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. 18, 2023
Filed:
Dec. 23, 2021
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Inventor:
Katsuyuki Ikeuchi, Yokohama Kanagawa, JP;
Assignees:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/305 (2020.01); H05B 45/10 (2020.01); H05B 45/30 (2020.01); H04L 7/00 (2006.01); H03M 3/00 (2006.01); F21Y 115/10 (2016.01);
U.S. Cl.
CPC ...
H05B 45/305 (2020.01); H03M 3/464 (2013.01); H04L 7/0037 (2013.01); H05B 45/10 (2020.01); H05B 45/30 (2020.01); F21Y 2115/10 (2016.08);
Abstract
LED drive control circuitry according to one embodiment outputs an LED drive control signal serving as driving a light emitting diode included in a photocoupler that performs insulation communication in synchronization with a reference clock signal. The LED drive control circuit includes a duty cycle changer that changes a duty cycle of the LED drive control signal in accordance with the reference clock signal and a signal synchronized with the reference clock signal.