US Patent Issued to International Business Machines on Oct. 14 for "Digital phase change memory (PCM) array for analog computing" (New York Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,444,447, issued on Oct. 14, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Digital phase change memory (PCM) array for analog computing" was invented by Tian Shen (Clifton Park, N.Y.), Kevin W. Brew (Niskayuna, N.Y.) and Heng Wu (Guilderland, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A plurality of bit lines corresponding to elements of an input vector intersect a plurality of word lines and a plurality of memristive cells are located at the intersections. At least three cells are grouped together to represent a single matrix element. At least three word lines correspond to each element of an output vector. An A/D conve...