Low-Cost Electromagnetic Tagging Technology (1998)

by Rich Fletcher

TagSense, Inc.

Graduate studies at MIT Media Lab:

Master's thesis: "A Low-Cost Electromagnetic Tagging Technology for Wireless Identification, Sensing, and Tracking of Objects.", Feb, 1997.

PhD Thesis:"Low-Cost Electromagnetic Tagging: Design and Implementation", 2001.

Introduction: What is a tag?

• A tag is something attached to an object which enables a computer to electromagnetically identify the object and sense its state.
• For example, (April, 1996)

How do tags work?

Near-field RFID Tags

• Tag types
• Reader types
• Model
• Function

Far-field RFID Tags

• Model
• Function

Materials Tags

• Tag types
• Reader types
• Resonant tag
• LC Resonator implementation
• magnetostrictor implemetation
• Harmonic tag
• Harmonic function

Overview of Tag Technology

• Past
• Present
• Future

Overview of Tag Reader Technologies

• Past
• Present
• Future

Summary

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For further information, contact:

Rich Fletcher
Massachusetts Institute of Technology
Media Lab, E15-488
20 Ames St.
Cambridge, MA 02139

e-mail: fletcher@media.mit.edu