ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,438, issued on June 30, was assigned to Nuvoton Technology Corporation Japan (Kyoto, Japan).
"Analog-to-digital conversion circuit" was invented by Hitoshi Kobayashi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An analog-to-digital conversion circuit includes: a variable gain amplifier; a delta-sigma modulator that modulates an output of the variable gain amplifier to a pulse density modulation (PDM) signal; and a decimation filter that downsamples the PDM signal to output a first digital signal that is converted into a multi-bit digital signal. The decimation filter includes: a weight change unit that converts the PDM signal into a ...