Yu-Cheng Chang

Person

Cupertino, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Image compression technique for low-power, always-on camera systems
- Patent number 11,451,828
- Issue date Sep 20, 2022
- OmniVision Technologies, Inc.
- Yu-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system to calibrate camera devices of a vehicle vision s...
- Patent number 11,172,193
- Issue date Nov 9, 2021
- ARGO AI, LLC
- Dikpal Reddy
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Power line resistance sensing device
- Patent number 10,404,055
- Issue date Sep 3, 2019
- ALFASEMI INC.
- Yu-Cheng Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Voltage regulation circuit for LED tube
- Patent number 10,182,479
- Issue date Jan 15, 2019
- ALFASEMI INC.
- Te-Lung Shih
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
LED device with energy compensation
- Patent number 9,848,472
- Issue date Dec 19, 2017
- ALFASEMI INC.
- Yu-Cheng Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High-safety LED tube
- Patent number 9,717,128
- Issue date Jul 25, 2017
- ALFASEMI INC.
- Te-Lung Shih
- F21 - LIGHTING
Information Patent Grant
Filament simulation circuit for LED tube
- Patent number 9,674,910
- Issue date Jun 6, 2017
- ALFASEMI INC.
- Te-Lung Shih
- F21 - LIGHTING
Information Patent Grant
LED control circuit
- Patent number 9,615,421
- Issue date Apr 4, 2017
- ALFASEMI INC.
- Yu-Cheng Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Adaptive switch mode LED driver
- Patent number 9,451,664
- Issue date Sep 20, 2016
- Dialog Semiconductor Inc.
- Xuecheng Jin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
LED control system suitable for different types of power sources
- Patent number 9,433,052
- Issue date Aug 30, 2016
- ALFASEMI INC.
- Yu-Cheng Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Voltage/current control apparatus and method
- Patent number 8,729,881
- Issue date May 20, 2014
- Alpha and Omega Semiconductor Ltd.
- Yu Cheng Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Adaptive switch mode LED driver
- Patent number 8,334,662
- Issue date Dec 18, 2012
- iWatt Inc.
- Xuecheng Jin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Integrated circuit capable of synchronization signal detection
- Patent number 8,125,160
- Issue date Feb 28, 2012
- O2Micro International Limited
- Yung-Lin Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voltage/current control apparatus and method
- Patent number 7,977,930
- Issue date Jul 12, 2011
- Alpha and Omega Semiconductor, Ltd.
- Yu Cheng Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Sequential burst mode activation circuit
- Patent number 7,847,491
- Issue date Dec 7, 2010
- O2Micro International Limited
- Yung-Lin Lin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
One-time programmable (OTP) memory cell
- Patent number 7,805,687
- Issue date Sep 28, 2010
- Alpha & Omega Semiconductor, Ltd.
- YongZhong Hu
- G11 - INFORMATION STORAGE
Information Patent Grant
Integrated circuit capable of synchronization signal detection
- Patent number 7,598,679
- Issue date Oct 6, 2009
- O2Micro International Limited
- Yung-Lin Lin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Voltage/current control apparatus and method
- Patent number 7,557,554
- Issue date Jul 7, 2009
- Alpha and Omega Semiconductor, Ltd.
- Yu Cheng Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Sequential burst mode activation circuit
- Patent number 7,477,024
- Issue date Jan 13, 2009
- O2Micro International Limited
- Yung-Lin Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High efficiency single-inductor dual-control loop power converter
- Patent number 7,400,118
- Issue date Jul 15, 2008
- Alpha and Omega Semiconductor, Ltd.
- Zhiye Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
High speed optical transmission assembly
- Patent number 7,039,083
- Issue date May 2, 2006
- Opnext, Inc.
- Chris H. Carroll
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Sequential burst mode activation circuit
- Patent number 6,707,264
- Issue date Mar 16, 2004
- 2Micro International Limited
- Yung-Lin Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Sequential burst mode activation circuit
- Patent number 6,501,234
- Issue date Dec 31, 2002
- 02 Micro International Limited
- Yung-Lin Lin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power control of remote communication devices
- Patent number 6,169,907
- Issue date Jan 2, 2001
- interWAVE Communications International Ltd.
- Yu-Wen Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD TO DETECT RADAR INSTALLATION ERROR FOR PITCH ANGLE ON AUTONO...
- Publication number 20230168363
- Publication date Jun 1, 2023
- ARGO AI, LLC
- Yu-Wei CHANG
- G01 - MEASURING TESTING
Information Patent Application
Adaptive Switch Mode LED Driver
- Publication number 20130127344
- Publication date May 23, 2013
- Xuecheng Jin
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD
- Publication number 20120293144
- Publication date Nov 22, 2012
- ALPHA & OMEGA SEMICONDUCTOR, LTD.
- Yu Cheng Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Adaptive Switch Mode LED Driver
- Publication number 20110062872
- Publication date Mar 17, 2011
- Xuecheng Jin
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD
- Publication number 20090273328
- Publication date Nov 5, 2009
- ALPHA & OMEGA SEMICONDUCTOR, LTD.
- Yu Cheng Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Sequential burst mode actlvation circuit
- Publication number 20090218954
- Publication date Sep 3, 2009
- O2Micro International
- Yung-Lin Lin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD
- Publication number 20090079409
- Publication date Mar 26, 2009
- ALPHA & OMEGA SEMICONDUCTOR, LTD.
- Yu Cheng Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Tri-states one-time programmable memory (OTP) cell
- Publication number 20070069297
- Publication date Mar 29, 2007
- YongZhong Hu
- G11 - INFORMATION STORAGE
Information Patent Application
Sequential burnst mode activation circuit
- Publication number 20040183469
- Publication date Sep 23, 2004
- Yung-Lin Lin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
High speed optical transmission assembly
- Publication number 20040179562
- Publication date Sep 16, 2004
- Chris H. Carroll
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Sequential burst mode activation circuit
- Publication number 20030071586
- Publication date Apr 17, 2003
- Yung-Lin Lin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Sequential burst mode activation circuit
- Publication number 20020125863
- Publication date Sep 12, 2002
- Yung-Lin Lin
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Yu-Cheng Chang

Person

Patents Grantslast 30 patents

Image compression technique for low-power, always-on camera systems

Method and system to calibrate camera devices of a vehicle vision s...

Power line resistance sensing device

Voltage regulation circuit for LED tube

LED device with energy compensation

High-safety LED tube

Filament simulation circuit for LED tube

LED control circuit

Adaptive switch mode LED driver

LED control system suitable for different types of power sources

Voltage/current control apparatus and method

Adaptive switch mode LED driver

Integrated circuit capable of synchronization signal detection

Voltage/current control apparatus and method

Sequential burst mode activation circuit

One-time programmable (OTP) memory cell

Integrated circuit capable of synchronization signal detection

Voltage/current control apparatus and method

Sequential burst mode activation circuit

High efficiency single-inductor dual-control loop power converter

High speed optical transmission assembly

Sequential burst mode activation circuit

Sequential burst mode activation circuit

Power control of remote communication devices

Patents Applicationslast 30 patents

METHOD TO DETECT RADAR INSTALLATION ERROR FOR PITCH ANGLE ON AUTONO...

Adaptive Switch Mode LED Driver

VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD

Adaptive Switch Mode LED Driver

VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD

Sequential burst mode actlvation circuit

VOLTAGE/CURRENT CONTROL APPARATUS AND METHOD

Tri-states one-time programmable memory (OTP) cell

Sequential burnst mode activation circuit

High speed optical transmission assembly

Sequential burst mode activation circuit

Sequential burst mode activation circuit