Patent ID: 7589635
Filing Date: 2009-09-15
Classification: B07C,B65G,G06K,G06Q,H01Q

Abstract:
1. A conveyor system for processing items on which radio frequency identification tags are disposed, said system comprising: a frame; a conveyor that is disposed movably on the frame and that conveys items through a path of travel, each item having at least one respective radio frequency identification tag disposed thereon; a plurality of antennas disposed proximate the path of travel so that each said antenna at least one radio frequency transmitter that drives the antennas to emit the gain patterns into the respective predetermined first areas; at least one radio frequency receiver that receives signals from the antennas corresponding to the responses received by the antennas from the respective radio frequency identification tags and outputs first signals corresponding to the responses; and a processor that receives the first signals from the at least one receiver, wherein