US Patent Issued to Cisco Technology on Aug. 5 for "Waveguide delay based equalization with current summing in a differential transimpedance amplifier" (California Inventors)

ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,632, issued on Aug. 5, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Waveguide delay based equalization with current summing in a differential transimpedance amplifier" was invented by Simon S. Pang (San Diego) and Wei Li (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A waveguide delay-based equalization (WDEQ) system is described. The WDEQ system provides a delay in waveguides of the system and electrical signal summing in a differential transimpedance amplifier (TIA) which increases the performance (e.g., bandwidth, etc.) of the optical receiver. The WDEQ system includes an optoelectronic circuit with a directional coupler, ...