- Issue date Mar 13, 1990
- Siemens Transmission Systems, Inc.
- Robert V. Burns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE