Gim Eng Chew

Person

Penang, MY

People

Patents Grantslast 30 patents

Information Patent Grant
Light control circuit of optical encoder and operating method thereof
- Patent number 12,181,313
- Issue date Dec 31, 2024
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with two index photodiodes having different width f...
- Patent number 12,174,048
- Issue date Dec 24, 2024
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoding system compensating assembly tolerance
- Patent number 12,025,476
- Issue date Jul 2, 2024
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Signal processing circuit of anti-pollution optical encoder
- Patent number 11,994,416
- Issue date May 28, 2024
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with reduced comparators
- Patent number 11,831,320
- Issue date Nov 28, 2023
- Swee-Lin Thor
- G01 - MEASURING TESTING
Information Patent Grant
Light control circuit and frequency detector of optical encoder sys...
- Patent number 11,774,269
- Issue date Oct 3, 2023
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Anti-pollution optical encoder
- Patent number 11,740,108
- Issue date Aug 29, 2023
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with covered photo diode
- Patent number 11,709,077
- Issue date Jul 25, 2023
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with interpolation circuit
- Patent number 11,616,503
- Issue date Mar 28, 2023
- PixArt Imaging Inc.
- Swee-Lin Thor
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Interpolation circuit of optical encoder
- Patent number 11,371,864
- Issue date Jun 28, 2022
- PixArt Imaging Inc.
- Swee-Lin Thor
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Light control circuit adapting to input signal frequency and operat...
- Patent number 11,333,532
- Issue date May 17, 2022
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
General purpose interface bus (GPIB) sniffer system and method
- Patent number 11,281,611
- Issue date Mar 22, 2022
- Jabil Inc.
- Kooi Heng Ooi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical encoder with covered photo diode
- Patent number 11,237,024
- Issue date Feb 1, 2022
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Interpolation circuit and motor driving circuit
- Patent number 11,171,584
- Issue date Nov 9, 2021
- Pix Art Imaging Inc.
- Swee Lin Thor
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Phase shifter circuit of optical encoder and operating method thereof
- Patent number 11,108,385
- Issue date Aug 31, 2021
- PixArt Imaging Inc.
- Chung-Min Thor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical encoder and interpolation circuit and operating method thereof
- Patent number 11,073,413
- Issue date Jul 27, 2021
- PixArt Imaging Inc.
- Swee-Lin Thor
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Light control circuit and optical encoder system
- Patent number 10,728,972
- Issue date Jul 28, 2020
- PixArt Imaging Inc.
- Kuan-Choong Shim
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light control circuit and optical encoder system
- Patent number 10,462,869
- Issue date Oct 29, 2019
- PixArt Imaging Inc.
- Kuan-Choong Shim
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light control circuit and optical encoder system
- Patent number 10,187,948
- Issue date Jan 22, 2019
- PixArt Imaging Inc.
- Kuan-Choong Shim
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with a current regulating circuit for a light emitter
- Patent number 8,890,045
- Issue date Nov 18, 2014
- Avago Technologies General IP (Singapore) Pte. Ltd.
- Kheng Hin Toh
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Hysteresis-compensating interpolation circuits in optical encoders
- Patent number 8,841,600
- Issue date Sep 23, 2014
- Avago Technologies General IP (Singapore) Pte. Ltd.
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with signal offset correction system
- Patent number 8,835,832
- Issue date Sep 16, 2014
- Avago Technologies General IP (Singapore) Pte. Ltd.
- Gim Eng Chew
- G01 - MEASURING TESTING
Information Patent Grant
High resolution, high speed, miniaturized optical encoder
- Patent number 8,330,098
- Issue date Dec 11, 2012
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Grant
High resolution single track optical encoder
- Patent number 8,097,842
- Issue date Jan 17, 2012
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Grant
Temperature compensation circuit and method
- Patent number 8,067,992
- Issue date Nov 29, 2011
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Alex Jianzhong Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Automatic gain control for motion encoder signals
- Patent number 8,035,074
- Issue date Oct 11, 2011
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with code wheel misalignment detection and automati...
- Patent number 7,977,623
- Issue date Jul 12, 2011
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Grant
Photodetector having dark current correction
- Patent number 7,879,641
- Issue date Feb 1, 2011
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Farn Hin Chen
- G01 - MEASURING TESTING
Information Patent Grant
Interpolation accuracy improvement in motion encoder systems, devic...
- Patent number 7,880,658
- Issue date Feb 1, 2011
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Kheng Hin Toh
- G01 - MEASURING TESTING
Information Patent Grant
Interpolation accuracy improvement in motion encoder systems, devic...
- Patent number 7,880,657
- Issue date Feb 1, 2011
- Avago Technologies ECBU IP (Singapore) Pte Ltd
- Mei Yee Ng
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ENCODING SYSTEM COMPENSATING ASSEMBLY TOLERANCE
- Publication number 20240361158
- Publication date Oct 31, 2024
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODING SYSTEM WITH REDUCED TOTAL HARMONIC DISTORTION
- Publication number 20240230321
- Publication date Jul 11, 2024
- PIXART IMAGING INC.
- Meng-Yee LIM
