David M. Friend

Person

Rochester, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Using a burn-in operational amplifier for a phased locked loop regu...
- Patent number 10,804,905
- Issue date Oct 13, 2020
- International Business Machines Corporation
- James Strom
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Implementing cascade level shifter for analog voltage
- Patent number 10,326,450
- Issue date Jun 18, 2019
- International Business Machines Corporation
- Andrew D. Davies
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Differential phase-frequency detector
- Patent number 10,250,267
- Issue date Apr 2, 2019
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
VCO selection and amplitude management using center tap inductor
- Patent number 10,116,260
- Issue date Oct 30, 2018
- International Business Machines Corporation
- Andrew D. Davies
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electromigration monitor
- Patent number 10,088,519
- Issue date Oct 2, 2018
- International Business Machines Corporation
- David M. Friend
- G01 - MEASURING TESTING
Information Patent Grant
Wire capacitor for transmitting AC signals
- Patent number 9,929,722
- Issue date Mar 27, 2018
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Differential phase-frequency detector
- Patent number 9,923,565
- Issue date Mar 20, 2018
- International Business Machines Incorporated
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Low power amplifier
- Patent number 9,882,552
- Issue date Jan 30, 2018
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase locked loop with sense amplifier circuitry
- Patent number 9,871,527
- Issue date Jan 16, 2018
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage controlled oscillator runaway prevention
- Patent number 9,571,109
- Issue date Feb 14, 2017
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phased locked loop with multiple voltage controlled oscillators
- Patent number 9,467,092
- Issue date Oct 11, 2016
- International Business Machines Corporation
- Daniel M. Dreps
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage controlled oscillator runaway prevention
- Patent number 9,455,730
- Issue date Sep 27, 2016
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage controlled oscillator runaway prevention
- Patent number 9,391,623
- Issue date Jul 12, 2016
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control voltage mirror circuit
- Patent number 9,197,225
- Issue date Nov 24, 2015
- International Business Machines Corporation
- Kennedy K. Cheruiyot
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Variable frequency oscillator with specialized inverter stages
- Patent number 9,059,660
- Issue date Jun 16, 2015
- International Business Machines Corporation
- Andrew D. Davies
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Moat construction to reduce noise coupling to a quiet supply
- Patent number 8,994,117
- Issue date Mar 31, 2015
- International Business Machines Corporation
- Joel T. Ficke
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Charge pump operating voltage range control using dynamic biasing
- Patent number 8,917,126
- Issue date Dec 23, 2014
- International Business Machines Corporation
- Joel T. Ficke
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Implementing dual speed level shifter with automatic mode control
- Patent number 8,751,982
- Issue date Jun 10, 2014
- International Business Machines Corporation
- Joel T. Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Structure for a frequency adaptive level shifter circuit
- Patent number 8,686,782
- Issue date Apr 1, 2014
- International Business Machines Corporation
- Joel Thomas Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Implementing integral dynamic voltage sensing and trigger
- Patent number 8,513,957
- Issue date Aug 20, 2013
- International Business Machines Corporation
- Kennedy K. Cheruiyot
- G01 - MEASURING TESTING
Information Patent Grant
Structure for a frequency adaptive level shifter circuit
- Patent number 8,373,486
- Issue date Feb 12, 2013
- International Business Machines Corporation
- Joel Thomas Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Implementing dual speed level shifter with automatic mode control
- Patent number 8,324,933
- Issue date Dec 4, 2012
- International Business Machines Corporation
- Joel T. Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Wide adder with critical path of three gates
- Patent number 6,990,510
- Issue date Jan 24, 2006
- International Business Machines Corporation
- David Michael Friend
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus to make a semiconductor chip susceptible to ra...
- Patent number 6,909,159
- Issue date Jun 21, 2005
- International Business Machines Corporation
- David Michael Friend
- G11 - INFORMATION STORAGE
Information Patent Grant
Dual threshold gate array or standard cell power saving library cir...
- Patent number 6,668,358
- Issue date Dec 23, 2003
- International Business Machines Corporation
- David Michael Friend
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and ring oscillator for evaluating dynamic circuits
- Patent number 6,538,522
- Issue date Mar 25, 2003
- International Business Machines Corporation
- Anthony Gus Aipperspach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Fully dynamic logic network circuits
- Patent number 6,437,602
- Issue date Aug 20, 2002
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
USING A BURN-IN OPERATIONAL AMPLIFIER FOR A PHASED LOCKED LOOP REGU...
