ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,204, issued on Feb. 17.
"Active multiplexer" was invented by Nimrod Rospsha (Rishon Lezion, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A radiofrequency (RF) system may comprise a duplexer or multiplexer, e.g., when the transmitted signal frequency is different from the receiving frequency in a RF communication system, a duplexer may combine the transmitter and the receiver into the same antenna. In other possible RF communication systems, where the transmit (Tx) and receive (Rx) paths utilize the same frequencies (which are duplexed in time domain), a multiplexer may be used to connect different transmitters, receivers and/or transceivers...