ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,801, issued on Dec. 30, was assigned to GIGADEVICE SEMICONDUCTOR INC. (Beijing).
"Squelch detector" was invented by Dequan Hou (Beijing) and Sanlin Liu (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A squelch detector is disclosed by the present application. By configuring the first to third bias current sources and a mirror ratio of the current mirror circuit, when an amplitude difference between first and second input signals is smaller or greater than a squelch threshold, flip of an output node in the squelch detector depends only on the squelch threshold and is independent of variations of process, voltage and temperature (PVT) paramete...