APHEX SYSTEMS, LTD.

Organization

Sun Valley, CA, US

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Microphone output limiter
- Patent number 6,266,423
- Issue date Jul 24, 2001
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digitally-controlled low noise variable-gain amplifier
- Patent number 6,160,448
- Issue date Dec 12, 2000
- Aphex Systems
- Donn Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase coherent crossover
- Patent number 5,930,374
- Issue date Jul 27, 1999
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drift canceling method and apparatus for analog to digital converters
- Patent number 5,898,395
- Issue date Apr 27, 1999
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Sticky leveler
- Patent number 5,896,458
- Issue date Apr 20, 1999
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Distributed pre-emphasis equalizer
- Patent number 5,848,167
- Issue date Dec 8, 1998
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Split-band clipper
- Patent number 5,737,432
- Issue date Apr 7, 1998
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Functional control block for voltage regulator with dual servo loops
- Patent number 5,612,612
- Issue date Mar 18, 1997
- Aphex Systems, Ltd.
- Donn Werrbach
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Concentric servo voltage regulator utilizing an inner servo loop an...
- Patent number 5,485,077
- Issue date Jan 16, 1996
- Aphex Systems, Ltd.
- Donn Werrbach
- G05 - CONTROLLING REGULATING
Information Patent Grant
Wave dependent compressor
- Patent number 5,483,600
- Issue date Jan 9, 1996
- Aphex Systems, Ltd.
- Donn Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Peak accelerated compressor
- Patent number 5,463,695
- Issue date Oct 31, 1995
- Aphex Systems, Ltd.
- Donn Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Reflected plate amplifier
- Patent number 5,450,034
- Issue date Sep 12, 1995
- Aphex Systems, Ltd.
- Donn Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transient discriminate harmonics generator
- Patent number 5,424,488
- Issue date Jun 13, 1995
- Aphex Systems, Ltd.
- Donn Werrbach
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Frequency discriminate leveler
- Patent number 5,422,602
- Issue date Jun 6, 1995
- Aphex Systems, Ltd.
- Donn Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Audio bass frequency enhancement
- Patent number 5,359,665
- Issue date Oct 25, 1994
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Logic enhanced noise gate
- Patent number 5,334,947
- Issue date Aug 2, 1994
- Aphex Systems, Ltd.
- Donn Werrbach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Discrete parallel path modulation multiplexer
- Patent number 5,155,769
- Issue date Oct 13, 1992
- Aphex Systems, Ltd.
- Donn R. Werrbach
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High frequency expander device
- Patent number 5,115,471
- Issue date May 19, 1992
- Aphex Systems, Ltd.
- Gary Liden
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Impulse detection circuit
- Patent number 4,939,471
- Issue date Jul 3, 1990
- Aphex Systems Ltd.
- Donn R. Werrbach
- G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
76685048 - AURAL EXCITER
- Serial number 76685048
- Registration number 3535791
- Filing date Dec 18, 2007
- APHEX SYSTEMS, LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
76685052 - COMPELLOR
- Serial number 76685052
- Registration number 3600723
- Filing date Dec 18, 2007
- APHEX SYSTEMS, LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74489802 - TUBESSENCE
- Serial number 74489802
- Registration number 1964525
- Filing date Feb 14, 1994
- APHEX SYSTEMS, LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74445448 - EASYRIDER
- Serial number 74445448
- Registration number 1928583
- Filing date Oct 12, 1993
- APHEX SYSTEMS, LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
74339836 - BIG BOTTOM
- Serial number 74339836
- Registration number 1786623
- Filing date Dec 14, 1992
- APHEX SYSTEMS, LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73737898 - APHEX
- Serial number 73737898
- Registration number 1671597
- Filing date Jul 5, 1988
- APHEX SYSTEMS LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73737959 - COMPELLOR
- Serial number 73737959
- Registration number 1525415
- Filing date Jul 5, 1988
- APHEX SYSTEMS LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73737315 - AURAL EXCITER
- Serial number 73737315
- Registration number 1539062
- Filing date Jun 30, 1988
- APHEX SYSTEMS LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73737063 - AX
- Serial number 73737063
- Filing date Jun 28, 1988
- APHEX SYSTEMS LTD.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73180517 - AURAL EXCITER
- Serial number 73180517
- Registration number 1148211
- Filing date Jul 31, 1978
- Aphex Systems Ltd.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments

APHEX SYSTEMS, LTD.

Organization

Patents Grantslast 30 patents

Microphone output limiter

Digitally-controlled low noise variable-gain amplifier

Phase coherent crossover

Drift canceling method and apparatus for analog to digital converters

Sticky leveler

Distributed pre-emphasis equalizer

Split-band clipper

Functional control block for voltage regulator with dual servo loops

Concentric servo voltage regulator utilizing an inner servo loop an...

Wave dependent compressor

Peak accelerated compressor

Reflected plate amplifier

Transient discriminate harmonics generator

Frequency discriminate leveler

Audio bass frequency enhancement

Logic enhanced noise gate

Discrete parallel path modulation multiplexer

High frequency expander device

Impulse detection circuit

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

76685048 - AURAL EXCITER

76685052 - COMPELLOR

74489802 - TUBESSENCE

74445448 - EASYRIDER

74339836 - BIG BOTTOM

73737898 - APHEX

73737959 - COMPELLOR

73737315 - AURAL EXCITER

73737063 - AX

73180517 - AURAL EXCITER