ALEXANDRIA, Va., March 12 -- United States Patent no. 12,250,012, issued on March 11, was assigned to MURATA MANUFACTURING Co. LTD. (Nagaokakyo, Japan).
"Radio-frequency circuit" was invented by Hirotsugu Mori (Nagaokakyo, Japan) and Satoshi Tanaka (Nagaokakyo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A radio-frequency circuit includes a switch and three filters. The switch is connected to an antenna connecting terminal. One filter has a pass band corresponding to a first sub-band is configured to connect to the antenna connecting terminal via the switch. The first sub-band is included in a first band used for TDD communication. Another filter has a pass band corresponding to a second sub-band in...