ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,631, issued on Aug. 5, was assigned to Marvell Asia Pte Ltd (Singapore).

"Coherent receiver with polarization diversity clock detection" was invented by Chen Chen (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A receiver includes an optical front-end and digital circuitry. The optical front-end is configured to receive an optical signal including first and second optical signal components having first and second polarizations and modulated with symbols at a symbol rate. The digital circuitry is configured to derive first and second digital signals representing the first and second optical signal components having the first and secon...