ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,979, issued on May 20, was assigned to DOPPLE IP B.V. (Assen, Netherlands).
"Wireless stereo headset with bidirectional diversity" was invented by Jacobus Cornelis Haartsen (Rolde, Netherlands), Tjapko Uildriks (Anderen, Netherlands) and Aalbert Stek (Emmen, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A communication protocol provides diversity in UL and DL between a headset and a host device that transmits right and left audio data on separate channels. Each ear piece establishes an independent channel to the host device, and there is another channel between them. Each ear piece monitors not only its own channel to the host, but also...