US Patent Issued to International Business Machines on Feb. 3 for "Reducing the time to switch between the redundant clock signals applied to a phase lock loop" (Minnesota Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,547, issued on Feb. 3, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Reducing the time to switch between the redundant clock signals applied to a phase lock loop" was invented by John Borkenhagen (Rochester, Minn.) and Christopher Steffen (Rochester, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit for reducing a time to switch between the redundant clock signals applied to a phase lock loop. The circuit includes a phase frequency detector of the phase lock loop that detects a shift in the phase of a reference clock signal relative to the phase of a feedback clock signal. The circuit further includes a coarse tu...