Timekeeping Systems, Inc.

John W Hoffman

Barry J Markwitz

Paolo Argentieri

Jason D Doyle

John E Hansley, Ii

Roger W Stahl

Dean M Chriss

Nicholas F Papatonis

Brent G Bowers

Mary T Upham

A tracking system that tracks persons and/or objects of interest without the need for triangulation techniques is disclosed. The tracking system utilizes very low power active radio frequency tags with limited effective broadcast range that operate only in the transmit mode with no need to establish two-way communication with any part of the system. The person or object of interest is provided with a radio frequency tag incorporating a unique identifier. Gateways connected to a common network interface are positioned relative to specific areas within the facility to be monitored. A computer connected to the same network as the gateways analyzes data relating to the strength of the of the radio frequency signals received by the radio frequency receivers from the radio frequency tags to determine if, and when, persons and/or objects of interest are present within particular subareas within the facility.

Tracking system for persons and/or objects

A display system for tracking large numbers of persons or objects in real-time is disclosed. The display system utilizes a tracking system that employs various types of technologies, such as RFID, to determine the location of the person and/or objects being tracked. The displays of the present invention utilize colors, graphics, and the physical groupings of related data on a display device, usually a computer monitor, to present tracking information in a compact, readily changeable, and easily analyzed format in real-time.

Display system for tracking large numbers of persons and/or objects

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Mentor, OH, United States of America

John W Hoffman