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Second Harmonic Magneto-Resistive Imaging to Authenticate and Recover Data From Magnetic Storage Media

Published

Author(s)

David P. Pappas, C S. Arnold, G Shalev, C Eunice, D Stevenson, Steven Voran, Mike E. Read, Erin M. Gormley, James Cash, Ken Marr, James Ryan

Abstract

A scanning magneto-resistive microscope was developed that allows for high resolution imaging of magnetic tapes and digital media. By using second harmonic detection to remove thermal anomalies we are able to image sufficient lengths of tape for authentication purposes and for data recovery from damaged samples. This allows for high contrast images and direct conversion of the scanned information into originally recorded analog audio waveforms or digital data.
Proceedings Title
Proc. Intl. Soc. for Optical Engineering (SPIE)
Volume
4232
Conference Dates
November 5-8, 2000
Conference Location
Boston, MA, USA
Conference Title
SPIE - The International Society for Optical Engineering

Keywords

magneto-resistive imaging, data recovery, magnetic recording, forensics

Citation

Pappas, D. , Arnold, C. , Shalev, G. , Eunice, C. , Stevenson, D. , Voran, S. , Read, M. , Gormley, E. , Cash, J. , Marr, K. and Ryan, J. (2001), Second Harmonic Magneto-Resistive Imaging to Authenticate and Recover Data From Magnetic Storage Media, Proc. Intl. Soc. for Optical Engineering (SPIE), Boston, MA, USA (Accessed February 25, 2024)
Created February 28, 2001, Updated October 12, 2021