Chin Chang

Person

Ossining, NY, US

People

Patents Grantslast 30 patents

Information Patent Grant
Digital control of PWM converters with nonlinear gain scheduling
- Patent number 8,427,126
- Issue date Apr 23, 2013
- Semtech Corporation
- Hao Peng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable on-time control method for high light-load efficiency, sma...
- Patent number 8,344,703
- Issue date Jan 1, 2013
- Semtech Corporation
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Transformation structures for approximating color matching functions
- Patent number 7,593,567
- Issue date Sep 22, 2009
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for improved current mode control for large co...
- Patent number 7,508,182
- Issue date Mar 24, 2009
- Semtech Corporation
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM LED regulator with sample and hold
- Patent number 7,443,209
- Issue date Oct 28, 2008
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
RGB primary color point identification system and method
- Patent number 6,992,803
- Issue date Jan 31, 2006
- Koninklijke Philips Electronics N.V.
- Chin Chang
- G01 - MEASURING TESTING
Information Patent Grant
Seamless highlighting in LCD monitors and LCD-TV
- Patent number 6,894,675
- Issue date May 17, 2005
- Koninklijke Philips Electronics N.V.
- Gert W. Bruning
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Control and drive circuit arrangement for illumination performance...
- Patent number 6,888,529
- Issue date May 3, 2005
- Koninklijke Philips Electronics N.V.
- Gert Bruning
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Voltage-fed push LLC resonant LCD backlighting inverter circuit
- Patent number 6,784,867
- Issue date Aug 31, 2004
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Autonomous solid state lighting system
- Patent number 6,768,047
- Issue date Jul 27, 2004
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LED-based white-light backlighting for electronic displays
- Patent number 6,753,661
- Issue date Jun 22, 2004
- Koninklijke Philips Electronics N.V.
- Subramanian Muthu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Sample and hold method to achieve square-wave PWM current source fo...
- Patent number 6,734,639
- Issue date May 11, 2004
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Solar cell array having lattice or matrix structure and method of a...
- Patent number 6,635,817
- Issue date Oct 21, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Integrated LED driving device with current sharing for multiple LED...
- Patent number 6,621,235
- Issue date Sep 16, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of extended color sense and estimation for RGB LED illuminants
- Patent number 6,600,562
- Issue date Jul 29, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- G01 - MEASURING TESTING
Information Patent Grant
Adaptive control system and method with spatial uniform color metri...
- Patent number 6,552,495
- Issue date Apr 22, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- F21 - LIGHTING
Information Patent Grant
Resonant converter circuit with suppression of transients during ch...
- Patent number 6,541,925
- Issue date Apr 1, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
RGB LED based light driver using microprocessor controlled AC distr...
- Patent number 6,510,995
- Issue date Jan 28, 2003
- Koninklijke Philips Electronics N.V.
- Subramanian Muthu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and system for driving a capacitively coupled fluorescent lamp
- Patent number 6,509,696
- Issue date Jan 21, 2003
- Koninklijke Philips Electronics N.V.
- Gert Bruning
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Short circuit protection for multiple lamp LCD backlight ballasts w...
- Patent number 6,498,437
- Issue date Dec 24, 2002
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for detecting a short circuit in a lighting sy...
- Patent number 6,496,012
- Issue date Dec 17, 2002
- Koninklijke Philips Electronics, N.V.
- Da Feng Weng
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
LED luminaire with electrically adjusted color balance using photod...
- Patent number 6,495,964
- Issue date Dec 17, 2002
- Koninklijke Philips Electronics N.V.
- Subramanian Muthu
- F21 - LIGHTING
Information Patent Grant
Switchable power converter with coupled inductor boost and coupled...
- Patent number 6,465,991
- Issue date Oct 15, 2002
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
White LED luminary light control system
- Patent number 6,441,558
- Issue date Aug 27, 2002
- Koninklijke Philips Electronics N.V.
- Subramanian Muthu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power feedback power factor correction scheme for multiple lamp ope...
- Patent number 6,429,604
- Issue date Aug 6, 2002
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High frequency electronic ballast with reactive power compensation
- Patent number 6,407,935
- Issue date Jun 18, 2002
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electronic ballast employing a startup transient voltage suppressio...
- Patent number 6,376,999
- Issue date Apr 23, 2002
- Philips Electronics North America Corporation
- Yushan Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Reconfigurable converter for multiple-level input-line voltages
- Patent number 6,373,725
- Issue date Apr 16, 2002
- Philips Electronics North America Corporation
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
