Punctured maximum transition run code, apparatus and method for

Coded data generation or conversion – Digital code to digital code converters – To or from run length limited codes

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341 94, H03M 700

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active

060973218

ABSTRACT:
A punctured maximum transition run (PMTR) code includes transition-allowed bit slots and transition-disallowed bit slots. Each of the transition-allowed bit slots is a bit slot in which a bit representing a third consecutive transition of a logic signal can occur whereas each of the transition-disallowed bit slots is a bit slot in which a bit representing a third consecutive transition of a logic signal cannot occur. There are at least two transition-allowed bit slots which are adjacent to each other. The transition occurs from a high logic level to a low logic level, or from a low logic level to a high logic level.

REFERENCES:
patent: 5731768 (1998-03-01), Tsang
patent: 5859601 (1999-01-01), Moon et al.
patent: 5949357 (1999-09-01), Fitzpatrick et al.
Kelly Knudson Fitzpatrick and Cory S. Modlin, "Time-varying MTR codes for High Density Magnetic Recording", ICC 1997, Nov. 1997.
Paul H. Siegel, "Distance-Enhancing Codes For Digital Recording", Digests of the Magnetic Recording Conference Sep. 8-10, 1997.

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