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. 19, 2022
Filed:
Aug. 17, 2020
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Junichi Todaka, Oita, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;
Abstract
According to an embodiment, the optical receiving circuit includes a current compensation circuit, a photodiode, and a transimpedance circuit. The current compensation circuit generates a first current having a positive temperature coefficient. The photodiode receives an optical signal, generates a first current signal including a photoelectric conversion current having a negative temperature coefficient, and outputs a second current signal which is the sum of the first current and the first current signal. The transimpedance circuit has a negative feedback resistor and receives the second current signal and generates an output voltage by current-voltage-converting the second current signal.