DEVICE AND METHOD FOR SUPPLYING PUNCTURED MAXIMUM TRANSITION CODE

摘要

PROBLEM TO BE SOLVED: To provide a channel code which sufficiently improves the coding gain with a minimum rate loss in a recording/reproducing system of high density. ;SOLUTION: A punctured maximum transition run(PMTR) code has transition permission bit slots and transition impermission bit slots. Each of the transition impermission bit slots is a bit slot, in which the generation of third continuous transition of a logic signal is not feasible, while each of the transition permission bit slots is a bit slot, in which the generation of third continuous transition of the logic signal is feasible. At least two transition permission bit slots, which are adjacent to each other, are present. The transition is generated from a high logic level to a low logic level or from a low logic level to a high logic level.;COPYRIGHT: (C)2000,JPO