- Publication number 20190379383
- Publication date Dec 12, 2019
- International Business Machines Corporation
- JAMES STROM
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
IMPLEMENTING CASCADE LEVEL SHIFTER FOR ANALOG VOLTAGE
- Publication number 20180358969
- Publication date Dec 13, 2018
- International Business Machines Corporation
- Andrew D. Davies
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ELECTROMIGRATION MONITOR
- Publication number 20180299503
- Publication date Oct 18, 2018
- International Business Machines Corporation
- David M. FRIEND
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Differential Phase-Frequency Detector
- Publication number 20180109265
- Publication date Apr 19, 2018
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VCO SELECTION AND AMPLITUDE MANAGEMENT USING CENTER TAP INDUCTOR
- Publication number 20170179884
- Publication date Jun 22, 2017
- International Business Machines Corporation
- Andrew D. Davies
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
LOW POWER AMPLIFIER
- Publication number 20170141781
- Publication date May 18, 2017
- International Business Machines Corporation
- David M. FRIEND
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
LOW POWER AMPLIFIER
- Publication number 20170093383
- Publication date Mar 30, 2017
- International Business Machines Corporation
- David M. FRIEND
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VOLTAGE CONTROLLED OSCILLATOR RUNAWAY PREVENTION
- Publication number 20160285468
- Publication date Sep 29, 2016
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VOLTAGE CONTROLLED OSCILLATOR RUNAWAY PREVENTION
- Publication number 20160285466
- Publication date Sep 29, 2016
- International Business Machines Corporation
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DIFFERENTIAL PHASE-FREQUENCY DETECTOR
- Publication number 20160142062
- Publication date May 19, 2016
- International Business Machines Corporation
- David M. Friend
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
VARIABLE FREQUENCY OSCILLATOR WITH SPECIALIZED INVERTER STAGES
- Publication number 20150171790
- Publication date Jun 18, 2015
- International Business Machines Corporation
- Andrew D. Davies
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Moat Construction to Reduce Noise Coupling to a Quiet Supply
- Publication number 20140167213
- Publication date Jun 19, 2014
- International Business Machines Corporation
- Joel T. Ficke
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
IMPLEMENTING CONTROL VOLTAGE MIRROR
- Publication number 20130088269
- Publication date Apr 11, 2013
- International Business Machines Corporation
- Kennedy K. Cheruiyot
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMPLEMENTING DUAL SPEED LEVEL SHIFTER WITH AUTOMATIC MODE CONTROL
- Publication number 20120331432
- Publication date Dec 27, 2012
- International Business Machines Corporation
- Joel T. Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
IMPLEMENTING DUAL SPEED LEVEL SHIFTER WITH AUTOMATIC MODE CONTROL
- Publication number 20120212280
- Publication date Aug 23, 2012
- International Business Machines Corporation
- Joel T. Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
STRUCTURE FOR A FREQUENCY ADAPTIVE LEVEL SHIFTER CIRCUIT
- Publication number 20120187987
- Publication date Jul 26, 2012
- International Business Machines Corporation
- Joel Thomas Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DESIGN STRUCTURE FOR A FREQUENCY ADAPTIVE LEVEL SHIFTER CIRCUIT
- Publication number 20120133413
- Publication date May 31, 2012
- International Business Machines Corporation
- Joel Thomas Ficke
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
IMPLEMENTING INTEGRAL DYNAMIC VOLTAGE SENSING AND TRIGGER
- Publication number 20110298474
- Publication date Dec 8, 2011
- International Business Machines Corporation
- Kennedy K. Cheruiyot
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM TO IMPROVE A VOLTAGE-CONTROLLED OSCILLATOR AND ASSOCIATED ME...
- Publication number 20100001804
- Publication date Jan 7, 2010
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Phase Lock Loop Clock Distribution Method and System
- Publication number 20090189653
- Publication date Jul 30, 2009
- David M. Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method and apparatus to make a semiconductor chip susceptible to ra...
- Publication number 20030234430
- Publication date Dec 25, 2003
- International Business Machines Corporation
- David Michael Friend
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Reduction of parasitic bipolar leakage current in silicon on insula...
- Publication number 20030205759
- Publication date Nov 6, 2003
- International Business Machines Corporation
- Todd Alan Christensen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wide adder with critical path of three gates
- Publication number 20030140080
- Publication date Jul 24, 2003
- International Business Machines Corporation
- David Michael Friend
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD AND RING OSCILLATOR FOR EVALUATING DYNAMIC CIRCUITS
- Publication number 20030071692
- Publication date Apr 17, 2003
- International Business Machines Corporation
- Anthony Gus Aipperspach
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Dual threshold gate array or standard cell power saving library cir...
- Publication number 20030070147
- Publication date Apr 10, 2003
- International Business Machines Corporation
- David Michael Friend
- G06 - COMPUTING CALCULATING COUNTING

