Title:
RF POINT OF SALE AND DELIVERY METHOD AND SYSTEM USING COMMUNICATION WITH REMOTE COMPUTER AND HAVING FEATURES TO READ A LARGE NUMBER OF RF TAGS
Document Type and Number:
WIPO Patent Application WO2003073201
Kind Code:
B1
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.
Inventors:
DEARING MICHAEL
VIDUGIRIS GEDIMINAS
VIDUGIRIS GEDIMINAS
Application Number:
PCT/US2003/004653
Publication Date:
April 01, 2004
Filing Date:
February 18, 2003
Export Citation:
Assignee:
PROMEGA CORP (US)
International Classes:
G07F7/02; B65G61/00; G06K7/08; G06K7/10; G06K7/12; G06K17/00; G06Q10/00; G06Q10/08; G06Q30/00; G06Q30/06; G07F7/08; G07F9/02; G07G1/00; (IPC1-7): G06F17/60
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