ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,613, issued on June 23, was assigned to Allegro MicroSystems LLC (Manchester, N.H.).
"Self-clocking signal protocol" was invented by Ahmad Nour Halawani (Heidelberg, Germany) and Emil Pavlov (Heidelberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A signal encoding and decoding protocol to transmit both clock information and a data payload in a single line is disclosed. Data may be encoded in a unipolar non-return-to-zero line in which an initial pulse width determines a clock frequency, followed by a series of pulses indicating the data payload. Each clock transition following an initial synchronization pulse indicates a data bit in whic...