Modulation code system and methods of encoding and decoding a signal

Abstract

The invention relates to a modulation code system and methods of encoding and decoding a signal to be used for data transmission or data storage. Such systems comprise an encoder (100) for transforming an original signal s into an encoded signal c satisfying predefined second constraints before said signal being transmitted via a channel (300). Such modulation code systems further comprise a decoder (200) for decoding the encoded signal c, after restoration, back into the original signal s. It is the object of the invention to improve such known systems and methods in such a way that they require less hardware. This object is achieved according to the invention in that the encoder (100) comprises a modulation encoder (110) transforming the original signal s into an intermediate signal t satisfying predefined first constraints and a transformer encoder (120) for transforming the intermediate signal t into the encoded signal c. The object is further achieved in such a way that the decoder (200) comprises a transformer decoder (220) for re-transforming the encoded signal c into said intermediate signal t and a modulation code decoder (210) for decoding that intermediate signal t into said original signal s.

Dependencies are inferred from the claim text.