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:
May. 04, 2010
Filed:
Jul. 05, 2005
Satoshi Ikeda, Osaka, JP;
Yoshinori Yamada, Osaka, JP;
Katsumi Adachi, Nara, JP;
Mikihiko Nishitani, Nara, JP;
Masashi Goto, Osaka, JP;
Satoshi Ikeda, Osaka, JP;
Yoshinori Yamada, Osaka, JP;
Katsumi Adachi, Nara, JP;
Mikihiko Nishitani, Nara, JP;
Masashi Goto, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A lighting rate is calculated from a video signal input in a plasma display device, and an output current of DC-DC converter, which is the same as a discharge current in a sustain period corresponding to the lighting rate, is synchronized with a generation timing of discharge current. With such a configuration, even if discharge current in the sustain period of each subfield is rapidly changed, a sustain pulse voltage can be kept constant.