US Patent Issued to Cadence Design Systems on Sept. 8 for "Loopback test for phase interpolator codes" (North Carolina, Maryland Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,730,150, issued on Sept. 8, was assigned to Cadence Design Systems Inc. (San Jose, Calif.).

"Loopback test for phase interpolator codes" was invented by Mark A. Summers (Cary, N.C.), Benjamin L. Heilmann (Southport, N.C.) and Satya Someswara Kaushik Yanamandra (Gaithersburg, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Loopback testing of a phase interpolator (PI) in a serial link system. A CDR loop operates in a loopback mode until a sampling clock signal locks to a first valid lock point in a first UI. The CDR loop includes the PI and a phase blender for blending weights of multiple clock signals, phase offset from each other, to apply a blender...