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On DC free magnetic recording codes generated by finite state machines

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1 Author(s)
Ferreira, H. ; Rand Afrikaans University, Johannesburg, South Africa

State systems for the encoding of the following magnetic recording codes, with minimum Hamming distance dmin, as indicated, are presented. A R = ½, (1, 4, 3), dmin= 2 code; a R = ½, (0, 3, 3), dmin= 4 code; and a R = 2/4, (0, 3, 2), dmin= 4 code. An encoder and decoder for the (1, 4, 3) code are shown. Minimum Hamming distance aspects of dc free codes, generated by finite state machines, are briefly discussed.

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Magnetics, IEEE Transactions on  (Volume:19 ,  Issue: 6 )