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. 08, 2016
Filed:
Feb. 23, 2015
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Tetsu Murayama, Yokohama, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
The integrated optical receiver module includes a plurality of PDs each converting an optical signal to a current signal, and outputs a current signal selected from a plurality of current signals. The RSSI circuit converts the current signal into a voltage signal, outputs a first amplified signal obtained by amplifying the voltage signal by a first gain, and outputs a second amplified signal obtained by amplifying the voltage signal by a second gain larger than the first gain. The MCU outputs a first selection signal to the integrated optical receiver module to acquire intensity of the first amplified signal with respect to all of the current signals in a predetermined order, outputs a second selection signal to the integrated optical receiver module to acquire intensity of the second amplified signal with respect to all of the current signals in the ascending order of the acquired intensity of the first amplified signal, and derives intensity of each of the optical signals from the acquired intensity of the respective second signals.