Bumha Lee

Person

Pleasanton, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Differential amplifier with high-speed common mode feedback
- Patent number 9,467,109
- Issue date Oct 11, 2016
- Texas Instruments Incorporated
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Differential analog signal processing stage with reduced even order...
- Patent number 8,928,398
- Issue date Jan 6, 2015
- Texas Instruments Incorporated
- Bumha Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High-speed unity-gain input buffer having improved linearity and st...
- Patent number 8,847,634
- Issue date Sep 30, 2014
- Texas Instruments Incorporated
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Capacitor mismatch measurement method for switched capacitor circuits
- Patent number 7,830,159
- Issue date Nov 9, 2010
- National Semiconductor Corporation
- Bumha Lee
- G01 - MEASURING TESTING
Information Patent Grant
Locally boosted top plate sampling for a sampling capacitor
- Patent number 7,816,951
- Issue date Oct 19, 2010
- National Semiconductor Corporation
- Bumha Lee
- G11 - INFORMATION STORAGE
Information Patent Grant
Bias device clamping circuit for fast over-range recovery
- Patent number 7,474,154
- Issue date Jan 6, 2009
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Duty cycle stabilizer
- Patent number 7,432,752
- Issue date Oct 7, 2008
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Constant boosted voltage generator circuit for feedback switches in...
- Patent number 7,372,319
- Issue date May 13, 2008
- National Semiconductor Corporation
- Bumha Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Reference voltage generation using compensation current method
- Patent number 7,279,960
- Issue date Oct 9, 2007
- National Semiconductor Corporation
- Bumha Lee
- G05 - CONTROLLING REGULATING
Information Patent Grant
Pipeline ADC using multiplying DAC and analog delay circuits
- Patent number 7,187,318
- Issue date Mar 6, 2007
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
CMOS image sensor oversaturation protection circuit
- Patent number 7,167,200
- Issue date Jan 23, 2007
- National Semiconductor Corporation
- Christina Phan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Black level calibration method for imager with hysteresis compariso...
- Patent number 7,084,911
- Issue date Aug 1, 2006
- Eastman Kodak Company
- Bumha Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic exposure control for an image sensor
- Patent number 7,038,820
- Issue date May 2, 2006
- Eastman Kodak Company
- Willem Johannes Kindt
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Pipeline analog-to-digital converter
- Patent number 6,963,300
- Issue date Nov 8, 2005
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Constant voltage charge-pump circuit with feedback
- Patent number 6,828,851
- Issue date Dec 7, 2004
- National Semiconductor Corporation
- Bumha Lee
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus of system offset calibration with overranging ADC
- Patent number 6,791,484
- Issue date Sep 14, 2004
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High gain and wide bandwidth switched capacitor amplifier having a...
- Patent number 6,778,009
- Issue date Aug 17, 2004
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Programmable gain amplifier with single stage switched capacitor ci...
- Patent number 6,768,374
- Issue date Jul 27, 2004
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital-to-analog converter with a shifted output and an increased...
- Patent number 6,759,975
- Issue date Jul 6, 2004
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Wide gain range and fine gain step programmable gain amplifier with...
- Patent number 6,661,283
- Issue date Dec 9, 2003
- National Semiconductor Corporation
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
DIFFERENTIAL AMPLIFIER WITH HIGH-SPEED COMMON MODE FEEDBACK
- Publication number 20150349734
- Publication date Dec 3, 2015
- TEXAS INSTRUMENTS INCORPORATED
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DIFFERENTIAL ANALOG SIGNAL PROCESSING STAGE WITH REDUCED EVEN ORDER...
- Publication number 20140320191
- Publication date Oct 30, 2014
- TEXAS INSTRUMENTS INCORPORATED
- Bumha Lee
- H03 - BASIC ELECTRONIC CIRCUITRY

Person

Patents Grantslast 30 patents

Differential amplifier with high-speed common mode feedback

Differential analog signal processing stage with reduced even order...

High-speed unity-gain input buffer having improved linearity and st...

Capacitor mismatch measurement method for switched capacitor circuits

Locally boosted top plate sampling for a sampling capacitor

Bias device clamping circuit for fast over-range recovery

Duty cycle stabilizer

Constant boosted voltage generator circuit for feedback switches in...

Reference voltage generation using compensation current method

Pipeline ADC using multiplying DAC and analog delay circuits

CMOS image sensor oversaturation protection circuit

Black level calibration method for imager with hysteresis compariso...

Automatic exposure control for an image sensor

Pipeline analog-to-digital converter

Constant voltage charge-pump circuit with feedback

Method and apparatus of system offset calibration with overranging ADC

High gain and wide bandwidth switched capacitor amplifier having a...

Programmable gain amplifier with single stage switched capacitor ci...

Digital-to-analog converter with a shifted output and an increased...

Wide gain range and fine gain step programmable gain amplifier with...

Patents Applicationslast 30 patents

DIFFERENTIAL AMPLIFIER WITH HIGH-SPEED COMMON MODE FEEDBACK

DIFFERENTIAL ANALOG SIGNAL PROCESSING STAGE WITH REDUCED EVEN ORDER...