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODING SYSTEM WITH REDUCED TOTAL HARMONIC DISTORTION
- Publication number 20240133680
- Publication date Apr 25, 2024
- PIXART IMAGING INC.
- Meng-Yee LIM
- G01 - MEASURING TESTING
Information Patent Application
LIGHT CONTROL CIRCUIT OF OPTICAL ENCODER AND OPERATING METHOD THEREOF
- Publication number 20230408304
- Publication date Dec 21, 2023
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
SIGNAL PROCESSING CIRCUIT OF ANTI-POLLUTION OPTICAL ENCODER
- Publication number 20230349732
- Publication date Nov 2, 2023
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER WITH TWO INDEX PHOTODIODES
- Publication number 20230314187
- Publication date Oct 5, 2023
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER WITH REDUCED COMPARATORS
- Publication number 20230208412
- Publication date Jun 29, 2023
- PIXART IMAGING INC.
- Swee-Lin THOR
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
OPTICAL ENCODER WITH INTERPOLATION CIRCUIT
- Publication number 20220276075
- Publication date Sep 1, 2022
- PixArt Imaging Inc.
- Swee-Lin THOR
- G01 - MEASURING TESTING
Information Patent Application
LIGHT CONTROL CIRCUIT AND FREQUENCY DETECTOR OF OPTICAL ENCODER SYS...
- Publication number 20220221312
- Publication date Jul 14, 2022
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
ANTI-POLLUTION OPTICAL ENCODER AND SIGNAL PROCESSING CIRCUIT THEREOF
- Publication number 20220163353
- Publication date May 26, 2022
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER WITH COVERED PHOTO DIODE
- Publication number 20220099464
- Publication date Mar 31, 2022
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
INTERPOLATION CIRCUIT AND MOTOR DRIVING CIRCUIT
- Publication number 20210351726
- Publication date Nov 11, 2021
- PixArt Imaging Inc.
- Swee Lin THOR
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
INTERPOLATION CIRCUIT OF OPTICAL ENCODER
- Publication number 20210318146
- Publication date Oct 14, 2021
- PIXART IMAGING INC.
- Swee-Lin THOR
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
General Purpose Interface Bus (GPIB) Sniffer System and Method
- Publication number 20210081342
- Publication date Mar 18, 2021
- Jabil Inc.
- Kooi Heng Ooi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
OPTICAL ENCODER AND INTERPOLATION CIRCUIT AND OPERATING METHOD THEREOF
- Publication number 20200166383
- Publication date May 28, 2020
- PIXART IMAGING INC.
- Swee-Lin THOR
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
OPTICAL ENCODER WITH COVERED PHOTO DIODE
- Publication number 20200109968
- Publication date Apr 9, 2020
- PIXART IMAGING INC.
- Kuan-Choong SHIM
- G01 - MEASURING TESTING
Information Patent Application
LIGHT CONTROL CIRCUIT AND OPTICAL ENCODER SYSTEM
- Publication number 20200022235
- Publication date Jan 16, 2020
- PIXART IMAGING INC.
- KUAN-CHOONG SHIM
- G01 - MEASURING TESTING
Information Patent Application
Optical Encoder With An LED Current Regulation System
- Publication number 20130228676
- Publication date Sep 5, 2013
- Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- Kheng Hin Toh
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER WITH SIGNAL OFFSET CORRECTION SYSTEM
- Publication number 20130181122
- Publication date Jul 18, 2013
- Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- Gim Eng Chew
- G01 - MEASURING TESTING
Information Patent Application
Hysteresis-Compensating Interpolation Circuits in Optical Encoders
- Publication number 20120104236
- Publication date May 3, 2012
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Chung Min Thor
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
High Resolution, High Speed, Miniaturized Optical Encoder
- Publication number 20120006976
- Publication date Jan 12, 2012
- Avago Technologies ECBU(Singapore) Pte, Ltd.
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Application
High Resolution Single Track Optical Encoder
- Publication number 20100301195
- Publication date Dec 2, 2010
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Application
PHOTODETECTOR HAVING DARK CURRENT CORRECTION
- Publication number 20100302532
- Publication date Dec 2, 2010
- Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- Farn Hin Chen
- G01 - MEASURING TESTING
Information Patent Application
Optical Encoder with Code Wheel Misalignment Detection and Automati...
- Publication number 20100252719
- Publication date Oct 7, 2010
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Chung Min Thor
- G01 - MEASURING TESTING
Information Patent Application
Interpolation Accuracy Improvement in Motion Encoder Systems, Devic...
- Publication number 20100214139
- Publication date Aug 26, 2010
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Kheng Hin Toh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Interpolation Accuracy Improvement in Motion Encoder Systems, Devic...
- Publication number 20100213997
- Publication date Aug 26, 2010
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Mei Yee Ng
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Automatic Gain Control for Motion Encoder Signals
- Publication number 20100201422
- Publication date Aug 12, 2010
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Chung Min Thor
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Temperature Compensation Circuit and Method
- Publication number 20090302954
- Publication date Dec 10, 2009
- Avago Technologies ECBU (Singapore) Ple. Ltd.
- Alex Jianzhong Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Optical Encoder with Amplitude Correction
- Publication number 20090272884
- Publication date Nov 5, 2009
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Kheng Hin Toh
- G01 - MEASURING TESTING
Information Patent Application
Optical Encoder with Code Wheel Misalignment Correction and Automat...
- Publication number 20090272885
- Publication date Nov 5, 2009
- Avago Technologies ECBU (Singapore) Pte. Ltd.
- Chung Min Thor
- G01 - MEASURING TESTING

