US Patent Issued to Intel on Oct. 20 for "Photonic system with marker tone" (California, Oregon Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,455, issued on Oct. 20, was assigned to Intel Corp. (Santa Clara, Calif.).

"Photonic system with marker tone" was invented by Duanni Huang (San Jose, Calif.), Xinru Wu (San Jose, Calif.), Taehwan Kim (Portland, Ore.), Ganesh Balamurugan (Hillsboro, Ore.) and Haisheng Rong (Pleasanton, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments herein relate to an optical system coupled with or including a control logic. The control logic may be configured to identify, based on feedback provided by a photodiode (PD) of an optical receiver, that an amplitude of an optical marker signal output by an interferometer of the optical receiver is above...