https://patents.google.com/patent/US20180212807A1/en
P Zhang, D Bharadia, K Joshi, S Katti - US Patent App. 15/676,474, 2018
A backscatter tag communicate device includes, in part, a receiver configured to receive a WiFi packet conforming to a communication protocol defining a multitude of codewords, a mapper configured to map at least a first subset of the multitude of …