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. 14, 2026
Filed:
Jun. 14, 2024
Rohm Co., Ltd., Kyoto, JP;
Masahiko Arimura, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A signal transmission device includes a logic in a primary circuit system, a logic and a driver in a secondary circuit system, and a first and a second transformer circuit that transmit driving pulse signals and feedback pulse signals between the logics while isolating between the primary and secondary circuit systems. The second logic has a function of determining the logic level of a gate signal by driving the driver according to the driving pulse signals, a function of pulse-driving the feedback pulse signals at a predetermined period, with a first number of pulses at a time, if the secondary circuit system is in normal condition, and a function of switching the first number of pulses according to the driving capacity of the driver.