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:
Jul. 05, 2011
Filed:
Mar. 13, 2009
Akio Nishida, Kyoto, JP;
Shigeru Arai, Sakai, JP;
Akio Nishida, Kyoto, JP;
Shigeru Arai, Sakai, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A discharge tube lighting apparatus includes a converter that converts a voltage received from an alternating-current or direct-current power supply into a predetermined direct-current voltage and an inverter that converts an output voltage of the converter into an alternating-current voltage having a predetermined frequency. The inverter performs burst control based on an externally input dimming signal. The converter operates regardless of the active or inactive period of the burst control of the inverter and performs negative feedback control in response to a detection signal of a tube current in the active period of the inverter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile