Ivan Boyd

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Ipswich, GB

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Patents Grantslast 30 patents

Information Patent Grant
Speech coding using sparse vector codebook and cyclic shift techniques
- Patent number RE35057
- Issue date Oct 10, 1995
- British Telecommunications public limited company
- Daniel K. Freeman
- 395 -
Information Patent Grant
Voice activity detection
- Patent number 5,276,765
- Issue date Jan 4, 1994
- British Telecommunications public limited company
- Daniel K. Freeman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Speech coding using sparse vector codebook and cyclic shift techniques
- Patent number 4,991,214
- Issue date Feb 5, 1991
- British Telecommunications Public Limited Company
- Daniel K. Freeman
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method of speech coding
- Patent number 4,864,621
- Issue date Sep 5, 1989
- British Telecommunications Public Limited Company
- Ivan Boyd
- G10 - MUSICAL INSTRUMENTS ACOUSTICS