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:
Nov. 11, 2008
Filed:
Nov. 04, 2005
Kazuo Nishinosono, Osaka, JP;
Kazuo Nishinosono, Osaka, JP;
Funai Electric Co., Ltd., Osaka, JP;
Abstract
A cold-cathode tube driving circuit for driving a plurality of substantially-C-shaped cold-cathode tubes, includes: a first transformerhaving primary windings which induce voltages, and secondary windings which apply voltages of opposite polarities (−V, +V) to respective ends of the respective substantially-C-shaped cold-cathode tubes; and a second transformerhaving third and fourth primary windings which respectively induce voltages, and third and fourth secondary windings which apply voltages of opposite polarities (−V, +V) to respective ends of the respective substantially-C-shaped cold-cathode tubes. In the cold-cathode tube driving circuit, the first and second transformersapply an in-phase voltage to adjacent ends of the substantially-C-shaped cold-cathode tubes.