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:
Jan. 28, 1986
Filed:
Sep. 26, 1983
Kuniyoshi Konishi, Tokyo, JP;
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
A light-receiving device including a photo-detector, for issuing a current signal corresponding to a received light signal, preamplifier, variable attenuating circuit and main amplifier. The preamplifier acts as a current amplifier for amplifying an output current signal from the photo-detector. The variable attenuating circuit acts as a current attenuating circuit for attenuating an output current signal from the preamplifier. The main amplifier amplifies an output current from the variable attenuating circuit and issues an amplified voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile