ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,798, issued on Dec. 16, was assigned to Huawei Technologies Co. LTD. (Shenzhen, China).
"Communication apparatus for signal transmission and signal transmission method" was invented by Tao Wu (Shenzhen, China) and Xiaoyue Hou (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "This application provides communication apparatuses and methods for signal transmission and reception, applied to, for example, backscatter communications. In an example method, a tag device receives a downlink excitation signal, where the downlink excitation signal is a linear frequency modulated signal or a multi-carrier linear frequency modulated signal. The tag...