White light-emitting-diode lamp driver based on multiple output con...
- Patent number 6,369,525
- Issue date Apr 9, 2002
- Philips Electronics North America
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage regulated electronic ballast for multiple discharge lamps
- Patent number 6,362,575
- Issue date Mar 26, 2002
- Philips Electronics North America Corporation
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
RIDE THROUGH MODE IN LED BACKLIGHT DRIVER FOR AUTOMOTIVE IDLE STOP...
- Publication number 20190274197
- Publication date Sep 5, 2019
- SEMTECH CORPORATION
- Chin Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
OPTIMAL MOSFET DRIVER CIRCUIT FOR REDUCING ELECTROMAGNETIC INTERFER...
- Publication number 20110273220
- Publication date Nov 10, 2011
- Feng LIN
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VARIABLE ON-TIME CONTROL METHOD FOR HIGH LIGHT-LOAD EFFICIENCY, SMA...
- Publication number 20110215771
- Publication date Sep 8, 2011
- Chin CHANG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DIGITAL CONTROL OF PWM CONVERTERS WITH NONLINEAR GAIN SCHEDULING
- Publication number 20110127983
- Publication date Jun 2, 2011
- HAO PENG
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Color temperature correction for phosphor converted leds
- Publication number 20060114201
- Publication date Jun 1, 2006
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Pwm led regulator with sample and hold
- Publication number 20060082397
- Publication date Apr 20, 2006
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Transformation structures for approximating color matching functions
- Publication number 20060045331
- Publication date Mar 2, 2006
- Koninklijke Philips Elctronics N.V.
- Chin Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Autonomous solid state lighting system
- Publication number 20030230334
- Publication date Dec 18, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LED-based white-light backlighting for electronic displays
- Publication number 20030230991
- Publication date Dec 18, 2003
- Koninklijke Philips Electronics N.V.
- Subramanian Muthu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Seamless highlighting in LCD monitors and LCD-TV
- Publication number 20030137484
- Publication date Jul 24, 2003
- Koninklijke Philips Electronics N.V.
- Gert W. Bruning
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD OF EXTENDED COLOR SENSE AND ESTIMATION FOR RGB LED ILLUMINANTS
- Publication number 20030133117
- Publication date Jul 17, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- G01 - MEASURING TESTING
Information Patent Application
RGB led based white light control system with quasi-uniform color m...
- Publication number 20030111533
- Publication date Jun 19, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Solar cell array having lattice or matrix structure and method of a...
- Publication number 20030106579
- Publication date Jun 12, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Capacitively coupled fluorescent lamp package
- Publication number 20030094906
- Publication date May 22, 2003
- Chin Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Power converter circuit having a pair of inversely coupled inductors
- Publication number 20030071601
- Publication date Apr 17, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Sample and hold method to achieve square-wave PWM current source fo...
- Publication number 20030034742
- Publication date Feb 20, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Integrated LED driving device with current sharing for multiple LED...
- Publication number 20030025120
- Publication date Feb 6, 2003
- Koninklijke Philips Electronics N.V.
- Chin Chang
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
RGB primary color point identification system and method
- Publication number 20030011832
- Publication date Jan 16, 2003
- Chin Chang
- G01 - MEASURING TESTING
Information Patent Application
Direct backlighting for liquid crystal displays
- Publication number 20020159002
- Publication date Oct 31, 2002
- Koninklijke Philips Electronics N.V.
- Chin Chang
- G02 - OPTICS
Information Patent Application
RGB LED based light driver using microprocessor controlled AC distr...
- Publication number 20020145041
- Publication date Oct 10, 2002
- Koninklijke Philips Electronics N.V.
- Subramanian Muthu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method and system for driving a capacitively coupled fluorescent lamp
- Publication number 20020135319
- Publication date Sep 26, 2002
- PHILIPS ELECTRONICS NORTH AMERICA CORP.
- Gert Bruning
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Capacitively coupled fluorescent lamp package
- Publication number 20020135316
- Publication date Sep 26, 2002
- PHILIPS ELECTRONICS NORTH AMERICA CORP.
- Gert Bruning
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
White led luminary light control system
- Publication number 20020097000
- Publication date Jul 25, 2002
- PHILIPS ELECTRONICS NORTH AMERICA CORPORATION
- Subramanian Muthu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Control and drive circuit arrangement for illumination performance...
- Publication number 20020070914
- Publication date Jun 13, 2002
- PHILIPS ELECTRONICS NORTH AMERICA CORPORATION
- Gert W. Bruning
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Power feedback power factor correction scheme for multiple lamp ope...
- Publication number 20020011801
- Publication date Jan 31, 2002
- Chin Chang
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Person

