IP Library Granted Patent US 7,468,650
Granted Patent B2
US 7,468,650 · App. 11/428,006 · Granted Dec 23, 2008

Methods and systems to improve RFID inventory polling accuracy

Assignee: International Business Machines Corporation
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Quick Facts
Patent No.
US 7,468,650
App. No.
11/428,006
Granted
Dec 23, 2008
Kind
B2
Abstract

A method to improve polling accuracy in RFID systems is disclosed. Embodiments comprise receiving information from one or more tags by a tag reader, comparing the information from the tags to other information, and adding the tag to an inventory if the tag does not exist in the other information. While some embodiments compare the tag information from the tags to baseline inventories for other areas, some embodiments compare it to current inventories for the other areas or compare it to a combination of both inventories. Some embodiments involve polling RFID tags in storage containers.

Claims (4)

1. A method to improve polling accuracy in a radio frequency identification system, the method comprising:

receiving a first set of information of a first RFID tag by a tag reader, wherein the tag reader receives information from one or more tags located in a first area;

comparing the first set of information to information of a current inventory of a second area; and

adding identification information of the first RFID tag to a first inventory if the comparison reveals that at least some of the first set of information is absent from the information of the current inventory of the second area.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2006
From: CHILDRESS, RHONDA L.; CHILDS, BRADLEY; HUFFMAN, JOANN; HYMAN, STEWART J.; KUMHYR, DAVID B.; WATT, STEPHEN J.
To: INTERNATIONAL BUSINESS MACHINES CORPORATION
Reel/Frame 018014/0016 →
Continuity (1)
Related Publication 20080001748A1 · Jan 3, 2008