David G. Cornwell

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Distortion reduction in signal processors
- Patent number 5,982,905
- Issue date Nov 9, 1999
- Robert M. Grodinsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifier-speaker interface correction circuit
- Patent number 5,386,474
- Issue date Jan 31, 1995
- Robert M. Grodinsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distortion reduction in loudspeakers
- Patent number 5,357,587
- Issue date Oct 18, 1994
- Robert M. Grodinsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electroacoustic transducers with increased magnetic stability for d...
- Patent number 5,070,530
- Issue date Dec 3, 1991
- Robert M. Grodinsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ultra high resolution loudspeaker system
- Patent number 4,597,100
- Issue date Jun 24, 1986
- RG Dynamics, Inc.
- Robert M. Grodinsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio amplifier with resistive damping for minimizing time displace...
- Patent number 4,594,561
- Issue date Jun 10, 1986
- RG Dynamics, Inc.
- Robert M. Grodinsky
- H03 - BASIC ELECTRONIC CIRCUITRY