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Rudolf Hofmann
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Forchheim, DE
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Patents Grants
last 30 patents
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Patent Grant
Digital transmission system with improved decoder in the receiver
Patent number
5,854,814
Issue date
Dec 29, 1998
U.S. Philips Corporation
Rudolf Hofmann
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Adaptive prediction filter using block floating point format and mi...
Patent number
5,751,902
Issue date
May 12, 1998
U.S. Philips Corporation
Rudolf Hofmann
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Audio coder/decoder with recursive determination of prediction coef...
Patent number
5,657,350
Issue date
Aug 12, 1997
U.S. Philips Corporation
Rudolf Hofmann
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Switching system comprising a conference arrangement
Patent number
5,260,938
Issue date
Nov 9, 1993
U.S. Philips Corporation
Rudolf Hofmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Device for the digital recording and reproduction of speech signals
Patent number
5,251,261
Issue date
Oct 5, 1993
U.S. Philips Corporation
Peter Meyer
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Method of and circuit arrangement for establishing conference conne...
Patent number
4,607,362
Issue date
Aug 19, 1986
U.S. Philips Corporation
Peter Vary
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Transcoder-free operation in mobile communication system
Publication number
20050018769
Publication date
Jan 27, 2005
Karl Hellwig
H04 - ELECTRIC COMMUNICATION TECHNIQUE