Derald O. Cummings

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State College, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Echo cancellation in a bidirectional communication system for out o...
- Patent number 11,102,529
- Issue date Aug 24, 2021
- ARRIS Enterprises LLC
- Marcel F. Schemmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Echo cancellation in a bidirectional communication system for out o...
- Patent number 10,382,802
- Issue date Aug 13, 2019
- ARRIS Enterprises LLC
- Marcel F. Schemmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for reducing frequency spectrum losses in a bid...
- Patent number 9,209,898
- Issue date Dec 8, 2015
- ARRIS Enterprises, Inc.
- Marcel F. Schemmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplitude and phase transfer linearization method and apparatus for...
- Patent number 6,580,319
- Issue date Jun 17, 2003
- C-COR.net Corp.
- Derald O. Cummings
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
ECHO CANCELLATION IN A BIDIRECTIONAL COMMUNICATION SYSTEM FOR OUT O...
- Publication number 20190313132
- Publication date Oct 10, 2019
- ARRIS Enterprises LLC
- Marcel F. Schemmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE