Elmer C. Simmons

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Whitman, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Auto-centered phase-locked loop
- Patent number 5,119,043
- Issue date Jun 2, 1992
- Digital Equipment Corporation
- Russell W. Borwn
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Data decoding circuit including phase-locked loop timing
- Patent number 4,908,841
- Issue date Mar 13, 1990
- Digital Equipment Corporation
- Michael Leis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Differential amplifier circuit
- Patent number 4,806,792
- Issue date Feb 21, 1989
- Digital Equipment Corporation
- Elmer Simmons
- G11 - INFORMATION STORAGE
Information Patent Grant
Digital filter
- Patent number 4,137,504
- Issue date Jan 30, 1979
- Digital Equipment Corporation
- Elmer C. Simmons
- G11 - INFORMATION STORAGE