Inventor
Changchun Li
Inventor
Concord, MA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Tprimary
G06TImage data processing or generation, in general21%
G06KGraphical data reading17%
G06VImage or video recognition or understanding17%
G06FElectric digital data processing14%
H04NPictorial communication, e.g. television10%
G07FCoin-freed or like apparatus7%
H04BTransmission7%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes3%
H04JMultiplex communication3%
PatentTitleYear
11,055,708Resource deduction method and apparatus, intelligent terminal, and deduction server202110,466,877Method and device for selecting entity in drawing201910,445,589Method and system for queue length analysis201910,235,599Method and system to characterize video background changes as abandoned or removed objects201910,043,105Method and system to characterize video background changes as abandoned or removed objects20189,965,684Method and system for queue length analysis20189,237,316'Method and system to characterize video background changes as abandoned or removed objects'20166,833,948'Method for implementing power equalization of dense wavelength division multiplexing system'20046,728,436'Optical signal modulation method and optical signal transmission system for high speed transmission system'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004Patents assigned to HUAWEI TECH CO LTD (2)· patent assignee history
2004–2021Based in Shenzhen, CN· patent location history
2016–2019Patents assigned to SENSORMATIC ELECTRONICS LLC (5)· patent assignee history
2016–2019Based in Concord, MA, US· patent location history
2019Patents assigned to SUZHOU GSTARSOFT CO LTD (1)· patent assignee history
2019Based in Jiangsu, CN· patent location history
2021Patents assigned to TENCENT TECH SHENZHEN CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SENSORMATIC ELECTRONICS LLC | 5 | 2016–2019 |
| HUAWEI TECH CO LTD | 2 | 2004 |
| SUZHOU GSTARSOFT CO LTD | 1 | 2019 |
| TENCENT TECH SHENZHEN CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Concord, Massachusetts, US | 5 | 2016–2019 |
| Shenzhen, CN | 3 | 2004–2021 |
| Jiangsu, CN | 1 | 2019 |