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. 19, 2019
Filed:
Dec. 14, 2017
Shahab Oveis Gharan, Ottawa, CA;
Mohammad Ehsan Seifi, Ottawa, CA;
Masoud Ebrahimi Tazeh Mahalleh, Ottawa, CA;
Kim B. Roberts, Ottawa, CA;
Shahab Oveis Gharan, Ottawa, CA;
Mohammad Ehsan Seifi, Ottawa, CA;
Masoud Ebrahimi Tazeh Mahalleh, Ottawa, CA;
Kim B. Roberts, Ottawa, CA;
CIENA CORPORATION, Hanover, MD (US);
Abstract
Client data bits, including first client data bits and second client data bits, are communicated from a transmitter to a receiver. At the transmitter, the first client data bits are processed to generate processed values, where each processed value is more likely to be a first element than a second element. Forward Error Correction 'FEC' encoding is applied to the second client data bits to generate FEC-encoded values. Symbols are created by mapping the FEC-encoded values to first positions in the symbols and by mapping the processed values to second positions in the symbols. The symbols are modulated onto a communications channel using a modulation scheme with a code that assigns a lower average energy to symbols containing the first elements in the second positions than to symbols containing the second elements in the second positions. At the receiver, client data bits are decoded using conditional chain decoding.