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:
Oct. 14, 2014
Filed:
Aug. 03, 2012
Tetsuaki Kato, Saitama, JP;
Tetsuaki Kato, Saitama, JP;
Pentax Ricoh Imaging Company, Ltd., Tokyo, JP;
Abstract
A camera a has an image sensor; an exposure controller that conducts a main exposure and a dark exposure, in order, when a long-exposure shooting is carried out; an image signal processor that processes image-pixel signals that are generated by the main exposure and are read from the image sensor; and a noise reduction processor that reduces dark current components in the image-pixel signals on the basis of dark current components in the dark exposure. The exposure controller operates the image sensor for heating between the main exposure and the dark exposure.
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