The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2006
Filed:
Sep. 14, 2005
Shih-chung Huang, Taipei, TW;
Chien-cheng Yang, Taoyuan, TW;
Tim Yu, Banciao, TW;
Beyond Innovation Technology Co., Ltd., Taipei, TW;
Abstract
A frequency synchronization device for a large LCD having a plurality of lamps as a background light source is disclosed. The device comprises a power amplification unit wherein one power amplification unit is electrically coupled to another amplification unit, each power amplification unit being electrically coupled to one or more of the lamps, adapted to generate a driving signal, and adapted to send the driving signal to the coupled lamp(s) for causing the lamps to operate at the same frequency; a plurality of current sampling elements each electrically coupled to one or more of the lamps for sampling current thereof; and control means comprising a control element and a diode, the control means being electrically coupled to current sampling elements so as to stabilize the current of the lamps. The connection and circuitry of the device are much simplified and improved.