ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,465, issued on July 1, was assigned to Western Digital Technologies Inc. (San Jose, Calif.).

"Differential sense of embedded contact sensor (ECS) and near-field temperature sensor (NTS) utilizing chopping amplifier" was invented by John T. Contreras (Palo Alto, Calif.), Joey M. Poss (Rochester, Minn.) and Bernhard E. Knigge (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A data storage device comprises a first resistive temperature detector (RTD) and a second RTD coupled to a first voltage source. A tuning bridge coupled between the first and second RTDs and a second voltage source reduces offset between a first bias voltage across t...