Inventor
CHANG YEN-MIN
TW120 patents
⚠️ This page may combine multiple inventors who share the name “CHANG YEN-MIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIXART IMAGING INC
49 patentsUS9942463B2Apr 10, 2018
Camera device without image displaying function
PIXART IMAGING INC65 citations96
US10092244B2Oct 9, 2018
Biometric detection module with denoising function and biometric detection method thereof
PIXART IMAGING INC33 citations94
US10871385B2Dec 22, 2020
Optical encoder capable of identifying absolute positions and operating method thereof
PIXART IMAGING INC38 citations91
US11615642B2Mar 28, 2023
Gesture recognition system employing thermal sensor and image sensor
PIXART IMAGING INC6 citations86
US11328152B2May 10, 2022
Recognition system employing thermal sensor
PIXART IMAGING INC6 citations86
US11657646B2May 23, 2023
Body temperature monitoring device and wearable accessary for measuring basal body temperature
PIXART IMAGING INC3 citations84
US11651620B2May 16, 2023
Medical monitoring system employing thermal sensor
PIXART IMAGING INC3 citations84
US11137770B2Oct 5, 2021
Sensor registering method and event identifying method of smart detection system
PIXART IMAGING INC7 citations84
US9800292B2Oct 24, 2017
Capacitive communication system and Bluetooth pairing method
PIXART IMAGING INC5 citations84
US10248217B2Apr 2, 2019
Motion detection system
PIXART IMAGING INC6 citations83
US11778427B2Oct 3, 2023
Group voice communication of walkie-talkie mode in Bluetooth communication system
PIXART IMAGING INC5 citations74
US11995913B2May 28, 2024
Body temperature monitoring device and wearable accessary for measuring basal body temperature
PIXART IMAGING INC1 citations73
US11369316B2Jun 28, 2022
Heart rate detection architecture
PIXART IMAGING INC2 citations73
US10847049B2Nov 24, 2020
Interactive service platform and operating method thereof
PIXART IMAGING INC2 citations73
US10699558B2Jun 30, 2020
Individualized control system
PIXART IMAGING INC3 citations73
US10478128B2Nov 19, 2019
Heart rate detection architecture
PIXART IMAGING INC2 citations73
US10236935B2Mar 19, 2019
Capacitive touch device and mouse for near field communication
PIXART IMAGING INC3 citations73
US10111571B2Oct 30, 2018
Automatic clean machine control method and automatic clean machine
PIXART IMAGING INC2 citations73
US10110836B2Oct 23, 2018
Image sensing circuit and method capable of obtaining higher image brightness dynamic range
PIXART IMAGING INC2 citations73
US10089802B2Oct 2, 2018
Individualized control system utilizing biometric characteristic
PIXART IMAGING INC3 citations73
US9818245B2Nov 14, 2017
Individualized control system utilizing biometric characteristic
PIXART IMAGING INC4 citations73
US9742402B1Aug 22, 2017
Keyswitch and keyboard with distance detecting function
PIXART IMAGING INC6 citations73
US9727160B2Aug 8, 2017
Displacement detection device and operating method thereof
PIXART IMAGING INC3 citations73
US9423887B2Aug 23, 2016
Method of adjusting sampling precision of a navigation device, related navigation device and related terminal device
PIXART IMAGING INC3 citations73
US10863261B1Dec 8, 2020
Portable apparatus and wearable device
PIXART IMAGING INC2 citations72
US10725554B2Jul 28, 2020
Motion detecting system
PIXART IMAGING INC2 citations72
US11029764B2Jun 8, 2021
Optical detection device and related turntable watch
PIXART IMAGING INC3 citations71
US10704931B2Jul 7, 2020
Optical detecting device capable of determining shift of a multi-axis instruction outputting mechanism
PIXART IMAGING INC2 citations71
US10260918B2Apr 16, 2019
Flow amount measuring apparatus, material mixing system and non transitory computer readable medium performing material mixing method
PIXART IMAGING INC2 citations71
US12380748B2Aug 5, 2025
Scheme for setting/using electronic device as keyless device of vehicle and adjusting devices in the vehicle
PIXART IMAGING INC0 citations63
US12306639B2May 20, 2025
Smart detection system with multiple sensors for detecting same event
PIXART IMAGING INC0 citations63
US12277797B2Apr 15, 2025
Body temperature monitoring device and wearable accessary having thermal sensor
PIXART IMAGING INC0 citations63
US12277798B2Apr 15, 2025
Medical monitoring system with automatic dosing equipment
PIXART IMAGING INC0 citations63
US12002288B2Jun 4, 2024
Medical monitoring system with monitoring camera
PIXART IMAGING INC0 citations63
US11989274B2May 21, 2024
Virtual reality system incorporating wearable accessary
PIXART IMAGING INC1 citations63
US11983956B2May 14, 2024
Electronic device employing thermal sensor and image sensor
PIXART IMAGING INC0 citations63
US11953913B2Apr 9, 2024
Event identifying method of smart detection system
PIXART IMAGING INC0 citations63
US11748464B2Sep 5, 2023
Virtual reality system with high security
PIXART IMAGING INC0 citations63
US11580802B2Feb 14, 2023
Scheme for setting/using electronic device as keyless device of vehicle and adjusting devices in the vehicle
PIXART IMAGING INC0 citations63
US11210381B2Dec 28, 2021
Individualized control system and detection device thereof with high security
PIXART IMAGING INC0 citations63
US11156902B2Oct 26, 2021
Method for automatically focusing on target object, photographic apparatus including automatic focus function, and computer readable medium storing automatic focus function program
PIXART IMAGING INC0 citations63
US11087573B2Aug 10, 2021
Scheme for setting/using electronic device as keyless device of vehicle and adjusting devices in the vehicle
PIXART IMAGING INC0 citations63
US10067407B2Sep 4, 2018
Method for automatically focusing on specific movable object, photographic apparatus including automatic focus function, and computer readable storage medium for storing automatic focus function program
PIXART IMAGING INC1 citations63
US9255795B2Feb 9, 2016
Distance measuring device with increased signal-to-noise ratio and method thereof
PIXART IMAGING INC2 citations63
US9201543B2Dec 1, 2015
Optical navigating apparatus and computer readable recording media for performing optical navigating method
PIXART IMAGING INC2 citations63
US12257514B2Mar 25, 2025
Game board device
PIXART IMAGING INC0 citations62
US12188757B2Jan 7, 2025
Wireless charging device and operation method thereof
PIXART IMAGING INC0 citations62
US12175020B2Dec 24, 2024
Motion detecting system having multiple sensors
PIXART IMAGING INC0 citations62
US12034823B2Jul 9, 2024
Interactive service platform and operating method thereof
PIXART IMAGING INC0 citations62
HSU EN-FENG
1 patentShowing the top 50 of 120 patents by PatentIndex Score.