ALEXANDRIA, Va., June 19 -- United States Patent no. 12,335,026, issued on June 17, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).
"Multiple access in backscatter communication systems" was invented by Sanjeewa Herath (Kanata, Canada) and Javad Abdoli (Kanata, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A backscatter transmission scheme is provided in which a carrier signal is transmitted by a carrier communication device discontinuously as carrier signal bursts. The carrier signal, while it is on, is divided into carrier time segments. Each carrier time segment has a specified time. The different carrier time segments represent different times that backscatter devices can make bac...