Keng-Hao Chang

Person

Hsinchu City, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Charging device and charging system based on master-slave relationship
- Patent number 12,095,290
- Issue date Sep 17, 2024
- CANYON SEMICONDUCTOR INC.
- Tzu Chieh Su
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Image output device and image output method
- Patent number 12,020,668
- Issue date Jun 25, 2024
- Coretronic Corporation
- Keng-Chia Chang
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Crystal oscillator and phase noise reduction method thereof
- Patent number 11,671,056
- Issue date Jun 6, 2023
- Mediatek Inc.
- Sen-You Liu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and circuit for monitoring and controlling duty margin of a...
- Patent number 11,611,334
- Issue date Mar 21, 2023
- Mediatek Inc.
- Shou-En Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Crystal oscillator and phase noise reduction method thereof
- Patent number 11,606,063
- Issue date Mar 14, 2023
- Mediatek Inc.
- Chien-Wei Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Fast start-up crystal oscillator and fast start-up method thereof
- Patent number 11,387,781
- Issue date Jul 12, 2022
- Mediatek Inc.
- Keng-Meng Chang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal oscillator and phase noise reduction method thereof
- Patent number 11,342,884
- Issue date May 24, 2022
- Mediatek Inc.
- Chien-Wei Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Crystal oscillator and phase noise reduction method thereof
- Patent number 11,309,835
- Issue date Apr 19, 2022
- Mediatek Inc.
- Sen-You Liu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor device having source/drain with a protrusion
- Patent number 11,270,888
- Issue date Mar 8, 2022
- Taiwan Semiconductor Manufacturing Company, Ltd
- Chia-Yang Wu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compensation module, oscillation circuit, and associated compensati...
- Patent number 10,826,429
- Issue date Nov 3, 2020
- Mediatek Inc.
- Keng-Meng Chang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of forming semiconductor device using titanium-containing la...
- Patent number 10,658,186
- Issue date May 19, 2020
- Taiwan Semiconductor Manufacturing Company, Ltd
- Chia-Yang Wu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of forming semiconductor device using titanium-containing la...
- Patent number 10,163,643
- Issue date Dec 25, 2018
- Taiwan Semiconductor Manufacturing Company, Ltd
- Chia-Yang Wu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Biased impedance circuit, impedance adjustment circuit, and associa...
- Patent number 9,906,209
- Issue date Feb 27, 2018
- Mediatek Inc.
- Keng-Meng Chang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Local oscillation generator, associated communication system and me...
- Patent number 9,391,562
- Issue date Jul 12, 2016
- MStar Semiconductor, Inc.
- Chih-Ming Hung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Local oscillation generator and associated communication system and...
- Patent number 9,300,507
- Issue date Mar 29, 2016
- MStar Semiconductor, Inc.
- Keng-Meng Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensing device and image sensing method
- Patent number 8,421,895
- Issue date Apr 16, 2013
- Pixart Imaging Inc.
- Le-Chun Ho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image sensing device and image sensing method
- Patent number 8,164,667
- Issue date Apr 24, 2012
- Pixart Imaging Inc.
- Le-Chun Ho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
CHARGING DEVICE AND CHARGING SYSTEM BASED ON MASTER-SLAVE RELATIONSHIP
- Publication number 20230093533
- Publication date Mar 23, 2023
- CANYON SEMICONDUCTOR INC.
- Tzu Chieh SU
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF
- Publication number 20220209714
- Publication date Jun 30, 2022
- MEDIATEK INC.
- Sen-You Liu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF
- Publication number 20220209715
- Publication date Jun 30, 2022
- MEDIATEK INC.
- Chien-Wei Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method and circuit for monitoring and controlling duty margin of a...
- Publication number 20220166412
- Publication date May 26, 2022
- MEDIATEK INC.
- Shou-En Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE OUTPUT DEVICE AND IMAGE OUTPUT METHOD
- Publication number 20220165237
- Publication date May 26, 2022
- CORETRONIC CORPORATION
- Keng-Chia Chang
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF
- Publication number 20220069773
- Publication date Mar 3, 2022
- MEDIATEK INC.
- Sen-You Liu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF
- Publication number 20220069772
- Publication date Mar 3, 2022
- MEDIATEK INC.
- Chien-Wei Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SEMICONDUCTOR DEVICE HAVING SOURCE/DRAIN WITH A PROTRUSION
- Publication number 20200266069
- Publication date Aug 20, 2020
- Taiwan Semiconductor Manufacturing Company, Ltd.
- Chia-Yang WU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPENSATION MODULE, OSCILLATION CIRCUIT, AND ASSOCIATED COMPENSATI...
- Publication number 20190165730
- Publication date May 30, 2019
- MEDIATEK INC.
- Keng-Meng CHANG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
METHOD OF FORMING SEMICONDUCTOR DEVICE USING TITANIUM-CONTAINING LA...
- Publication number 20190148152
- Publication date May 16, 2019
- Taiwan Semiconductor Manufacturing Company, Ltd.
- Chia-Yang WU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF FORMING SEMICONDUCTOR DEVICE USING TITANIUM-CONTAINING LA...
- Publication number 20180166287
- Publication date Jun 14, 2018
- Taiwan Semiconductor Manufacturing Company, Ltd.
- Chia-Yang WU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BIASED IMPEDANCE CIRCUIT, IMPEDANCE ADJUSTMENT CIRCUIT, AND ASSOCIA...
- Publication number 20170346464
- Publication date Nov 30, 2017
- MEDIATEK INC.
- Keng-Meng Chang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
LOCAL OSCILLATION GENERATOR, ASSOCIATED COMMUNICATION SYSTEM AND ME...
- Publication number 20140092892
- Publication date Apr 3, 2014
- Mstar Semiconductor, Inc.
- Chih-Ming Hung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LOCAL OSCILLATION GENERATOR AND ASSOCIATED COMMUNICATION SYSTEM AND...
- Publication number 20140029690
- Publication date Jan 30, 2014
- Keng-Meng Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE SENSING DEVICE AND IMAGE SENSING METHOD
- Publication number 20100283877
- Publication date Nov 11, 2010
- Pixart Imaging Inc.
- Le-Chun Ho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Keng-Hao Chang

