Coding and decoding method for a sequence of elements, signal, coder, decoder, corresponding computer programs and storage means

Coding method for transmission of a sequence of input data, the sequence of input data being composed of elements that can be equal to at least two distinct values,

• the coding method comprising:
• a step to stretch the sequence of input data to form a stretched sequence, such that at least part of the stretched sequence does not have successive transitions;
• a step to cancel the disparity of the stretched sequence, to form a coded sequence such that the coded sequence includes approximately the same number of elements of each value.

Method for decoding a sequence of elements that can be equal to at least two distinct values, the elements forming at least one coded symbol, the coded symbol not having any successive transitions and having approximately the same number of elements of each value,

• the decoding method comprising:
• a destretching step to destretch the coded symbol, to form a destretched symbol;
• an analyzing step to analyze the disparity of the destretched symbol, to form a decoded symbol.

Coding device for a transmission of a sequence of elements that can be equal to at least two distinct values, the elements forming at least one input symbol, the coding device comprising:

• a stretching device configured to stretch at least one of the input symbols, to form a stretched symbol, such that the stretched symbol does not have any successive transitions;
• a cancelling device configured to cancel the disparity of the stretched symbol to form a coded symbol, such that the coded symbol comprises approximately the same number of elements of each value.

Device for decoding a sequence of elements that can be equal to at least two distinct values, the elements forming at least one coded symbol, wherein the coded symbol does not have any successive transitions and includes approximately the same number of elements of each value, the device comprising:

• a receiving device configured to receive the coded symbol;
• and
• a decoding device configured to decode each of the coded symbols, the coded symbols being decoded separately.

A computer program product adapted to the encoding of a sequence of elements that can be equal to at least two distinct values, the elements forming at least one input symbol,

• said computer program product comprising program code instructions recorded on a medium that can be used in a computer comprising:
• programming means readable by computer to perform a stretching step to stretch at least one of the input symbols to form a stretched symbol, such that the stretched symbol does not have any successive transitions, and
• programming means readable by computer to perform a cancelling step to cancel the disparity of the stretched symbol, to form a coded symbol, such that the coded symbol comprises approximately the same number of elements of each value.

A computer program product adapted to decoding a sequence of elements that can be equal to at least two distinct values, the elements forming at least one coded symbol, the coded symbol not having any successive transitions and having approximately the same number of elements of each value,

• said computer program product comprising program code instructions recorded on a medium that can be used in a computer comprising:
• programming means readable by computer to perform a destretching step to destretch the coded symbol, to form a destretched symbol, and
• programming means readable by computer to perform an analyzing step to analyze the disparity of the destretched symbol, to form a decoded symbol.

A computer readable storage medium, which is totally or partially removable, storing a set of machine executable instructions, said instructions being executable by a computer adapted to the encoding of a sequence of elements that can be equal to at least two distinct values, the elements forming at least one input symbol, to perform:

• a stretching step to stretch at least one of the input symbols to form a stretched symbol, such that the stretched symbol does not have any successive transitions, and
• a cancelling step to cancel the disparity of the stretched symbol, to form a coded symbol, such that the coded symbol comprises approximately the same number of elements of each value.

A computer readable storage medium, which is totally or partially removable, storing a set of machine executable instructions, said instructions being executable by a computer adapted to decoding a sequence of elements that can be equal to at least two distinct values, the elements forming at least one coded symbol, the coded symbol not having any successive transitions and having approximately the same number of elements of each value, to perform:

• a destretching step to destretch the coded symbol, to form a destretched symbol, and
• an analyzing step to analyze the disparity of the destretched symbol, to form a decoded symbol.