John E. Tumblin

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Decatur, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for improving video scrambling and employing s...
- Patent number 5,142,575
- Issue date Aug 25, 1992
- Scientific-Atlanta, Inc.
- James O. Farmer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for improving video scrambling and employing s...
- Patent number 4,924,498
- Issue date May 8, 1990
- Scientific-Atlanta, Inc.
- James O. Farmer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of selectively retrieving video images from a video reproduc...
- Patent number 4,873,585
- Issue date Oct 10, 1989
- Ivex Corporation
- Keith A. Blanton
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method and apparatus for sampling images to simulate movement withi...
- Patent number 4,807,158
- Issue date Feb 21, 1989
- Daleco/Ivex Partners, Ltd.
- Keith A. Blanton
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for reproducing video images to simulate movem...
- Patent number 4,752,836
- Issue date Jun 21, 1988
- Ivex Corporation
- Keith A. Blanton
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS