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:
Nov. 22, 2016
Filed:
Sep. 27, 2012
Masaki Noda, Chiyoda-ku, JP;
Masaki Noda, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Abstract
A photodiode () of a receiver () outputs a current signal having a value that corresponds to the optical power of a received optical signal. A transimpedance amplifier () amplifies the current signal output from the photodiode (), converts the current signal to a voltage signal, and further outputs the voltage signal that is converted from the current signal. A current detection circuit () generates a current having a value larger than that of the current signal output from the photodiode (). A feedback resistor () changes a gain of the transimpedance amplifier () based on magnitude of the current generated by the current detection circuit ().