US 12,086,674 B2
Systems and methods for reading RFID tags
Sabesan Sithamparanathan, Middlesex (GB); Ian White, Somerset (GB); Michael Crisp, Cambridgeshire (GB); Richard Vincent Penty, Cambridgeshire (GB); and Martin Neuhaus, Cambridgeshire (GB)
Assigned to PERVASID LIMITED, Cambridge (GB)
Filed by PervasID Limited, Cambridge (GB)
Filed on Nov. 15, 2021, as Appl. No. 17/527,139.
Application 17/527,139 is a continuation in part of application No. 17/298,455, previously published as PCT/GB2019/053387, filed on Nov. 29, 2019.
Claims priority of application No. 1819591 (GB), filed on Nov. 30, 2018.
Prior Publication US 2022/0075968 A1, Mar. 10, 2022
Int. Cl. G06K 7/10 (2006.01)
CPC G06K 7/10356 (2013.01) [G06K 7/10089 (2013.01); G06K 7/10297 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An RFID system for reading at least one RFID tag, the system comprising:
an RFID reader coupled to a first antenna for reading an RFID tag; and
an RFID communication disruptor coupled to a second antenna and configured to disrupt a communication signal that is according to an RFID protocol, the communication signal for communication from the RFID reader to the RFID tag or from the RFID tag to the RFID reader, by transmitting an interference signal to prevent the RFID reader from reading the RFID tag,
wherein the first antenna is configured to emit one or more beams in different directions inside a tag reading boundary,
wherein the second antenna is configured to emit one or more beams in different directions beyond the tag reading boundary,
wherein the RFID communication disruptor is further coupled to the first antenna,
wherein the RFID reader is further coupled to the second antenna, and
wherein the RFID system is configured to switch transmitting of the interference signal between inside and beyond the tag reading boundary at a predetermined switching rate.