US 12,248,837 B2
Method of optimizing read technology for high density items
Ian J. Forster, Chelmsford (GB)
Assigned to Avery Dennison Retail Information Services LLC, Mentor, OH (US)
Filed by AVERY DENNISON RETAIL INFORMATION SERVICES, LLC, Mentor, OH (US)
Filed on Aug. 14, 2019, as Appl. No. 16/540,299.
Prior Publication US 2021/0049334 A1, Feb. 18, 2021
Int. Cl. G06K 7/10 (2006.01); G06K 19/07 (2006.01)
CPC G06K 7/10366 (2013.01) [G06K 19/0723 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of optimizing radio frequency (RF) reading of a container of RFID tagged items comprising:
using an RF transmitting system to propagate an RF signal through the container from a first side to a second side;
providing an RF receiving system on the second side and measuring the RF signal propagating through the container on the second side;
providing a host system in communication with the RF transmitting system and the RF receiving system comprising algorithms to maximize RF power transmission from the first side to the second side by selectively altering antenna characteristics of the RF transmitting system based on a measured RF signal received from the RF receiving system, to maximize propagation of the RF signal through the container, wherein the algorithms drive a first antenna of the RF transmitting system and a second antenna of the RF receiving system to create first and second near field electromagnetic patterns, respectively, the first and second near field electromagnetic patterns forming a transmission medium to transmit the RF signal from the first side to the second side; and
inventorying the RFID tagged items in the container responsive to the altering.