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. 25, 2006
Filed:
Mar. 23, 2005
Yasuo Onishi, Kyoto, JP;
Yasuo Onishi, Kyoto, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
Disclosed is a projection type video display apparatus comprising input means for inputting a power saving mode setting command, average luminance level detection means for detecting the average luminance level of an input video signal, PWM generation means for usually generating a first PWM signal having a duty ratio corresponding to the average luminance level detected by the average luminance level detection means in a predetermined duty ratio range, while generating, when the power saving mode setting command is inputted by the input means, a second PWM signal having a duty ratio outside the predetermined duty ratio range, and lamp control means receiving the PWM signals generated by the PWM generation means for controlling the illuminance of the light source lamp on the basis of the duty ratio of the inputted PWM signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile