P

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 patents
US9942463B2Apr 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 patent

Showing the top 50 of 120 patents by PatentIndex Score.