ALEXANDRIA, Va., June 19 -- United States Patent no. 12,334,947, issued on June 17, was assigned to HITACHI ASTEMO LTD. (Hitachinaka, Japan).
"Signal processing device and control method for signal processing device" was invented by Nagamori Hiraki (Hitachinaka, Japan) and Tomonobu Koseki (Hitachinaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing device and a control method therefor comprise: a filter circuit including a first capacitor and reducing a predetermined frequency component of an analog signal; a sample-and-hold circuit including a second capacitor and sampling and holding the analog signal that has passed through the filter circuit; and an AD conversion circuit convert...