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:
May. 03, 2016
Filed:
Aug. 23, 2013
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Takashi Ichimiya, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/232 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01);
Abstract
A focus detection apparatus comprises a pair of line sensors that generate a pair of image signals by photo-electrically converting an object image, calculation unit configured to calculate a defocus amount using the image signals, and control unit configured to control the line sensors to execute a charge accumulation operation until output levels of the line sensors reach a first voltage level based on a saturated voltage, wherein the control unit switches the saturated voltage based on luminance information.