ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,969, issued on Jan. 20, was assigned to NIHON VIDEO SYSTEM Co. LTD. (Aichi, Japan).

"Optical transmission system" was invented by Kentaro Hashiguchi (Aichi, Japan) and Akikazu Hashiguchi (Aichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention aims to improve convenience and comfort when installing and using an optical transmission device for transmitting video signals. The present invention provides an adapter and a base station for an optical transmission system that optically transmits analog video signals or digital video signals between the adapter-base station pair, the adapter and the base station comprising a lens c...