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:
Feb. 04, 2025
Filed:
Aug. 17, 2021
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Kengo Umeda, Tokyo, JP;
Youhei Oosako, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
Solid-state imaging devices are disclosed. In one example, a solid-state imaging device includes an AD converter that obtains an electric signal from a pixel and performs AD conversion on the electric signal. The electric signal is compared with a reference signal that has a voltage changing with the lapse of time. The reference signal is generated by a reference signal generator with a first current circuit that causes a first current to flow, an output circuit including a first input unit connected to the first current circuit, a second input unit that receives a reference voltage for determining an initial value of the reference signal, and an output unit that outputs the reference signal on the basis of voltages of the first input unit and the second input unit. A first capacitive element changes the reference signal by accumulating or discharging the first current.