CRYSTAL SEMICONDUCTOR CORPORATION

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AUSTIN, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Single-chip audio circuits, methods, and systems using the same
- Patent number 6,952,621
- Issue date Oct 4, 2005
- Crystal Semiconductor Corp.
- Ronald D. Malcolm, Jr.
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for storing digital audio and playback thereof
- Patent number 6,356,872
- Issue date Mar 12, 2002
- Crystal Semiconductor Corporation
- Ka Yin Leung
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Full-duplex speakerphone circuit including a control interface
- Patent number 6,212,273
- Issue date Apr 3, 2001
- Crystal Semiconductor Corporation
- Nariankadu D. Hemkumar
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Variable time delay circuit and method
- Patent number 6,121,811
- Issue date Sep 19, 2000
- Crystal Semiconductor Corporation
- Baker Scott
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Period forcing filter for preprocessing sound samples for usage in...
- Patent number 6,096,960
- Issue date Aug 1, 2000
- Crystal Semiconductor Corporation
- Jeffrey W. Scott
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Reduced-memory early reflection and reverberation simulator and method
- Patent number 6,091,824
- Issue date Jul 18, 2000
- Crystal Semiconductor Corporation
- Kun Lin
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Adaptive filter system having mixed fixed point or floating point a...
- Patent number 6,088,445
- Issue date Jul 11, 2000
- Crystal Semiconductor Corp.
- Mandeep Chadha
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dynamic volume control system
- Patent number 6,088,461
- Issue date Jul 11, 2000
- Crystal Semiconductor Corporation
- Kun Lin
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Zero detection circuitry and methods
- Patent number 5,978,825
- Issue date Nov 2, 1999
- Crystal Semiconductor Corp.
- James Divine
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for exponent processing in an audio decoding system
- Patent number 5,960,401
- Issue date Sep 28, 1999
- Crystal Semiconductor Corporation
- Raghunath Rao
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Reduced power FIR filter
- Patent number 5,923,273
- Issue date Jul 13, 1999
- Crystal Semiconductor Corporation
- Douglas F. Pastorello
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Reduced-memory reverberation simulator in a sound synthesizer
- Patent number 5,917,917
- Issue date Jun 29, 1999
- Crystal Semiconductor Corporation
- Michael V. Jenkins
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Serial port interface system and method for an analog-to-digital co...
- Patent number 5,886,658
- Issue date Mar 23, 1999
- Crystal Semiconductor Corporation
- Aryesh Amar
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Low power class AB integrated circuit amplifier having improved lin...
- Patent number 5,825,244
- Issue date Oct 20, 1998
- Crystal Semiconductor
- Shyam S. Somayajula
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Integrated CODEC with a self-calibrating ADC and DAC
- Patent number 5,818,370
- Issue date Oct 6, 1998
- Crystal Semiconductor Corporation
- Navdeep Singh Sooch
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ultra low power multiplier
- Patent number 5,787,029
- Issue date Jul 28, 1998
- Crystal Semiconductor Corp.
- Edwin de Angel
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
High pass filter with coefficient switching to improve settling time
- Patent number 5,777,909
- Issue date Jul 7, 1998
- Crystal Semiconductor Corporation
- Ka Leung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Linear phase finite impulse response filter with pre-addition
- Patent number 5,777,912
- Issue date Jul 7, 1998
- Crystal Semiconductor Corporation
- Ka Yin Leung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Delta sigma switch capacitor filter using curent feed forward
- Patent number 5,767,722
- Issue date Jun 16, 1998
- Crystal Semiconductor
- Dan B. Kasha
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Half-duplex controller
- Patent number 5,764,753
- Issue date Jun 9, 1998
- Crystal Semiconductor Corp.
- Shawn Robert McCaslin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Output driver for PCI bus
- Patent number 5,751,179
- Issue date May 12, 1998
- Crystal Semiconductor
- David Michael Pietruszynski
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Fully differential high gain cascode amplifier
- Patent number 5,748,040
- Issue date May 5, 1998
- Crystal Semiconductor Corporation
- Ka Yin Leung
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Resynchronization of a synchronous serial interface
- Patent number 5,748,684
- Issue date May 5, 1998
- Crystal Semiconductor, Inc.
- Clifton W. Sanchez
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Wavetable synthesizer and operating method using a variable samplin...
- Patent number 5,744,739
- Issue date Apr 28, 1998
- Crystal Semiconductor
- Michael V. Jenkins
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Signal driver circuit for liquid crystal displays
- Patent number 5,726,676
- Issue date Mar 10, 1998
- Crystal Semiconductor
- Michael J. Callahan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Signal driver circuit for liquid crystal displays
- Patent number 5,719,591
- Issue date Feb 17, 1998
- Crystal Semiconductor
- Michael J. Callahan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Signal driver circuit for liquid crystal displays
- Patent number 5,703,617
- Issue date Dec 30, 1997
- Crystal Semiconductor
- Michael J. Callahan
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Tone signal generator for producing multioperator tone signals
- Patent number 5,698,805
- Issue date Dec 16, 1997
- Crystal Semiconductor Corporation
- Charles D. Thompson
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Digital filter with decimated frequency response
- Patent number 5,696,708
- Issue date Dec 9, 1997
- Crystal Semiconductor
- Ka Yin Leung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Variable gain echo suppressor
- Patent number 5,668,794
- Issue date Sep 16, 1997
- Crystal Semiconductor
- Shawn Robert McCaslin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

