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. 25, 2016
Filed:
Jun. 28, 2013
Futurewei Technologies, Inc., Plano, TX (US);
Futurewei Technologies, Inc., Plano, TX (US);
Abstract
An apparatus comprising a receiver optical subassembly (ROSA) configured to receive an optical signal, wherein the ROSA comprises an optical-electrical (O/E) converter configured to convert the optical signal into an electrical signal, and a processor coupled to the ROSA and configured to calibrate an O/E converter bias, wherein calibrating the O/E converter bias comprises reading an initial O/E converter dark current measurement, adjusting the O/E converter bias with a voltage step, reading an adjusted O/E converter dark current measurement after the voltage step adjustment, and monitoring an O/E converter dark current change rate by subtracting the initial O/E converter dark current measurement from the adjusted O/E converter dark current measurement.