Patent ID: 6011497
Filing Date: 2000-01-04
Classification: G11B,H03M

Abstract:
A method of encoding successive data words for transmission through a channel, comprising steps of:(a) encoding successive data words into successive code words having alternating code word lengths, each code word having a plurality of bit locations;(b) imposing a first maximum transition run constraint on a first set of the bit locations, wherein each bit location in the first set is spaced S bit locations apart from one another with S being an integer greater than 1;(c) imposing a second maximum transition run constraint, which is different than the first maximum transition run constraint, on a second set of the bit locations, wherein the second set comprises each of the bit locations that are not in the first set; and(d) defining the alternating code word lengths and the value of S such that corresponding bit locations in successive code words have the same maximum transition run constraint.