ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,069, issued on July 28, was assigned to XILINX INC. (San Jose, Calif.).

"Sparse matrix dense vector multiplication circuitry" was invented by Abhishek Kumar Jain (San Jose, Calif.) and Dinesh Gaitonde (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Circuitry for multiplying a sparse matrix by a dense vector includes a first switching circuit (302) for routing input triplets from N input ports to N output ports based on column indices of the triplets. Each triplet includes a non-zero value, a row index, and a column index. N first memory banks (303) store subsets of vector elements and are addressed by the column indices of the triple...