Method and apparatus for locating mobile tags

US6456239B1 · kind B1 · utility

Assignee

• RF Technologies, Inc. · US

Inventors

• Jay Werb · Newton, US
• Emin Martinian · Arlington, US
• Melanie Swiderek · Manchester, US
• Samuel Levy · Schenectady, US
• Peter Stein · Pfungstadt, DE

Key dates

• Filing date: Aug 24, 2000
• Grant date: Sep 24, 2002
• Expiry date: Aug 24, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G06Q10/087
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and apparatus for determining tag location is disclosed. Tag reference data may be stored, e.g., in the form of a lookup table, as a trained neural network, and so on, and used to determine the location of tags. Readings used to determine tag location and/or preliminary tag locations may be filtered to produce reliable tag location indications. Packages of user configurable parameters can be provided and used for the filtering of the preliminary tag locations. Confidence levels may also be generated for determined tag locations and used, for example, to indicate how well an asset location system can distinguish between different tag locations.