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:
Dec. 29, 2009
Filed:
Feb. 07, 2005
Tomoko Konda, Tokyo, JP;
Kenichi Fujie, Tokyo, JP;
Yoshiyuki Fujii, Tokyo, JP;
Hisashi Ishikura, Tokyo, JP;
Takayuki Yamamoto, Tokyo, JP;
Tomoko Konda, Tokyo, JP;
Kenichi Fujie, Tokyo, JP;
Yoshiyuki Fujii, Tokyo, JP;
Hisashi Ishikura, Tokyo, JP;
Takayuki Yamamoto, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An imaging apparatus of a wide dynamic range can be achieved at low cost while making improvement in contrast and the maintenance or reduction of a circuit size compatible with each other. The apparatus includes a photoelectric conversion part that converts a signal from a light receiving element into a voltage in accordance with an amount of incident light, an analog signal processing part that processes an analog video signal output from the photoelectric conversion part, an A/D conversion part that converts the analog video signal into a digital video signal, and a high frequency emphasis part that emphasizes a high frequency component of the video signal. The high frequency emphasis part suppresses a low frequency component of brightness in the video signal to emphasize the high frequency component, whereby image data of good contrast can be obtained while keeping a dynamic range of the signal.