ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,732,284, issued on Sept. 8, was assigned to Southwest Research Institute (San Antonio).
"Low-amplitude high-precision ultrasonic pulser" was invented by Nathan Richter (San Antonio) and Jay Fisher (Alamo Heights, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pulser/receiver for generating and receiving ultrasonic pulses in the form of chirps, for use by an ultrasonic transducer. The pulser has a transmit path having a direct digital synthesizer operable to generate a chirp signal; a converter operable to convert the chirp signal to a transmit signal having a single ended voltage, a voltage amplifier and a power amplifier. Switches deliver the t...