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Roubik Gregorian
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Sunnyvale, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Analog echo canceller with interpolating output
Patent number
8,917,582
Issue date
Dec 23, 2014
NetLogic Microsystems, Inc.
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Analog echo canceller with filter banks
Patent number
7,843,859
Issue date
Nov 30, 2010
Netlogic Microsystems, Inc.
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Analog echo canceller with interpolating output
Patent number
7,839,758
Issue date
Nov 23, 2010
Net Logic Microsystems, Inc.
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Interleaved pulse-extended phase detector
Patent number
7,127,021
Issue date
Oct 24, 2006
Exar Corporation
Shin Chung Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Frequency compensation of wide-band resistive gain amplifier
Patent number
6,906,593
Issue date
Jun 14, 2005
Exar Corporation
Bahram Fotouhi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Clock recovery circuit
Patent number
6,798,857
Issue date
Sep 28, 2004
Exar Corporation
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic frequency rate switch
Patent number
6,452,425
Issue date
Sep 17, 2002
Exar Corporation
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital jitter attenuator using an accumulated count of phase diffe...
Patent number
6,351,165
Issue date
Feb 26, 2002
Exar Corporation
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Second order digital jitter attenuator
Patent number
6,333,651
Issue date
Dec 25, 2001
Exar Corporation
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage regulated charge pump
Patent number
6,300,820
Issue date
Oct 9, 2001
Exar Corporation
Bahram Fotouhi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Constant gain amplifier
Patent number
6,121,837
Issue date
Sep 19, 2000
Exar Corporation
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Slew rate limited output driver
Patent number
6,031,389
Issue date
Feb 29, 2000
Exar Corporation
Bahram Fotouhi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Negative charge pump circuit
Patent number
5,914,632
Issue date
Jun 22, 1999
Exar Corporation
Bahram Fotouhi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Dynamic power saving video DAC
Patent number
5,489,902
Issue date
Feb 6, 1996
Sierra Semiconductor Corporation
Jyn-Bang Shyu
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High resolution charge-redistribution A/D converter
Patent number
5,258,761
Issue date
Nov 2, 1993
Bahram Fotouhi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Reference generator
Patent number
5,221,890
Issue date
Jun 22, 1993
Sierra Semiconductor Corporation
Jyn-Bang Shyu
G05 - CONTROLLING REGULATING
Information
Patent Grant
Adaptive hybrid
Patent number
5,204,854
Issue date
Apr 20, 1993
Sierra Semiconductor Corporation
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Exponential gain control for nonlinear analog-to-digital converter
Patent number
4,975,701
Issue date
Dec 4, 1990
Sierra Semiconductor
Joseph N. Babanezhad
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit and method for measuring battery voltage by time of dischar...
Patent number
4,866,389
Issue date
Sep 12, 1989
Ventritex
John G. Ryan
G01 - MEASURING TESTING
Information
Patent Grant
Gain amplifier
Patent number
4,555,668
Issue date
Nov 26, 1985
American Microsystems, Inc.
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Digitally controlled syllabic filter for a delta modulator
Patent number
4,541,103
Issue date
Sep 10, 1985
American Microsystems, Inc.
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multiplier/adder circuit
Patent number
4,521,907
Issue date
Jun 4, 1985
American Microsystems, Incorporated
Gideon Amir
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Multiplier/adder circuit
Patent number
4,422,155
Issue date
Dec 20, 1983
American Microsystems, Inc.
Gideon Amir
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Switched capacitor gain stage with offset and switch feedthrough ca...
Patent number
4,404,525
Issue date
Sep 13, 1983
American Microsystems, Inc.
Gideon Amir
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Offset compensation for switched capacitor integrators
Patent number
4,393,351
Issue date
Jul 12, 1983
American Microsystems, Inc.
Roubik Gregorian
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Switched-capacitor interolation filter
Patent number
4,331,894
Issue date
May 25, 1982
American Microsystems, Inc.
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switched-capacitor elliptic filter
Patent number
4,306,197
Issue date
Dec 15, 1981
American Microsystems, Inc.
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Round off correction logic for modified Booth's algorithm
Patent number
4,229,800
Issue date
Oct 21, 1980
American Microsystems, Inc.
Roubik Gregorian
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
High pass switched capacitor filter section
Patent number
4,210,872
Issue date
Jul 1, 1980
American Microsystems, Inc.
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switched capacitor elliptic filter
Patent number
4,179,665
Issue date
Dec 18, 1979
American Microsystems, Inc.
Roubik Gregorian
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
Analog Echo Canceller with Interpolating Output
Publication number
20110044397
Publication date
Feb 24, 2011
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Systems, circuits and methods for an analog echo canceller with int...
Publication number
20110044216
Publication date
Feb 24, 2011
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FREQUENCY COMPENSATION OF WIDE-BAND RESISTIVE GAIN AMPLIFIER
Publication number
20050073364
Publication date
Apr 7, 2005
Exar Corporation
Bahram Fotouhi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Interleaved pulse-extended phase detector
Publication number
20040012414
Publication date
Jan 22, 2004
Exar Corporation
Shin Chung Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Clock and data recovery circuit for return-to-zero data
Publication number
20030190001
Publication date
Oct 9, 2003
Exar Corporation
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUTOMATIC FREQUENCY RATE SWITCH
Publication number
20020109533
Publication date
Aug 15, 2002
Exar Corporation
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Digitally-controlled line build-out circuit
Publication number
20020097808
Publication date
Jul 25, 2002
Exar Corporation
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Clock recovery circuit
Publication number
20020067788
Publication date
Jun 6, 2002
Exar Corporation, including cover sheet
Roubik Gregorian
H04 - ELECTRIC COMMUNICATION TECHNIQUE