James S. Ketcham

Follow

Person

Woodland Hills, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for multiplexed encoding of digital audio info...
- Patent number 5,451,942
- Issue date Sep 19, 1995
- Digital Theater Systems, L.P.
- Terry D. Beard
- G11 - INFORMATION STORAGE
Information Patent Grant
Motion picture digital sound system and method with primary sound s...
- Patent number 5,386,255
- Issue date Jan 31, 1995
- Digital Theater Systems, L.P.
- Terry D. Beard
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY