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. 06, 2012
Filed:
Dec. 16, 2005
Tomoko Konda, Tokyo, JP;
Yoshiyuki Fujii, Tokyo, JP;
Tomoko Konda, Tokyo, JP;
Yoshiyuki Fujii, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An image processing apparatus includes a QV converter that converts an electric charge accumulated in an effective pixel portion into an analog video signal and also converts an electric charge of a shaded pixel portion into an analog shaded signal, a signal processing section that processes output signals of the QV converter, a black level setting section that sets a black level from a black level target value, an A/D conversion section that A/D converts an analog output signal of the signal processing section after correction thereof by the black level, a CPU that processes a digital output signal D from the A/D conversion section, a noise determination section that determines a noise level from the digital output signal, a brightness measuring section that measures brightness information of a predetermined region, and a target value setting section that sets the black level target value based on the noise level and the brightness information.