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:
Aug. 23, 2016
Filed:
Sep. 24, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Kazuki Konishi, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an image capturing apparatus comprising an image sensor has focus detection pixels and image forming pixels, a calculation unit calculates first and second charge accumulation periods, a control unit reads out an image forming signal from the image forming pixels accumulated for the first charge accumulation period and a focus detection signal from the focus detection pixels accumulated for the second charge accumulation period, a display unit displays the image forming signal, and a focus control unit performs phase difference focus control process based on the focus detection signal. When the second charge accumulation period is longer than the first charge accumulation period, the control unit reads out the focus detection signal and the image forming signal in parallel, and sets a readout rate of the focus detection signal to be lower than that of the image forming signal.