ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,386, issued on Nov. 18, was assigned to Nicholas Weiner (Great Britain).

"Impedance measurement" was invented by Nicholas Weiner (Bristol, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Circuitry for characterising a test impedance of a test load, the test load coupled between a sense node and a first driver node, the circuitry comprising: driver circuitry configured to apply a time-varying test stimulus between the first driver node and a second driver node, the test stimulus varied in step changes at a one or more of signal events; a reference load coupled between the second driver node and the sense node, the reference load having a...