ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,169, issued on Nov. 3, was assigned to Renishaw PLC (Wotton-under-Edge, Great Britain).
"Encoder apparatus" was invented by Harrison Clinton Fisher (Wotton-under-Edge, Great Britain) and Iain Robert Gordon-Ingram (Wotton-under-Edge, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A readhead that can read an encoder scale having a series of scale markings arranged in a periodic pattern and embedded scale features that encode absolute position information, including an image sensor for capturing a snapshot image of a portion of the encoder scale and a position analyser for determining a position of the readhead relative to the encoder scal...