Patents Grantslast 30 patents

Digital control of PWM converters with nonlinear gain scheduling

Variable on-time control method for high light-load efficiency, sma...

Transformation structures for approximating color matching functions

Method and apparatus for improved current mode control for large co...

PWM LED regulator with sample and hold

RGB primary color point identification system and method

Seamless highlighting in LCD monitors and LCD-TV

Control and drive circuit arrangement for illumination performance...

Voltage-fed push LLC resonant LCD backlighting inverter circuit

Autonomous solid state lighting system

LED-based white-light backlighting for electronic displays

Sample and hold method to achieve square-wave PWM current source fo...

Solar cell array having lattice or matrix structure and method of a...

Integrated LED driving device with current sharing for multiple LED...

Method of extended color sense and estimation for RGB LED illuminants

Adaptive control system and method with spatial uniform color metri...

Resonant converter circuit with suppression of transients during ch...

RGB LED based light driver using microprocessor controlled AC distr...

Method and system for driving a capacitively coupled fluorescent lamp

Short circuit protection for multiple lamp LCD backlight ballasts w...

Apparatus and method for detecting a short circuit in a lighting sy...

LED luminaire with electrically adjusted color balance using photod...

Switchable power converter with coupled inductor boost and coupled...

White LED luminary light control system

Power feedback power factor correction scheme for multiple lamp ope...

High frequency electronic ballast with reactive power compensation

Electronic ballast employing a startup transient voltage suppressio...

Reconfigurable converter for multiple-level input-line voltages

White light-emitting-diode lamp driver based on multiple output con...

Voltage regulated electronic ballast for multiple discharge lamps

Patents Applicationslast 30 patents

RIDE THROUGH MODE IN LED BACKLIGHT DRIVER FOR AUTOMOTIVE IDLE STOP...

OPTIMAL MOSFET DRIVER CIRCUIT FOR REDUCING ELECTROMAGNETIC INTERFER...

VARIABLE ON-TIME CONTROL METHOD FOR HIGH LIGHT-LOAD EFFICIENCY, SMA...

DIGITAL CONTROL OF PWM CONVERTERS WITH NONLINEAR GAIN SCHEDULING

Color temperature correction for phosphor converted leds

Pwm led regulator with sample and hold

Transformation structures for approximating color matching functions

Autonomous solid state lighting system

LED-based white-light backlighting for electronic displays

Seamless highlighting in LCD monitors and LCD-TV

METHOD OF EXTENDED COLOR SENSE AND ESTIMATION FOR RGB LED ILLUMINANTS

RGB led based white light control system with quasi-uniform color m...

Solar cell array having lattice or matrix structure and method of a...

Capacitively coupled fluorescent lamp package

Power converter circuit having a pair of inversely coupled inductors

Sample and hold method to achieve square-wave PWM current source fo...

Integrated LED driving device with current sharing for multiple LED...

RGB primary color point identification system and method

Direct backlighting for liquid crystal displays

RGB LED based light driver using microprocessor controlled AC distr...

Method and system for driving a capacitively coupled fluorescent lamp

Capacitively coupled fluorescent lamp package

White led luminary light control system

Control and drive circuit arrangement for illumination performance...

Power feedback power factor correction scheme for multiple lamp ope...