ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,306, issued on June 17, was assigned to TOKYO ELECTRON U.S. HOLDINGS INC. (Austin, Texas).

"Apparatus and method for implementing a scalable digital infrastructure for measuring ring oscillators" was invented by Richard Wunderlich (Austin, Texas), Joseph S. Spector (Austin, Texas), Brian Degnan (Enfield, N.H.) and Patrick G. Drennan (Gilbert, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus has a collection of ring oscillators. An instruction register block is configured to sequentially address and activate each ring oscillator in the collection of ring oscillators. A multiplexer with input lines is connected to each ring oscillator...