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:
Jul. 08, 2025
Filed:
Jan. 17, 2022
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
Event detection devices are disclosed. in one example, an event detection device includes a photodiode that generates a photoelectric conversion current, a conversion transistor that converts the photoelectric conversion current into a voltage and outputs the voltage from a gate, an amplification transistor that amplifies a voltage between a gate having a potential according to the photoelectric conversion current and a source having a reference potential and outputs the voltage from a drain, a potential supply unit that supplies a predetermined potential lower than the reference potential to an anode of the photodiode, a back gate of the conversion transistor, and a back gate of the amplification transistor, and a potential controller that controls the predetermined potential based on a temperature affectable to a threshold voltage of at least one of the conversion transistor or the amplification transistor.