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Eskinder Hailu
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Austin, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Self-biased high speed level shifter circuit
Patent number
8,736,304
Issue date
May 27, 2014
International Business Machines Corporation
David William Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for a duty cycle correction circuit
Patent number
8,381,143
Issue date
Feb 19, 2013
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for a circuit obtaining desired phase locked loop duty cy...
Patent number
8,108,813
Issue date
Jan 31, 2012
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for glitchless clock multiplexer optimized for synchronou...
Patent number
8,086,989
Issue date
Dec 27, 2011
International Business Machines Corporation
Eskinder Hailu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for on/off-chip characterization of pulse-width l...
Patent number
8,054,119
Issue date
Nov 8, 2011
International Business Machines Corporation
David William Boerstler
G01 - MEASURING TESTING
Information
Patent Grant
Clock duty cycle measurement with charge pump without using referen...
Patent number
8,041,537
Issue date
Oct 18, 2011
International Business Machines Corporation
Jieming Qi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for interleaved voltage controlled oscillator
Patent number
8,037,431
Issue date
Oct 11, 2011
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for an absolute duty cycle measurement circuit
Patent number
8,032,850
Issue date
Oct 4, 2011
International Business Machines Corporation
David W. Boerstler
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Systems and methods for PLL linearity measurement, PLL output duty...
Patent number
7,994,830
Issue date
Aug 9, 2011
Kabushiki Kaisha Toshiba
Masaaki Kaneko
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for a programmable interpolative voltage controlled oscil...
Patent number
7,969,250
Issue date
Jun 28, 2011
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Design structure for a phase locked loop with stabilized dynamic re...
Patent number
7,958,469
Issue date
Jun 7, 2011
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for a duty cycle measurement circuit
Patent number
7,917,318
Issue date
Mar 29, 2011
International Business Machines Corporation
David W. Boerstler
G01 - MEASURING TESTING
Information
Patent Grant
Digital circuit to measure and/or correct duty cycles
Patent number
7,917,795
Issue date
Mar 29, 2011
International Business Machines Corporation
David William Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Structure for a duty cycle correction circuit
Patent number
7,913,199
Issue date
Mar 22, 2011
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Absolute duty cycle measurement
Patent number
7,904,264
Issue date
Mar 8, 2011
International Business Machines Corporation
David W. Boerstler
G01 - MEASURING TESTING
Information
Patent Grant
Duty cycle measurement for various signals throughout an integrated...
Patent number
7,895,005
Issue date
Feb 22, 2011
International Business Machines Corporation
David W. Boerstler
G01 - MEASURING TESTING
Information
Patent Grant
Random number generator
Patent number
7,890,561
Issue date
Feb 15, 2011
International Business Machines Corporation
David William Boerstler
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Structure for a phase locked loop with adjustable voltage based on...
Patent number
7,877,222
Issue date
Jan 25, 2011
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit to reduce transient current swings during mode transitions...
Patent number
7,831,006
Issue date
Nov 9, 2010
International Business Machines Corporation
David William Boerstler
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Circuit to reduce power supply fluctuations in high frequency/high...
Patent number
7,809,974
Issue date
Oct 5, 2010
International Business Machines Corporation
David William Boerstler
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Interleaved voltage controlled oscillator
Patent number
7,786,813
Issue date
Aug 31, 2010
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Interleaved voltage controlled oscillator
Patent number
7,782,146
Issue date
Aug 24, 2010
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
System for automatically selecting intermediate power supply voltag...
Patent number
7,747,892
Issue date
Jun 29, 2010
International Business Machines Corporation
David William Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method for controlling operation of microprocessor which performs d...
Patent number
7,716,516
Issue date
May 11, 2010
Sony Computer Entertainment Inc.
Yosuke Muraki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Glitchless clock multiplexer optimized for synchronous and asynchro...
Patent number
7,679,408
Issue date
Mar 16, 2010
International Business Machines Corporation
Eskinder Hailu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Duty cycle correction circuit whose operation is largely independen...
Patent number
7,675,338
Issue date
Mar 9, 2010
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Design structure for a duty cycle measurement apparatus that operat...
Patent number
7,646,177
Issue date
Jan 12, 2010
International Business Machines Corporation
David William Boerstler
G01 - MEASURING TESTING
Information
Patent Grant
Systems and methods for PLL linearity measurement, PLL output duty...
Patent number
7,642,863
Issue date
Jan 5, 2010
Kabushiki Kaisha Toshiba
Masaaki Kaneko
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for detecting frequency lock in a system inclu...
Patent number
7,620,126
Issue date
Nov 17, 2009
International Business Machines Corporation
David William Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for measuring the duty cycle of a digital signal
Patent number
7,617,059
Issue date
Nov 10, 2009
International Business Machines Corporation
David William Boerstler
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Systems and Methods for PLL Linearity Measurement, PLL Output Duty...
