Title:
【発明の名称】2値ソース信号のビットのストリームを2値チャネル信号のビットのストリームに符号化する方法
Document Type and Number:
Japanese Patent JP2003529875
Kind Code:
A
Abstract:
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 by multi-level coding 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 secondary channel is divided in at least a first section comprising user data and a second section comprising non user data. 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 copy protection can be improved.
Inventors:
Fan Dyke, Marten A
Application Number:
JP2001573473A
Publication Date:
October 07, 2003
Filing Date:
February 27, 2001
Export Citation:
Assignee:
Konin Krekka Philips Electronics NV
International Classes:
G11B20/10; G11B7/004; G11B7/007; G11B20/00; G11B20/12; G11B20/14; H03M5/14; H04L25/34; G11B20/18; (IPC1-7): G11B20/10; G11B7/004; G11B7/007; G11B20/12; G11B20/14
Attorney, Agent or Firm:
Tadahiko Ito
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