Code converting method and system

Details Code converting method and system Code converting method and system

G - Physics

06

F

354/106

G06F 5/00 (2006.01) G06F 7/68 (2006.01) H03M 1/00 (2006.01) H03M 7/00 (2006.01)

Patent

CA 1132712

ABSTRACT OF THE DISCLOSURE A code converting method in which a multivalue signal xi sampled at a sampling period of mT, where m (an even number) equals 2n (n being integer) and xi is non-negative integer not greater than m, is received and subjected to density conversion to be delivered out in the form of a train of m binary signals sampled at a sampling period of T. A Z-transform Y(Z) of the binary signal to be delivered out is expressed as, Image where qi+1 ? qi + Xi+1 + m, and mod 2; qo=O and where ?(xi, qi, Z) represents a polynomial of the order related to z-1 not greater than (m-1) which has non- zero terms having each a coefficient of 1(one) and which satisfies ?(k, qi, 1) = k, ?(k, qi, Z) = z-(m-1)?(k,qi,1/Z) and ?(k,O,Z)=?(k,I,Z) for k being an even number, and ?(k,O,Z)= Z-(m-1)?(k,1,1/Z) for k being an odd number.

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