Trifield Productions Limited

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London, GB

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Patents Grantslast 30 patents

Information Patent Grant
Surround sound apparatus
- Patent number 5,757,927
- Issue date May 26, 1998
- Trifield Productions Ltd.
- Michael Anthony Gerzon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Stereophonic signal processor
- Patent number 5,671,287
- Issue date Sep 23, 1997
- Trifield Productions Limited
- Michael Anthony Gerzon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sound reproduction system having a matrix converter
- Patent number 5,594,800
- Issue date Jan 14, 1997
- Trifield Productions Limited
- Michael A. Gerzon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio signal processor providing simulated source distance control
- Patent number 5,555,306
- Issue date Sep 10, 1996
- Trifield Productions Limited
- Michael A. Gerzon
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

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