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. 18, 2015
Filed:
Jun. 27, 2013
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Norio Negishi, Tokyo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/378 (2011.01); H04N 5/3745 (2011.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); H04N 5/37457 (2013.01);
Abstract
An image sensor in which a plurality of pixels are arrayed in a row direction and a column direction, and an A/D converter is provided on each column of the plurality of pixels. The A/D converter performs one of charge and discharge from an initial value which is a voltage corresponding to an output signal from a pixel, outputs, as a digital value of the output signal, a value corresponding to a time taken for the voltage to become higher or lower than a predetermined reference voltage, and changes one of an amount of charge and an amount of discharge per unit time according to a possible value of the output signal.