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:
Mar. 16, 2010
Filed:
Mar. 09, 2005
Izumi Kanai, Machida, JP;
Izumi Kanai, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention discloses a control apparatus. This control apparatus has a modulation circuit, and a control circuit for setting up an amplitude setting signal and/or a pulse width setting signal to be used in the modulation circuit, on the basis of characteristic data representative of characteristics of an input image signal, the amplitude setting signal and/or the pulse width setting signal being used for setting up an amplitude and/or a time width of a pulse signal to be output from the modulation circuit in accordance with a gradient gradation value of the image signal, wherein the modulation circuit is a circuit which uses the time width setting signal and/or the amplitude setting signal as a reference signal for setting up the time width and amplitude of the pulse signal in correspondence with the gradient.