Patent ID: 6573845
Filing Date: 2003-06-03
Classification: G11B

Abstract:
Method for converting an analogue signal representing a runlength limited binary signal with runs having a length of at least N into a binary output signal comprising the following steps:a. sampling the analogue signal, b. generating an intermediary binary signal on the basis of the sampled analogue signal, c. identifying binary sequences within the intermediary binary signal having a length greater than 2Nâˆ’1, the sequences comprising a set of successive samples having the same binary value, and which set borders on samples having an opposite binary value and for each such binary sequence, d. selecting an analogue sequence in the sampled analogue input signal which corresponds to the identified binary sequence, e. searching for the existence of a plurality of significant local extrema within the selected analogue sequence, f. if such a plurality of significant local extrema is found, partitioning the identified binary sequence into a corresponding plurality of smaller runs comprising at least one run of length N.