Lee; Ching-Ran
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lee; Ching-Ran.The latest application filed is for "dimming system and operating method thereof".
- Lee; Ching-Ran - Kinmen County TW
- Lee; Ching-Ran - Jinning Township Kinmen County TW
- Lee; Ching-Ran - Jinning Township, Kinmen County N/A TW
- Lee; Ching-Ran - Jinming Township Kinmen County TW
- Lee; Ching-Ran - Hsinchu TW
- Lee; Ching-Ran - Chu-Tung TW
| Patent | Date |
|---|---|
| LED driving circuit and method Grant 10,986,715 - Lee , et al. April 20, 2 | 2021-04-20 |
| Dimming system and operating method thereof Grant 9,549,444 - Lee , et al. January 17, 2 | 2017-01-17 |
| Passive power factor correction circuit, electronic device applying the same and operation methods thereof Grant 9,343,956 - Tsai , et al. May 17, 2 | 2016-05-17 |
| Dimming System And Operating Method Thereof App 20160050735 - Lee; Ching-Ran ; et al. | 2016-02-18 |
| Direct current conversion circuit Grant 9,257,904 - Tsai , et al. February 9, 2 | 2016-02-09 |
| DC conversion circuit Grant 9,190,904 - Tsai , et al. November 17, 2 | 2015-11-17 |
| Active buck power factor correction device Grant 9,048,750 - Tsai , et al. June 2, 2 | 2015-06-02 |
| Lamp control system, lamp power-saving system and method therefor Grant 9,041,293 - Chen , et al. May 26, 2 | 2015-05-26 |
| Lighting control systems and methods Grant 8,952,626 - Huang , et al. February 10, 2 | 2015-02-10 |
| Buck power factor correction system Grant 8,901,900 - Tsai , et al. December 2, 2 | 2014-12-02 |
| Method for identifying rated power of HID lamp Grant 8,878,459 - Tsai , et al. November 4, 2 | 2014-11-04 |
| Light source driving device including a switching current adjustment circuit Grant 8,749,165 - Chen , et al. June 10, 2 | 2014-06-10 |
| Direct Current Conversion Circuit App 20140139128 - Tsai; Wen-Tien ; et al. | 2014-05-22 |
| DC Conversion Circuit App 20140132231 - TSAI; Wen-Tien ; et al. | 2014-05-15 |
| Passive Power Factor Correction Circuit, Electronic Device Applying The Same And Operation Methods Thereof App 20140056046 - TSAI; Wen-Tien ; et al. | 2014-02-27 |
| Solar-powered wireless communication module with daylight intensity measurement Grant 8,653,428 - Chen , et al. February 18, 2 | 2014-02-18 |
| Active Buck Power Factor Correction Device App 20130169242 - TSAI; WEN-TIEN ; et al. | 2013-07-04 |
| Lamp Control System, Lamp Power-saving System And Method Therefor App 20130162143 - Chen; Sui-Tsung ; et al. | 2013-06-27 |
| Buck Power Factor Correction System App 20130082666 - TSAI; Wen-Tien ; et al. | 2013-04-04 |
| Method For Identifying Rated Power Of Hid Lamp App 20130049638 - Tsai; Wen-Tien ; et al. | 2013-02-28 |
| Lighting Control Systems and Methods App 20130043797 - Huang; Yao-Te ; et al. | 2013-02-21 |
| Light Source Driving Device App 20120299507 - Chen; Yung-Chuan ; et al. | 2012-11-29 |
| LED mixture control device and controlling method thereof Grant 8,278,847 - Chen , et al. October 2, 2 | 2012-10-02 |
| Constant power control apparatus and control method thereof Grant 8,242,757 - Huang , et al. August 14, 2 | 2012-08-14 |
| Method of controlling a ballast for a high intensity discharge lamp and related system Grant 8,148,920 - Lee , et al. April 3, 2 | 2012-04-03 |
| LED Mixture Control Device and Controlling Method Thereof App 20110121762 - Chen; Po-Yen ; et al. | 2011-05-26 |
| Constant Power Control Apparatus And Control Method Thereof App 20100277139 - Huang; Yao-Te ; et al. | 2010-11-04 |
| Solar-powered Wireless Communication Module With Daylight Intensity Measurement App 20100127155 - Chen; Po-Yen ; et al. | 2010-05-27 |
| Method Of Controlling A Ballast For A High Intensity Discharge Lamp And Related System App 20100060201 - LEE; Li-Ling ; et al. | 2010-03-11 |
| Preheat control device for modulating voltage of gas-discharge lamp Grant 7,557,522 - Ku , et al. July 7, 2 | 2009-07-07 |
| Single-stage electronic ballast device Grant 7,545,102 - Lee , et al. June 9, 2 | 2009-06-09 |
| Preheat Control Device For Modulating Voltage Of Gas-discharge Lamp App 20080136354 - Ku; Chung-Ping ; et al. | 2008-06-12 |
| Single-stage electronic ballast device App 20080018265 - Lee; Ching-Ran ; et al. | 2008-01-24 |
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