Townsend Henry Porter Jr.

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Rochester, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Clocking method and apparatus for use with partial response coded b...
- Patent number 4,970,609
- Issue date Nov 13, 1990
- International Business Machines Corporation
- Earl A. Cunningham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital frequency shift key modulator
- Patent number 3,991,389
- Issue date Nov 9, 1976
- International Business Machines Corporation
- Jerold Dennis Dwire
- H04 - ELECTRIC COMMUNICATION TECHNIQUE