ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,613, issued on June 30.
"Preamble detection for wireless power ask communication" was invented by Giovanni Amedeo Cirillo (Turin, Italy), Gianluca De Piano (Serino, Italy) and Alessandro Alaimo (Vecchiano, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to an embodiment, a preamble detection circuit includes a slicer that normalizes a demodulated Amplitude Shift Keying (ASK) signal to generate a binary waveform, a correlator that performs correlation with a reference preamble sequence, and decision logic that determines if a valid preamble is detected. The circuit enables a primary demodulation chain to remain in a low-power state unt...