Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

Willem M J M Coene

Marten Erik Van Dijk

Constant P M J Baggen

An information carrier includes runlength limited marks in a track. The runlengths of the marks represent main channel bits and variations of a further parameter of the marks representing secondary channel bits. Not all marks have the variations, only marks of at least a predetermined runlength have the variations.

Information carrier, device for encoding, method for encoding, device for decoding and method for decoding

A stream of channel bits, of a signal relating to a binary channel, is decoded into a stream of source bits, of a signal relating to a binary source. This binary channel includes a main channel and a secondary channel. This secondary channel is embedded in the main channel. Errors in the stream of secondary channel bits are corrected using a stream of corrected main channel bits. This stream of corrected main channel bits is reconstructed from a stream of corrected source bits. The secondary channel can be embedded in the main channel in different manners, e.g. via multi-level coding or via merging-bit coding.

Method of decoding a stream of channel bits of a signal relating to a binary channel signal into a steam of source bits of a signal relating to a binary source signal

Growing community of inventors

Eindhoven, Netherlands

Willem M J M Coene