ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,131, issued on Feb. 10, was assigned to Nordic Semiconductor ASA (Trondheim, Norway).
"Switched oscillator circuit" was invented by Cheng-Hsueh Tsai (Trondheim, Norway) and Henrik Fon (Trondheim, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "An oscillator circuit portion 200 including a resonator 216 arranged to oscillate with a resonant frequency, a capacitor 208 arranged to provide charge to the resonator, a first switch 206 arranged to connect the capacitor to an input voltage to charge the capacitor, a second switch 210 arranged to connect the resonator to the capacitor, and a timing circuit 202 configured to generate periodically a firs...