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:
Mar. 19, 2024
Filed:
May. 11, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Kenzo Tojima, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A photoelectric conversion apparatus includes a plurality of pixels including a photodiode configured to perform avalanche multiplication, and a signal processing circuit configured to generate a signal. The signal processing circuit includes a control circuit, a counter, and an illuminance determination circuit. The control circuit is connected to the photodiode and a generation circuit configured to generate a pulse signal, and controls a state between a first state, and a second state, in accordance with the pulse signal. The counter counts the number of periods in which avalanche multiplication occurs, among a plurality of periods in the first state. The illuminance determination circuit determines whether a count value of the counter has reached a threshold value. The signal processing circuit includes a circuit configured to set a frequency of the pulse signal in accordance with a result of determination performed by the illuminance determination circuit.