The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2009
Filed:
Mar. 23, 2006
James N. Cox, Green Lane, PA (US);
James N. Cox, Green Lane, PA (US);
Accu-Sort Systems, Inc., Telford, PA (US);
Abstract
A conveyor system for processing items on which radio frequency identification tags are disposed includes a frame, a conveyor that is disposed moveably 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 first antenna is disposed proximate the path of travel so that the first antenna radiates first radio frequency signals into a first area through which the items pass. A second antenna is disposed proximate the path of travel so that the second antenna receives first responses to the first radio frequency signals from the respective radio frequency identification tags. The information identifies a class protocol. A third antenna is disposed proximate the path of travel downstream from the first antenna and the second antenna. A fourth antenna is disposed proximate the path of travel so that the fourth antenna receives second responses to the radio frequency signals from the respective radio frequency identification tags. A transmitter drives the first antenna to emit the first radio frequency signals into the first area and drives the third antenna to emit second radio frequency signals into a second area. A radio frequency receiver receives signals from the second antenna corresponding to the first responses and outputs first output signals corresponding to the first responses and including the information. The receiver receives signals from the fourth antenna corresponding to the second responses and outputs second output signals corresponding to the second responses. A processor receives the first output signals and controls the transmitter to drive the third antenna responsively to the first output signals.