ALEXANDRIA, Va., July 16 -- United States Patent no. 12,360,634, issued on July 15, was assigned to Cypress Semiconductor Corp. (San Jose, Calif.).
"Signal processing unit of capacitive touch sensing channel" was invented by Roman Ogirko (Lviv, Ukraine) and Syed Tabish Alam (Cork, Ireland).
According to the abstract* released by the U.S. Patent & Trademark Office: "An integrated circuit includes a sigma-delta modulator (SDM) coupled to a receive electrode, which is selectively coupled to multiple unit cell sensors. A demodulator is coupled directly to the SDM, the demodulator to generate a multibit digital signal by demodulating a digital pulse density modulated (PDM) signal received from the SDM. The demodulating can include multiplying ...