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:
Sep. 24, 2013
Filed:
Dec. 25, 2008
Kazuo Okawa, Matsumoto, JP;
Kazuo Okawa, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Provided is an electric discharge lamp lighting device () including a control section () which performs first control operation for controlling at least the current value, frequency, duty ratio or waveform of a driving current (I) for driving an electric discharge lamp (). The electric discharge lamp lighting device also includes a signal receiving section () for receiving a drive control signal (S) which can control at least the current value, frequency, duty ratio or waveform of the driving current (I) in mode different from the first control operation. The control section () performs second control operation for controlling at least the current value, frequency duty ratio or waveform of the driving current (I) based on the drive control signal (S), in the case where the signal receiving section () has received the drive control signal (S).