Gim Eng Chew

Person

Patents Grantslast 30 patents

Light control circuit of optical encoder and operating method thereof

Optical encoder with two index photodiodes having different width f...

Optical encoding system compensating assembly tolerance

Signal processing circuit of anti-pollution optical encoder

Optical encoder with reduced comparators

Light control circuit and frequency detector of optical encoder sys...

Anti-pollution optical encoder

Optical encoder with covered photo diode

Optical encoder with interpolation circuit

Interpolation circuit of optical encoder

Light control circuit adapting to input signal frequency and operat...

General purpose interface bus (GPIB) sniffer system and method

Optical encoder with covered photo diode

Interpolation circuit and motor driving circuit

Phase shifter circuit of optical encoder and operating method thereof

Optical encoder and interpolation circuit and operating method thereof

Light control circuit and optical encoder system

Light control circuit and optical encoder system

Light control circuit and optical encoder system

Optical encoder with a current regulating circuit for a light emitter

Hysteresis-compensating interpolation circuits in optical encoders

Optical encoder with signal offset correction system

High resolution, high speed, miniaturized optical encoder

High resolution single track optical encoder

Temperature compensation circuit and method

Automatic gain control for motion encoder signals

Optical encoder with code wheel misalignment detection and automati...

Photodetector having dark current correction

Interpolation accuracy improvement in motion encoder systems, devic...

Interpolation accuracy improvement in motion encoder systems, devic...

Patents Applicationslast 30 patents

OPTICAL ENCODING SYSTEM COMPENSATING ASSEMBLY TOLERANCE

OPTICAL ENCODING SYSTEM WITH REDUCED TOTAL HARMONIC DISTORTION

OPTICAL ENCODING SYSTEM WITH REDUCED TOTAL HARMONIC DISTORTION

LIGHT CONTROL CIRCUIT OF OPTICAL ENCODER AND OPERATING METHOD THEREOF

SIGNAL PROCESSING CIRCUIT OF ANTI-POLLUTION OPTICAL ENCODER

OPTICAL ENCODER WITH TWO INDEX PHOTODIODES

OPTICAL ENCODER WITH REDUCED COMPARATORS

OPTICAL ENCODER WITH INTERPOLATION CIRCUIT

LIGHT CONTROL CIRCUIT AND FREQUENCY DETECTOR OF OPTICAL ENCODER SYS...

ANTI-POLLUTION OPTICAL ENCODER AND SIGNAL PROCESSING CIRCUIT THEREOF

OPTICAL ENCODER WITH COVERED PHOTO DIODE

INTERPOLATION CIRCUIT AND MOTOR DRIVING CIRCUIT

INTERPOLATION CIRCUIT OF OPTICAL ENCODER

General Purpose Interface Bus (GPIB) Sniffer System and Method

OPTICAL ENCODER AND INTERPOLATION CIRCUIT AND OPERATING METHOD THEREOF

OPTICAL ENCODER WITH COVERED PHOTO DIODE

LIGHT CONTROL CIRCUIT AND OPTICAL ENCODER SYSTEM

Optical Encoder With An LED Current Regulation System

OPTICAL ENCODER WITH SIGNAL OFFSET CORRECTION SYSTEM

Hysteresis-Compensating Interpolation Circuits in Optical Encoders

High Resolution, High Speed, Miniaturized Optical Encoder

High Resolution Single Track Optical Encoder

PHOTODETECTOR HAVING DARK CURRENT CORRECTION

Optical Encoder with Code Wheel Misalignment Detection and Automati...

Interpolation Accuracy Improvement in Motion Encoder Systems, Devic...

Interpolation Accuracy Improvement in Motion Encoder Systems, Devic...

Automatic Gain Control for Motion Encoder Signals

Temperature Compensation Circuit and Method

Optical Encoder with Amplitude Correction

Optical Encoder with Code Wheel Misalignment Correction and Automat...