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. 03, 2021
Filed:
Feb. 19, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Takashi Fukuhara, Higashikurume, JP;
Takanori Yamashita, Hachioji, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is a photoelectric conversion device including: a pixel configured to generate a first signal in accordance with an incident light by photoelectric conversion; an amplifier unit configured to amplify the first signal to output a second signal; and a comparator unit configured to compare a voltage of the second signal with a voltage of a reference signal. A slope of the ramp waveform included in the reference signal can be switched between a first slope α and a second slope β, the reference voltage used for determining a setting of a gain in the amplifier unit or the comparator unit can be switched between a first reference voltage Vref1 corresponding to the first slope α and a second reference voltage Vref2 corresponding to the second slope β, and α/β≠Vref1/Vref2 is satisfied.