Inventor
LIU CHENG-CHIEH
TW55 patents
⚠️ This page may combine multiple inventors who share the name “LIU CHENG-CHIEH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VIVOTEK INC
32 patentsUS10368036B2Jul 30, 2019
Pair of parking area sensing cameras, a parking area sensing method and a parking area sensing system
VIVOTEK INC6 citations73
US10593059B1Mar 17, 2020
Object location estimating method with timestamp alignment function and related object location estimating device
VIVOTEK INC4 citations72
US10186042B2Jan 22, 2019
Object matching method and camera system with an object matching function
VIVOTEK INC5 citations72
US10769478B2Sep 8, 2020
Convolutional neutral network identification efficiency increasing method and related convolutional neutral network identification efficiency increasing device
VIVOTEK INC3 citations69
US10134151B2Nov 20, 2018
Verification method and system for people counting and computer readable storage medium
VIVOTEK INC5 citations69
US12223725B2Feb 11, 2025
Object identification method and related surveillance system
VIVOTEK INC1 citations64
US11030718B1Jun 8, 2021
Image stitching method and related monitoring camera apparatus
VIVOTEK INC2 citations63
US12548338B2Feb 10, 2026
Object sampling method and image analysis apparatus
VIVOTEK INC0 citations62
US11138754B2Oct 5, 2021
Queue analyzing method and image monitoring apparatus
VIVOTEK INC0 citations62
US11030757B1Jun 8, 2021
Queue analyzing method and image monitoring apparatus
VIVOTEK INC0 citations62
US10438060B2Oct 8, 2019
Video flow analysing method and camera device with video flow analysing function
VIVOTEK INC1 citations62
US10192588B2Jan 29, 2019
Method, device, and computer-readable medium for tagging an object in a video
VIVOTEK INC1 citations62
US11216967B2Jan 4, 2022
Queue information analyzing method and related image analyzing apparatus
VIVOTEK INC0 citations61
US11263757B2Mar 1, 2022
Image identifying method and related monitoring camera and monitoring camera system
VIVOTEK INC0 citations56
US11790657B2Oct 17, 2023
Object counting method and surveillance camera
VIVOTEK INC0 citations52
US11393190B2Jul 19, 2022
Object identification method and related monitoring camera apparatus
VIVOTEK INC0 citations52
US11049281B2Jun 29, 2021
Image calibrating method and related monitoring camera system
VIVOTEK INC0 citations52
US10146870B2Dec 4, 2018
Video playback method and surveillance system using the same
VIVOTEK INC0 citations52
US9832455B2Nov 28, 2017
Stereo camera and automatic range finding method for measuring a distance between stereo camera and reference plane
VIVOTEK INC1 citations52
US9367769B2Jun 14, 2016
Device, method for image analysis and computer-readable medium
VIVOTEK INC1 citations52
US10592775B2Mar 17, 2020
Image processing method, image processing device and image processing system
VIVOTEK INC0 citations51
US10140523B2Nov 27, 2018
Setting method of a counting flow path, image monitoring system with setting function of the counting flow path and related computer-readable media
VIVOTEK INC0 citations51
US10097737B2Oct 9, 2018
Image capture system and method for synchronizing image
VIVOTEK INC1 citations51
US11288831B2Mar 29, 2022
Information measuring method and information measuring system
VIVOTEK INC0 citations50
US10477089B2Nov 12, 2019
Image analysis method, camera and image capturing system thereof
VIVOTEK INC0 citations50
US10783380B2Sep 22, 2020
Object counting device, object counting system and object counting method
VIVOTEK INC0 citations48
US12387499B2Aug 12, 2025
Image identification method and image surveillance apparatus
VIVOTEK INC0 citations45
US10573014B2Feb 25, 2020
Image processing system and lens state determination method
VIVOTEK INC0 citations42
US10528822B2Jan 7, 2020
Visitor grouping method and image processing device
VIVOTEK INC0 citations42
US10453212B2Oct 22, 2019
Wireless transmitting/receiving system, wireless receiving device and wireless transmitting/receiving method
VIVOTEK INC0 citations42
US12094211B2Sep 17, 2024
Surveillance region identifying method and surveillance apparatus
VIVOTEK INC0 citations41
US10354361B2Jul 16, 2019
Image stitching method and camera system with an image stitching function
VIVOTEK INC0 citations40
DELTA ELECTRONICS INC
13 patentsUS7701158B2Apr 20, 2010
Fan system and speed detecting device thereof
DELTA ELECTRONICS INC11 citations83
US7425809B2Sep 16, 2008
Heat dissipation devices
DELTA ELECTRONICS INC9 citations82
US7218073B2May 15, 2007
Fan motor speed control circuit
DELTA ELECTRONICS INC17 citations81
US9903381B2Feb 27, 2018
System and method for controlling forward/reverse rotation of fan
DELTA ELECTRONICS INC7 citations78
US11473584B2Oct 18, 2022
Method of starting a fan using an open loop starting stage with a decreasing drive signal value
DELTA ELECTRONICS INC4 citations72
US9973118B2May 15, 2018
Motor drive circuit, method for detecting single phase DC motor rotation direction and method for starting motor
DELTA ELECTRONICS INC2 citations72
US7291949B2Nov 6, 2007
Mounting structure for motor controller of heat-dissipating device
DELTA ELECTRONICS INC5 citations62
US7164249B2Jan 16, 2007
Fan control device and method
DELTA ELECTRONICS INC2 citations62
US9316230B2Apr 19, 2016
Thin fan, electronic system and manufacturing method of thin fan
DELTA ELECTRONICS INC2 citations60
US11933309B2Mar 19, 2024
Method of starting a fan using an open loop starting stage with a decreasing drive signal value
DELTA ELECTRONICS INC0 citations51
US8922148B2Dec 30, 2014
Motor and control method thereof
DELTA ELECTRONICS INC0 citations51
US7694157B2Apr 6, 2010
Heat dissipation device and control method for same
DELTA ELECTRONICS INC0 citations50
US10064286B2Aug 28, 2018
Thin fan, electronic system and manufacturing method of thin fan
DELTA ELECTRONICS INC0 citations49
CHEN CHAO-HO
1 patentQISDA CORP
1 patentLIN WEI-YI
1 patentCHANG CHIA-YUAN
1 patentCORETRONIC CORP
1 patentShowing the top 50 of 55 patents by PatentIndex Score.