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High density storage on a magnetic stripe card

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3 Author(s)
D. F. Smith ; Centre for Res. in Inf. Storage Technol., Plymouth Univ., UK ; T. Donnelly ; D. J. Mapps

A new variable rate code with soft-decision decoding has yielded a storage capacity of 2 kBytes (30 kbit/in2) on a standard banking credit card. The capacity can be further increased through higher track density and using a computationally intensive Bayesian blind inverse filter. This work is continuing to an estimated 4 kByte (100 kbit/in2) capacity while remaining compatible with current systems

Published in:

IEEE Transactions on Magnetics  (Volume:32 ,  Issue: 5 )