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:
Feb. 11, 2014
Filed:
May. 30, 2012
Soren Gehrke, Nuremberg, DE;
Theodor Kupfer, Feucht, DE;
James Whiteaway, Sawbridgeworth, GB;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A system configured to maintain a consistent local-oscillator-power-to-primary-signal-power ratio (LO/SIG ratio). The system may be configured to: receive the voltages for a plurality of optical signal components split from a combined SIG and LO signal; determine individual factors for the plurality of optical signal components; average the individual factors; determine whether the averaged output is less than a minimum reference value for a variable optical attenuator; determine whether the averaged output is greater than a maximum reference value for the variable optical attenuator; change a value associated with the averaged output to the minimum reference value, due to determining that the averaged output is less than the minimum reference value; change a value associated with the averaged output to the maximum reference value, due to determining that the averaged output is greater than the maximum reference value; and change a new value associated with the averaged output to be transmitted to the variable optical attenuator.