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1. (WO2012100231) LASER DETECTION ENHANCED RFID TAG READING EVENT TIMING SYSTEM AND METHOD

Pub. No.:    WO/2012/100231    International Application No.:    PCT/US2012/022125
Publication Date: Fri Jul 27 01:59:59 CEST 2012 International Filing Date: Sat Jan 21 00:59:59 CET 2012
IPC: G06K 17/00
Applicants: INNOVATIVE TIMING SYSTEMS, LLC
HANSEN, Kurt, S.
Inventors: HANSEN, Kurt, S.
Title: LASER DETECTION ENHANCED RFID TAG READING EVENT TIMING SYSTEM AND METHOD
Abstract:
Systems and methods for determining a time of a passing a detection line on a route by a participant having an RFID tag on the participant or an object associated with the participant, traveling along the route, the system includes a timing system an RFID tag reader system for wirelessly communicating with the RFID tag for communicating with RFID tags at one or more monitored points passed by the participant as the participant approaches the detection line, a tag reader system receives tag reads including a tag identifier for the RFID tags, time stamps each RFID tag read, and transmits them to the timing system, a laser detector detects a laser beam interrupt and generates a laser beam interrupt indicator, a laser detection system receives the generated laser beam interrupt indicator, and determines a beam interrupt time, and creates a laser beam interrupt message including the beam interrupt time, the timing system receives the tag read messages and the laser beam interrupt messages, determines the identity of the participant from the tag identifier, associates the laser beam interrupt message with the determined tag identifier, and stores the beam interrupt time as the time of detecting the passing of the participant at the detection line associated with the determined tag identifier.