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:
Oct. 26, 1993
Filed:
Sep. 17, 1992
Hironobu Miyasaka, Kitakyusyu, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A signal transmission circuit having a latch-up function has a first and a second photo-couplers, each of which has a photo-diode (light emitting diode) and a photo-transistor. The photo-diode in the first photo-coupler is series-connected with the photo-transistor in the second photo-coupler between high and low voltage supplies. The other photo-diode and photo-transistor in said first and second photo-couplers are connected in the same way. As a result, signals are transmitted between those two photo-couplers with a high noise resistance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile