ALEXANDRIA, Va., April 2 -- United States Patent no. 12,267,408, issued on April 1, was assigned to ZaiNar Inc. (Redwood City, Calif.).

"Frequency and gain calibration for time synchronization in a network" was invented by Philip A. Kratz (Redwood City, Calif.), Daniel M. Jacker (Redwood City, Calif.), Mainak Chowdhury (Redwood City, Calif.) and Alexander Hooshmand (Redwood City, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes, at a first node: transmitting a first calibration signal at a first time-of-departure measured by the first node; and transmitting a second calibration signal at a second time-of-departure measured by the first node. The method also includes, at a second node: ...