Inventor
Tsung-Hau Chang
Inventor
Hsinchu, TW
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Bprimary
H05BElectric heating58%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications15%
G05FSystems for regulating electric or magnetic variables8%
H03KPulse technique8%
G06FElectric digital data processing4%
H03FAmplifiers4%
H03MCoding4%
PatentTitleYear
RE046330'Driving apparatus of light emitting diode and driving method thereof'20179,119,249'LED device, LED driving circuit and method'20158,994,277'LED device, LED driving circuit and method'20158,922,055'Driving circuit and method for driving current-driven devices and electronic device applying the same'20148,786,271'Circuit and method for generating reference voltage and reference current'20148,610,360'LED device and method for preventing soft-start flicker'20138,502,472'Light emitting diode driving apparatus and method for holding driving voltage thereof'20138,471,603'Current driver, electronic device and current driving method'20138,461,883'Frequency generator'20138,427,081'Driving apparatus of light emitting diode and driving method thereof'20138,344,661'LED device with simultaneous open and short detection function and method thereof'20138,288,969'Driving apparatus of light emitting diode and driving method thereof'20128,237,369'Light source apparatus and driving circuit thereof'20128,169,156'Control method capable of preventing flicker effect and light emitting device thereof'20128,154,223'Driving apparatus of light emitting diode and driving method thereof'20128,134,304'Light source driving device capable of dynamically keeping constant current sink and related method'20128,030,904'Oscillator circuit'20117,936,090'Driving circuit and method for driving current-driven devices'20117,652,534'Rail-to-rail operational amplifier capable of reducing current consumption'20107,626,528'Digital to analog converter with high driving capability'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2017Patents assigned to NOVATEK MICROELECTRONICS CORP (20)· patent assignee history
2009–2014Based in Tainan, TW· patent location history
2010–2017Based in Hsinchu, TW· patent location history
2012–2015Patents assigned to CHANG TSUNG-HAU (14)· patent assignee history
2012–2013Patents assigned to HSU CHIN-HSUN (8)· patent assignee history
2012–2013Patents assigned to HSU KUO-CHING (8)· patent assignee history
2012–2013Patents assigned to LIAO TING-WEI (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NOVATEK MICROELECTRONICS CORP | 20 | 2009–2017 |
| CHANG TSUNG-HAUself | 14 | 2012–2015 |
| HSU CHIN-HSUN | 8 | 2012–2013 |
| HSU KUO-CHING | 8 | 2012–2013 |
| LIAO TING-WEI | 5 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 18 | 2010–2017 |
| Tainan, TW | 2 | 2009–2014 |