ALEXANDRIA, Va., March 5 -- United States Patent no. 12,244,354, issued on March 4, was assigned to Lightmatter Inc. (Boston).

"Systems and methods for analog computing using a linear photonic processor" was invented by Darius Bunandar (Boston), Nicholas C. Harris (Menlo Park, Calif.), Michael Gould (La Honda, Calif.), Carl Ramey (Westborough, Mass.) and Tomo Lazovich (Cambridge, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for performing signed matrix operations using a linear photonic processor are provided. The linear photonic processor is formed as an array of first amplitude modulators and second amplitude modulators, the first amplitude modulators configured to encode elemen...