Donn R. Werrbach — 21 Patents at Aphex Systems

Donn R. Werrbach has been granted 21 US patents while listed as an inventor at Aphex Systems. The first was granted in 1986 and the most recent in July 2001. Donn R. Werrbach ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Donn R. Werrbach in Honolulu, HI, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #	Title	Co-Inventors	Date
6266423	Microphone output limiter	—	2001-07-24
6160448	Digitally-controlled low noise variable-gain amplifier	—	2000-12-12
5930374	Phase coherent crossover	Richard W. Faith	1999-07-27
5898395	Drift canceling method and apparatus for analog to digital converters	Gary Ross Liden	1999-04-27
5896458	Sticky leveler	—	1999-04-20
5848167	Distributed pre-emphasis equalizer	—	1998-12-08
5737432	Split-band clipper	—	1998-04-07
5612612	Functional control block for voltage regulator with dual servo loops	—	1997-03-18
5485077	Concentric servo voltage regulator utilizing an inner servo loop and an outer servo loop	—	1996-01-16
5483600	Wave dependent compressor	—	1996-01-09
5463695	Peak accelerated compressor	—	1995-10-31
5450034	Reflected plate amplifier	—	1995-09-12
5424488	Transient discriminate harmonics generator	—	1995-06-13
5422602	Frequency discriminate leveler	—	1995-06-06
5359665	Audio bass frequency enhancement	—	1994-10-25
5334947	Logic enhanced noise gate	—	1994-08-02
5155769	Discrete parallel path modulation multiplexer	—	1992-10-13
4939471	Impulse detection circuit	—	1990-07-03
4843626	Multiband limiter with automatic limiting threshold (ALT) compensation	—	1989-06-27
4633501	Program dependent crossover filter (PDC)	—	1986-12-30
4578648	Dynamic verification gate circuit	—	1986-03-25

Donn R. Werrbach — 21 Patents

Issued Patents All Time

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