US 12,229,619 B2
Method and system for backscatter communication using pre-defined templates
Peter Østergaard Nielsen, Ishøj (DK); and Ole Christian Andersen, Belmont, CA (US)
Assigned to HaiLa Technologies Inc., Montreal (CA)
Filed by HaiLa Technologies Inc., Montréal (CA)
Filed on Jan. 27, 2023, as Appl. No. 18/102,545.
Claims priority of provisional application 63/304,320, filed on Jan. 28, 2022.
Prior Publication US 2023/0244883 A1, Aug. 3, 2023
Int. Cl. G06K 7/10 (2006.01); H04B 7/22 (2006.01)
CPC G06K 7/10079 (2013.01) [H04B 7/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A backscattering communication system, comprising:
a transmitting unit configured to transmit a signal comprising a transmitted frame including a pre-defined data payload;
a backscattering tag configured to:
receive, from the transmitting unit, the signal comprising the transmitted frame;
encode tag data over the pre-defined data payload to generate a modified data payload; and
transmit a backscattered signal comprising a backscattered frame including the modified data payload;
a receiving unit that includes a memory unit, the receiving unit configured to:
receive, from the backscattering tag, the backscattered signal; and
decode the modified data payload, in the backscattered frame, to recover the tag data, wherein the decoding is based on prior knowledge of the receiving unit of the pre-defined data payload, the prior knowledge being based on data stored in the memory unit.