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:
Dec. 29, 2015
Filed:
Aug. 24, 2012
Mario Rafael Hueda, Cordoba, AR;
Hugo Santiago Carrer, Mendiolaza, AR;
Diego Ernesto Crivelli, Cordoba, AR;
Oscar Ernesto Agazzi, Irvine, CA (US);
Norman L. Swenson, Mountain View, CA (US);
Mario Rafael Hueda, Cordoba, AR;
Hugo Santiago Carrer, Mendiolaza, AR;
Diego Ernesto Crivelli, Cordoba, AR;
Oscar Ernesto Agazzi, Irvine, CA (US);
Norman L. Swenson, Mountain View, CA (US);
ClariPhy Communications, Inc., Irvine, CA (US);
Abstract
A receiver architecture and method performs timing recovery in the presence of differential group delay (DGD) (caused, for example, by polarization mode dispersion). A matrix-based linear transformation is applied to the polarization components of a signal received over the optical fiber channel that mitigates or eliminates the effects of the differential group delay. Timing recovery can then be performed on the transformed signal to recover a clock signal. Beneficially, the described technique can recover timing information even in half-baud DGD channels. Furthermore, latency and computational load can be minimized.