ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,407,312, issued on Sept. 2, was assigned to Silergy Semiconductor Technology (Hangzhou) LTD (Hangzhou, China).
"Sample-and-hold amplifier" was invented by Lin Song (Hangzhou, China) and Guangyang Qu (Hangzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sample-and-hold amplifier can include: an operational amplifier; a sampling capacitor having a first terminal coupled to an inverting input terminal of the operational amplifier, and a second terminal coupled to a reference ground; and a switching circuit configured to switch feedback paths of the sample-and-hold amplifier in a first stage and a second stage, such that an offset voltage of the...