Patent ID: 7557713
Filing Date: 2009-07-07
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 the antennas at least one radio frequency transmitter that drives the antennas to emit the radio frequency signals into the first area; 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; a detector disposed with respect to the path of travel so that second signals output by the detector indicate a height of items passing proximate the detector through the path of travel, and a processor that receives the first signals from the at least one receiver, wherein the processor is programmed to