ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,237,956, issued on Feb. 25, was assigned to Apple Inc. (Cupertino, Calif.).
"Methods, systems, and apparatuses for narrowband channel allocation and access" was invented by Alexander Krebs (Munich), Yong Liu (Campbell, Calif.), Lochan Verma (Danville, Calif.), Jinjing Jiang (Campbell, Calif.) and Su Khiong Yong (Palo Alto, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wireless device may use 2.5 MHz narrow band channel spacing. In some embodiments, clear channel assessment based listen before talk may be used to determine if a channel is idle or busy. In some embodiments, randomized channel access may be achieved using a pseudo random number g...