ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,783,922, issued on Nov. 3, was assigned to Northrop Grumman Systems Corp. (Falls Church, Va.).

"Layout for ring oscillator-based Ising machine system" was invented by Kenneth M. Zick (Arlington, Va.) and David George Ferguson (Takoma Park, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "One example includes an Ising machine system. The system includes a plurality of ring oscillators that are each configured to propagate an oscillation signal. Each of the ring oscillators can be cross-coupled with at least one other of the ring oscillators via a respective one of the oscillation signals to provide a respective phase coupling between the respective cros...