Person

Patents Grantslast 30 patents

Charging device and charging system based on master-slave relationship

Image output device and image output method

Crystal oscillator and phase noise reduction method thereof

Method and circuit for monitoring and controlling duty margin of a...

Crystal oscillator and phase noise reduction method thereof

Fast start-up crystal oscillator and fast start-up method thereof

Crystal oscillator and phase noise reduction method thereof

Crystal oscillator and phase noise reduction method thereof

Semiconductor device having source/drain with a protrusion

Compensation module, oscillation circuit, and associated compensati...

Method of forming semiconductor device using titanium-containing la...

Method of forming semiconductor device using titanium-containing la...

Biased impedance circuit, impedance adjustment circuit, and associa...

Local oscillation generator, associated communication system and me...

Local oscillation generator and associated communication system and...

Image sensing device and image sensing method

Image sensing device and image sensing method

Patents Applicationslast 30 patents

CHARGING DEVICE AND CHARGING SYSTEM BASED ON MASTER-SLAVE RELATIONSHIP

CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF

CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF

Method and circuit for monitoring and controlling duty margin of a...

IMAGE OUTPUT DEVICE AND IMAGE OUTPUT METHOD

CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF

CRYSTAL OSCILLATOR AND PHASE NOISE REDUCTION METHOD THEREOF

SEMICONDUCTOR DEVICE HAVING SOURCE/DRAIN WITH A PROTRUSION

COMPENSATION MODULE, OSCILLATION CIRCUIT, AND ASSOCIATED COMPENSATI...

METHOD OF FORMING SEMICONDUCTOR DEVICE USING TITANIUM-CONTAINING LA...

METHOD OF FORMING SEMICONDUCTOR DEVICE USING TITANIUM-CONTAINING LA...

BIASED IMPEDANCE CIRCUIT, IMPEDANCE ADJUSTMENT CIRCUIT, AND ASSOCIA...

LOCAL OSCILLATION GENERATOR, ASSOCIATED COMMUNICATION SYSTEM AND ME...

LOCAL OSCILLATION GENERATOR AND ASSOCIATED COMMUNICATION SYSTEM AND...

IMAGE SENSING DEVICE AND IMAGE SENSING METHOD