Douglas R. Frey

Person

Austin, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Transport of an analog signal across an isolation barrier
- Patent number 9,143,373
- Issue date Sep 22, 2015
- Silicon Laboratories Inc.
- Jeffrey L. Sonntag
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase error cancellation
- Patent number 7,834,706
- Issue date Nov 16, 2010
- Silicon Laboratories Inc.
- Doug Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power supply with digital control loop
- Patent number 7,688,119
- Issue date Mar 30, 2010
- Silicon Laboratories, Inc.
- Geoffrey Thompson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dividerless PLL architecture
- Patent number 7,548,123
- Issue date Jun 16, 2009
- Silicon Laboratories Inc.
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Integrated driver circuitry
- Patent number 7,269,254
- Issue date Sep 11, 2007
- Silicon Laboratories, Inc.
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase error cancellation
- Patent number 7,068,110
- Issue date Jun 27, 2006
- Silicon Laboratories Inc.
- Doug Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital-to-analog converter switching circuitry
- Patent number 6,909,390
- Issue date Jun 21, 2005
- Silicon Laboratories, Inc.
- Ramin Khoini-Poorfard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digitally controlled crystal oscillator with integrated coarse and...
- Patent number 6,747,522
- Issue date Jun 8, 2004
- Silicon Laboratories, Inc.
- David M. Pietruszynski
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital-to-analog converter switching circuitry
- Patent number 6,639,534
- Issue date Oct 28, 2003
- Silicon Laboratories, Inc.
- Ramin Khoini-Poorfard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal conditioning circuit for compressing audio signals
- Patent number 5,631,968
- Issue date May 20, 1997
- Analog Devices, Inc.
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Explicit log domain root-mean-square detector
- Patent number 5,585,757
- Issue date Dec 17, 1996
- Analog Devices, Inc.
- Douglas R. Frey
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Voltage controlled amplifier
- Patent number 5,528,197
- Issue date Jun 18, 1996
- Analog Devices, Inc.
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Universal battery charger
- Patent number 5,270,635
- Issue date Dec 14, 1993
- Solid State Chargers, Inc.
- Philip K. Hoffman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Universal high current battery charger
- Patent number 5,266,881
- Issue date Nov 30, 1993
- Solid State Chargers Research and Development Limited
- Philip K. Hoffman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Input buffer with reduced offset for operational amplifiers or the...
- Patent number 5,212,457
- Issue date May 18, 1993
- AT&T Bell Laboratories
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Universal battery charger
- Patent number 5,113,127
- Issue date May 12, 1992
- Solid State Chargers, Inc.
- Philip K. Hoffman
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Dynamically biased voltage controlled element
- Patent number 4,823,093
- Issue date Apr 18, 1989
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Monolithic voltage controlled element
- Patent number 4,560,947
- Issue date Dec 24, 1985
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adjustable distortion guitar amplifier
- Patent number 4,495,640
- Issue date Jan 22, 1985
- Douglas R. Frey
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Voltage controlled element
- Patent number 4,471,320
- Issue date Sep 11, 1984
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
TRANSPORT OF AN ANALOG SIGNAL ACROSS AN ISOLATION BARRIER
- Publication number 20150063434
- Publication date Mar 5, 2015
- Silicon Laboratories Inc.
- Jeffrey L. Sonntag
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Subscriber Line Interface Circuitry Line Driver
- Publication number 20120002801
- Publication date Jan 5, 2012
- Douglas R. Frey
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Power Supply with Digital Control Loop
- Publication number 20090243701
- Publication date Oct 1, 2009
- Geoffrey Thompson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Power Supply with Digital Control Loop
- Publication number 20090243572
- Publication date Oct 1, 2009
- Michael J. Mills
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power Supply with Digital Control Loop
- Publication number 20090243578
- Publication date Oct 1, 2009
- Riad Wahby
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DIVIDERLESS PLL ARCHITECTURE
- Publication number 20090015338
- Publication date Jan 15, 2009
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Phase Error Cancellation
- Publication number 20080211588
- Publication date Sep 4, 2008
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Adaptive Power Offloading for a Subscriber Line Interface Circuit
- Publication number 20080080701
- Publication date Apr 3, 2008
- Marius Goldenberg
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Phase error cancellation
- Publication number 20050285685
- Publication date Dec 29, 2005
- Silicon Laboratories Inc.
- Doug Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Digital-to-analog converter switching circuitry
- Publication number 20040119621
- Publication date Jun 24, 2004
- Ramin Khoini-Poorfard
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Integrated driver circuitry
- Publication number 20030219111
- Publication date Nov 27, 2003
- Douglas R. Frey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Digitally controlled crystal oscillator with integrated coarse and...
- Publication number 20030206070
- Publication date Nov 6, 2003
- David M. Pietruszynski
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DIGITAL-TO-ANALOG CONVERTER SWITCHING CIRCUITRY
- Publication number 20030151533
- Publication date Aug 14, 2003
- Ramin Khoini-Poorfard
- H03 - BASIC ELECTRONIC CIRCUITRY

Douglas R. Frey

Person

Patents Grantslast 30 patents

Transport of an analog signal across an isolation barrier

Phase error cancellation

Power supply with digital control loop

Dividerless PLL architecture

Integrated driver circuitry

Phase error cancellation

Digital-to-analog converter switching circuitry

Digitally controlled crystal oscillator with integrated coarse and...

Digital-to-analog converter switching circuitry

Signal conditioning circuit for compressing audio signals

Explicit log domain root-mean-square detector

Voltage controlled amplifier

Universal battery charger

Universal high current battery charger

Input buffer with reduced offset for operational amplifiers or the...

Universal battery charger

Dynamically biased voltage controlled element

Monolithic voltage controlled element

Adjustable distortion guitar amplifier

Voltage controlled element

Patents Applicationslast 30 patents

TRANSPORT OF AN ANALOG SIGNAL ACROSS AN ISOLATION BARRIER

Subscriber Line Interface Circuitry Line Driver

Power Supply with Digital Control Loop

Power Supply with Digital Control Loop

Power Supply with Digital Control Loop

DIVIDERLESS PLL ARCHITECTURE

Phase Error Cancellation

Adaptive Power Offloading for a Subscriber Line Interface Circuit

Phase error cancellation

Digital-to-analog converter switching circuitry

Integrated driver circuitry

Digitally controlled crystal oscillator with integrated coarse and...

DIGITAL-TO-ANALOG CONVERTER SWITCHING CIRCUITRY