ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,220, issued on Nov. 25, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).

"High resolution attenuator or phase shifter with weighted bits" was invented by Vikas Sharma (Reading, Great Britain) and Peter Bacon (Derry, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Digital step attenuator (DSA) and digital phase shifter (DPS) multi-stage circuit architectures that provide for high resolution. Embodiments use a dithering approach to weight bit positions to provide a much finer resolution than the lowest-valued individual stage. Bit position weights for stages are determined so as to enable selection of combinations of n bit positi...