Inventor
Yen-John Chen
Inventor
Taoyuan, TW
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Sprimary
G01SRadio direction-finding14%
G06FElectric digital data processing14%
A63FCard, board, or roulette games7%
G01CMeasuring distances, levels or bearings7%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock7%
G02BOptical elements, systems or apparatus7%
G06TImage data processing or generation, in general7%
G06VImage or video recognition or understanding7%
H02HEmergency protective circuit arrangements7%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%
PatentTitleYear
10,942,252Tracking system and tracking method202110,943,358Object tracking system and object tracking method202110,895,628Tracking system, tracking device and tracking method20216,956,726'Power protection device'20056,933,699'Motor drive circuit and method with frequency setting and correcting functions'20056,737,860'System for controlling rotational speed of fan according to reference clock frequency'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2005Patents assigned to PROLIFIC TECHNOLOGY INC (3)· patent assignee history
2004–2005Based in Changhua County, TW· patent location history
2021Patents assigned to HTC CORP (3)· patent assignee history
2021Based in Taoyuan, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HTC CORP | 3 | 2021 |
| PROLIFIC TECHNOLOGY INC | 3 | 2004–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Taoyuan, TW | 3 | 2021 |
| Changhua County, TW | 3 | 2004–2005 |