ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,732, issued on March 31, was assigned to ORCA Computing Ltd. (London).
"Field programmable optical filter" was invented by Farzad Mokhtari-Koushyar (Austin, Texas), Thien-An Nguyen (Austin, Texas) and Che-Chun Lin (Austin, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A programmable filter for electronic signals. The filter includes an input that splits power of the input signal along two paths, a first and second path that is phase shifted by ninety degrees in respect of the first path. The first and second path are each modulated to the optical domain, and provided as input to respective filter chains. The in-phase signal can be filtered b...