Registers – Systems controlled by data bearing records – Inventory
Reexamination Certificate
2004-10-01
2010-02-16
St.Cyr, Daniel (Department: 2876)
Registers
Systems controlled by data bearing records
Inventory
C235S382000, C235S383000
Reexamination Certificate
active
07661591
ABSTRACT:
A method and system for providing point-of-sale and point-of-delivery and/or distribution of products in a restricted access unit near the customer. The method and system utilize products equipped with radio frequency tags and reduce the effects of energy sharing, shadowing, and nulls. In one embodiment, a plurality of RF tagged products are placed within a refrigerator, cabinet, or other micro-warehouse that has a door or opening that can detect access to the micro-warehouse. In one embodiment, one or more antennas are positioned within the door. Each antenna may have a transmission line of sight and be configured to emit a signal at predefined frequencies. Each antenna generates an electromagnetic field within the micro-warehouse. In one embodiment, the products are positioned in one or more bins, compartments, or similar devices located within the micro-warehouse such that at least two of the plurality of products are spaced a distance from each other to reduce energy sharing. The electromagnetic field is moved or altered within the micro-warehouse through the use of reflectors, devices that move the antennas, or other mechanisms.
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Dearing Michael
Krueger Julia E.
Linton John
Linton William A.
Vidugiris Gediminas
Michael & Best & Friedrich LLP
Promega Corporation
St.Cyr Daniel
LandOfFree
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