US 7,548,165 B2
Performance enhancement algorithm for radio frequency identification (RFID) systems
John F. Braun, Fairfield, Conn. (US); Jean-Hiram Coffy, Norwalk, Conn. (US); Arthur J. Parkos, Southbury, Conn. (US); and Michael P. Swenson, Danbury, Conn. (US)
Assigned to Pintey Bowes Inc., Stamford, Conn. (US)
Filed on Apr. 04, 2006, as Appl. No. 11/397,160.
Prior Publication US 2007/0236337 A1, Oct. 11, 2007
Int. Cl. G08B 13/14 (2006.01)
U.S. Cl. 340—572.7  [340/539.1; 340/572.1; 340/572.2; 340/572.4] 19 Claims
OG exemplary drawing
 
1. A method for enhancing the accuracy a Radio Frequency IDentification (RFID) system exhibiting a propensity for inconsistent RFID tag reporting, the RFID system having at least one interrogating antenna for transmitting RF energy within a read field during an interrogation cycle, and an RFID tag within the read field communicating with the antenna; the method comprising the steps of:
establishing a timeout setting indicative of the time that each interrogating antenna transmits RF energy within a respective read field;
determining when an RFID tag exhibits inconsistent reporting behavior within a read field; and
increasing the timeout setting of the respective interrogating antenna when the inconsistent reporting behavior is exhibited.