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. 28, 2006
Filed:
Jun. 12, 2003
Tadashi Aoki, Kanagawa, JP;
Aoji Isono, Kanagawa, JP;
Kazuhiko Murayama, Kanagawa, JP;
Kenji Shino, Kanagawa, JP;
Yasuhiko Sano, Kanagawa, JP;
Tadashi Aoki, Kanagawa, JP;
Aoji Isono, Kanagawa, JP;
Kazuhiko Murayama, Kanagawa, JP;
Kenji Shino, Kanagawa, JP;
Yasuhiko Sano, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A modulator includes a modulation circuit for generating modulation signals based on inputted luminance data and for outputting the modulation signals to a plurality of image display elements, each of which is driven by a potential difference between a selection potential applied within a predetermined time period by a selection circuit and the modulation signal. The modulation signal has a waveform which is a combination of a plurality of unit pulses, with the unit pulses having an identical width and n kinds of peak values A1 to An, with n being an integer greater than 1, and A1<. . . <An. Additionally, the unit pulses are combined in such a way that maximal peak value portions of the waveform of the modulation signal are dispersed, and that a rising portion and a falling portion of the waveform have a stair-step-like shape.