Recovery of RLL encoded bit stream from an asymmetric data channel

摘要

The present invention relates to a method and an apparatus for compensating deteriorations and defects in data streams obtained from optical recording media. According to the invention, a method for bit recovery in an asymmetric data channel, whereby the data are demodulated by a demodulator, comprises the steps of: - detecting runlength violations prior to the demodulation of a runlength limited code, and - correcting the detected runlength violations prior to the demodulation. <IMAGE>