Publication number
20110121874
Publication date
May 26, 2011
Masaaki Kaneko
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Design Structure for a Duty Cycle Correction Circuit
Publication number
20110126162
Publication date
May 26, 2011
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Method and Apparatus for On-Chip Testing of High Speed Frequency Di...
Publication number
20090322311
Publication date
Dec 31, 2009
International Business Machines Corporation
Jieming Qi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Clock Duty Cycle Measurement with Charge Pump Without Using Referen...
Publication number
20090326862
Publication date
Dec 31, 2009
International Business Machines Corporation
Jieming Qi
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Structure for a Programmable Interpolative Voltage Controlled Oscil...
Publication number
20090183136
Publication date
Jul 16, 2009
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Design Structure for Glitchless Clock Multiplexer Optimized for Syn...
Publication number
20090164957
Publication date
Jun 25, 2009
International Business Machines Corporation
Eskinder Hailu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Glitchless Clock Multiplexer Optimized for Synchronous and ASynchro...
Publication number
20090160492
Publication date
Jun 25, 2009
Eskinder Hailu
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Systems and Methods for PLL Linearity Measurement, PLL Output Duty...
Publication number
20090146743
Publication date
Jun 11, 2009
Masaaki Kaneko
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Structure for a Duty Cycle Measurement Circuit
Publication number
20090138834
Publication date
May 28, 2009
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Duty Cycle Measurement Method and Apparatus for Various Signals Thr...
Publication number
20090128133
Publication date
May 21, 2009
David W. Boerstler
G01 - MEASURING TESTING
Information
Patent Application
Structure for a Circuit Obtaining Desired Phase Locked Loop Duty Cy...
Publication number
20090132971
Publication date
May 21, 2009
International Business Machines Corporation
David W. Boerstler
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Apparatus and Method for Obtaining Desired Phase Locked Loop Duty C...
Publication number
20090128206
Publication date
May 21, 2009
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Absolute Duty Cycle Measurement Method and Apparatus
Publication number
20090125262
Publication date
May 14, 2009
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Design Structure for an Absolute Duty Cycle Measurement Circuit
Publication number
20090125857
Publication date
May 14, 2009
International Business Machines Corporation
David W. Boerstler
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Design Structure For A Duty Cycle Measurement Apparatus That Operat...
Publication number
20090112555
Publication date
Apr 30, 2009
International Business Machines Corporation
David William Boerstler
G01 - MEASURING TESTING
Information
Patent Application
Programmable Interpolative Voltage Controlled Oscillator with Adjus...
Publication number
20090066424
Publication date
Mar 12, 2009
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Structure for a Phase Locked Loop with Adjustable Voltage Based on...
Publication number
20090021314
Publication date
Jan 22, 2009
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ADJUSTING VOLTAGE FOR A PHASE LOCKED LOOP BASED ON TEMPERATURE
Publication number
20090024349
Publication date
Jan 22, 2009
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Design Structure for a Phase Locked Loop with Stabilized Dynamic Re...
Publication number
20090007047
Publication date
Jan 1, 2009
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Phase Locked Loop with Stabilized Dynamic Response
Publication number
20090002038
Publication date
Jan 1, 2009
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Systems and Methods for Level Shifting using AC Coupling
Publication number
20080309395
Publication date
Dec 18, 2008
Masaaki Kaneko
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Circuit to Reduce Transient Current Swings During Mode Transitions...
Publication number
20080272820
Publication date
Nov 6, 2008
International Business Machines Corporation
David William Boerstler
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Duty Cycle Correction Circuit Whose Operation is Largely Independen...
Publication number
20080246524
Publication date
Oct 9, 2008
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Design Structure for a Duty Cycle Correction Circuit
Publication number
20080229270
Publication date
Sep 18, 2008
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
INTERLEAVED VOLTAGE CONTROLLED OSCILLATOR
Publication number
20080222585
Publication date
Sep 11, 2008
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
INTERLEAVED VOLTAGE CONTROLLED OSCILLATOR
Publication number
20080191809
Publication date
Aug 14, 2008
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
INTERLEAVED VOLTAGE CONTROLLED OSCILLATOR
Publication number
20080186104
Publication date
Aug 7, 2008
International Business Machines Corporation
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
METHOD AND APPARATUS FOR MEASURING THE DUTY CYCLE OF A DIGITAL SIGNAL
Publication number
20080174345
Publication date
Jul 24, 2008
IBM Corporation
David William Boerstler
G01 - MEASURING TESTING
Information
Patent Application
SYSTEM FOR AUTOMATICALLY SELECTING INTERMEDIATE POWER SUPPLY VOLTAG...
Publication number
20080143419
Publication date
Jun 19, 2008
David William Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Extracting a Maximum Pulse Width of a Pulse Width Limiter
Publication number
20080136480
Publication date
Jun 12, 2008
David W. Boerstler
H03 - BASIC ELECTRONIC CIRCUITRY