Loading patent…
OwnerAntonius Adrianus Cornelis Maria Kalker, Jeroen Jan Lambertus Horikx +1inventors
InventorsAntonius Adrianus Cornelis Maria Kalker, Jeroen Jan Lambertus Horikx, Willem Marie Julia Marcel Coene
Estimating the term…
The invention relates to a method for encoding a stream of bits of a signal relating to a binary source into a stream of bits of a signal relating to a binary channel, the binary source comprising a main source and a secondary source, the main source being encoded in a main channel and the secondary source being encoded in a secondary channel, the secondary channel being embedded in the main channel in order to form the binary channel, wherein the binary channel is divided in blocks, each block comprising a number of user bits and that in at least one of the blocks the secondary channel also is used for encoding non-user bits. The invention further relates to an encoder to carry out this method, a decoder to decode the stream of bits relating to the binary channel and a record carrier provided with the encoded signal in the form of optically detectable marks. By means of the invention for example non-user data can be added that are used to prevent unauthorized copying.
A method for encoding a stream of bits of a signal relating to a binary source into a stream of bits of a signal relating to a binary channel, the binary source comprising a main source and a secondary source, the main source being encoded in a main channel and the secondary source being encoded in a secondary channel, the secondary channel being embedded in the main channel in order to form the binary channel, characterized in that the binary channel is divided in blocks, each block comprising a number of user bits and that in at least one of the blocks the secondary channel also is used for encoding non-user bits.
An encoder comprising an input for receiving a stream of bits of a signal relating to a binary source and an output for providing a stream of bits of a signal relating to a binary channel, the binary source comprising a main source and a secondary source, the encoder comprising means for encoding the main source in a main channel, means for encoding the secondary source in a secondary channel, and means for embedding the secondary channel in the main channel in order to form the binary channel, wherein means are provided to divide the binary channel in blocks, each block comprising a number of user bits and wherein in at least one of the blocks the secondary channel also non-user bits are encoded.
A device for decoding a stream of bits of a signal relating to a binary channel into a stream of bits of a signal relating to a binary source, which device comprises decoding means conceived to decode a main channel, the decoding means being also conceived to decode a secondary channel, the secondary channel being embedded in the main channel, and to correct errors in the stream of bits of the binary channel relating to the secondary channel using a stream of corrected bits of the binary channel relating to the main channel, wherein said decoding means further are conceived to decode non-user bits in the secondary channel.
A record carrier of the optical readable type in which information has been recorded as a pattern of optically detectable marks representing a binary channel arranged along a track, wherein the detectable marks comprise main channel bits and secondary channel bits, which are embedded in the main channel bits, the main channel bits and the secondary channel bits forming a binary channel, wherein the binary channel is divided in blocks, each block comprising a number of user bits and wherein in at least one of the blocks the secondary channel bits comprise non-user bits.
Dependencies are inferred from the claim text.