Information Trademark
75209413 - CRYSTALCLEAR
- Serial number 75209413
- Registration number 2200323
- Filing date Dec 6, 1996
- CRYSTAL SEMICONDUCTOR CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
75207375 - CRYSTAL
- Serial number 75207375
- Registration number 2151990
- Filing date Dec 3, 1996
- CRYSTAL SEMICONDUCTOR CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73699028 - C
- Serial number 73699028
- Registration number 1500326
- Filing date Dec 4, 1987
- CRYSTAL SEMICONDUCTOR CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73619883 - SMART ANALOG
- Serial number 73619883
- Filing date Sep 15, 1986
- CRYSTAL SEMICONDUCTOR CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73555538 - SMART ANALOG
- Serial number 73555538
- Filing date Aug 27, 1985
- CRYSTAL SEMICONDUCTOR CORPORATION
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments

CRYSTAL SEMICONDUCTOR CORPORATION

Organization

Patents Grantslast 30 patents

Single-chip audio circuits, methods, and systems using the same

Method and apparatus for storing digital audio and playback thereof

Full-duplex speakerphone circuit including a control interface

Variable time delay circuit and method

Period forcing filter for preprocessing sound samples for usage in...

Reduced-memory early reflection and reverberation simulator and method

Adaptive filter system having mixed fixed point or floating point a...

Dynamic volume control system

Zero detection circuitry and methods

Method for exponent processing in an audio decoding system

Reduced power FIR filter

Reduced-memory reverberation simulator in a sound synthesizer

Serial port interface system and method for an analog-to-digital co...

Low power class AB integrated circuit amplifier having improved lin...

Integrated CODEC with a self-calibrating ADC and DAC

Ultra low power multiplier

High pass filter with coefficient switching to improve settling time

Linear phase finite impulse response filter with pre-addition

Delta sigma switch capacitor filter using curent feed forward

Half-duplex controller

Output driver for PCI bus

Fully differential high gain cascode amplifier

Resynchronization of a synchronous serial interface

Wavetable synthesizer and operating method using a variable samplin...

Signal driver circuit for liquid crystal displays

Signal driver circuit for liquid crystal displays

Signal driver circuit for liquid crystal displays

Tone signal generator for producing multioperator tone signals

Digital filter with decimated frequency response

Variable gain echo suppressor

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

75209413 - CRYSTALCLEAR

75207375 - CRYSTAL

73699028 - C

73619883 - SMART ANALOG

73555538 - SMART ANALOG