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. 08, 2018
Filed:
Mar. 03, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Hirofumi Totsuka, Fujisawa, JP;
Daisuke Yoshida, Ebina, JP;
Yasushi Matsuno, Fujisawa, JP;
Takashi Muto, Kawasaki, JP;
Toru Koizumi, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A photoelectric conversion apparatus includes a pixel. The pixel includes a transfer transistor, a reset transistor, an amplification transistor, and a selection transistor. The photoelectric conversion apparatus includes a control line, a voltage control unit, and a current source. The control line is electrically connected to a source of the amplification transistor. The voltage control unit controls the voltage of the control line. The current source outputs a reference current. A path of a current from the amplification transistor is separated from a path of the reference current. The photoelectric conversion apparatus includes a comparison unit configured to compare the current from the amplification transistor with the reference current. During a period in which a transistor connected to the gate of the amplification transistor is in a conductive state, the selection transistor is in a non-conductive state.