Inventor
LI CHANGCHUN
US25 patents
⚠️ This page may combine multiple inventors who share the name “LI CHANGCHUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SENSORMATIC ELECTRONICS LLC
6 patentsUS11250644B2Feb 15, 2022
Method and system for queue length analysis
SENSORMATIC ELECTRONICS LLC2 citations71
US10235599B2Mar 19, 2019
Method and system to characterize video background changes as abandoned or removed objects
SENSORMATIC ELECTRONICS LLC1 citations71
US9965684B2May 8, 2018
Method and system for queue length analysis
SENSORMATIC ELECTRONICS LLC3 citations71
US10445589B2Oct 15, 2019
Method and system for queue length analysis
SENSORMATIC ELECTRONICS LLC0 citations51
US10043105B2Aug 7, 2018
Method and system to characterize video background changes as abandoned or removed objects
SENSORMATIC ELECTRONICS LLC0 citations50
US9237316B2Jan 12, 2016
Method and system to characterize video background changes as abandoned or removed objects
SENSORMATIC ELECTRONICS LLC0 citations50
SHENZHEN BAOWU TECH CO LTD
4 patentsLOCUS ROBOTICS CORP
4 patentsUS12162141B2Dec 10, 2024
Robot charging dock with illuminated charge connector
LOCUS ROBOTICS CORP0 citations56
US12461213B2Nov 4, 2025
Calibration of a lidar sensor
LOCUS ROBOTICS CORP0 citations51
US11405557B1Aug 2, 2022
Rolling shutter compensation for moving digital optical camera sensors
LOCUS ROBOTICS CORP0 citations51
US12372967B2Jul 29, 2025
Visual robot pose estimation
LOCUS ROBOTICS CORP0 citations41
LI CHANGCHUN
3 patentsFORD GLOBAL TECH LLC
2 patentsHUAWEI TECH CO LTD
2 patentsUS6728436B2Apr 27, 2004
Optical signal modulation method and optical signal transmission system for high speed transmission system
HUAWEI TECH CO LTD3 citations62
US6833948B2Dec 21, 2004
Method for implementing power equalization of dense wavelength division multiplexing system
HUAWEI TECH CO LTD1 citations52