David M. Friend

Person

Patents Grantslast 30 patents

Using a burn-in operational amplifier for a phased locked loop regu...

Implementing cascade level shifter for analog voltage

Differential phase-frequency detector

VCO selection and amplitude management using center tap inductor

Electromigration monitor

Wire capacitor for transmitting AC signals

Differential phase-frequency detector

Low power amplifier

Phase locked loop with sense amplifier circuitry

Voltage controlled oscillator runaway prevention

Phased locked loop with multiple voltage controlled oscillators

Voltage controlled oscillator runaway prevention

Voltage controlled oscillator runaway prevention

Control voltage mirror circuit

Variable frequency oscillator with specialized inverter stages

Moat construction to reduce noise coupling to a quiet supply

Charge pump operating voltage range control using dynamic biasing

Implementing dual speed level shifter with automatic mode control

Structure for a frequency adaptive level shifter circuit

Implementing integral dynamic voltage sensing and trigger

Structure for a frequency adaptive level shifter circuit

Implementing dual speed level shifter with automatic mode control

Wide adder with critical path of three gates

Method and apparatus to make a semiconductor chip susceptible to ra...

Dual threshold gate array or standard cell power saving library cir...

Method and ring oscillator for evaluating dynamic circuits

Fully dynamic logic network circuits

Patents Applicationslast 30 patents

USING A BURN-IN OPERATIONAL AMPLIFIER FOR A PHASED LOCKED LOOP REGU...

IMPLEMENTING CASCADE LEVEL SHIFTER FOR ANALOG VOLTAGE

ELECTROMIGRATION MONITOR

Differential Phase-Frequency Detector

VCO SELECTION AND AMPLITUDE MANAGEMENT USING CENTER TAP INDUCTOR

LOW POWER AMPLIFIER

LOW POWER AMPLIFIER

VOLTAGE CONTROLLED OSCILLATOR RUNAWAY PREVENTION

VOLTAGE CONTROLLED OSCILLATOR RUNAWAY PREVENTION

DIFFERENTIAL PHASE-FREQUENCY DETECTOR

VARIABLE FREQUENCY OSCILLATOR WITH SPECIALIZED INVERTER STAGES

Moat Construction to Reduce Noise Coupling to a Quiet Supply

IMPLEMENTING CONTROL VOLTAGE MIRROR

IMPLEMENTING DUAL SPEED LEVEL SHIFTER WITH AUTOMATIC MODE CONTROL

IMPLEMENTING DUAL SPEED LEVEL SHIFTER WITH AUTOMATIC MODE CONTROL

STRUCTURE FOR A FREQUENCY ADAPTIVE LEVEL SHIFTER CIRCUIT

DESIGN STRUCTURE FOR A FREQUENCY ADAPTIVE LEVEL SHIFTER CIRCUIT

IMPLEMENTING INTEGRAL DYNAMIC VOLTAGE SENSING AND TRIGGER

SYSTEM TO IMPROVE A VOLTAGE-CONTROLLED OSCILLATOR AND ASSOCIATED ME...

Phase Lock Loop Clock Distribution Method and System

Method and apparatus to make a semiconductor chip susceptible to ra...

Reduction of parasitic bipolar leakage current in silicon on insula...

Wide adder with critical path of three gates

METHOD AND RING OSCILLATOR FOR EVALUATING DYNAMIC CIRCUITS

Dual threshold gate array or standard cell power saving library cir...