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    • 9. 发明申请
    • DEVICE AND METHOD FOR ENCODING A SECONDARY INFORMATION OF A SECONDARY CHANNEL INTO A CHANNEL DATA STREAM OF A PRIMARY CHANNEL
    • 将二级信道的二次信息编码到主信道的信道数据流中的装置和方法
    • WO2005104120A3
    • 2006-02-16
    • PCT/IB2005051270
    • 2005-04-19
    • KONINKL PHILIPS ELECTRONICS NVCOENE WILLEM M J MIMMINK ALBERT H J
    • COENE WILLEM M J MIMMINK ALBERT H J
    • G11B20/00
    • G11B20/00086G11B2020/1249
    • The present invention relates to a device in a corresponding method for encoding a secondary information (r) of a secondary channel into a channel data stream (3) of a primary channel, said channel data stream (3) comprising at least two symbol rows of channel symbols one-dimensionally evolving along a first direction (t) and aligned with each other along a second direction (r), said two directions constituting a two-dimensional lattice of symbol positions. To provide a device and a method for encoding which can be used in a two-dimensional storage system, it is proposed that the device comprises: - a primary encoder (11) for encoding a primary information (1) into said primary channel data stream (3) of said primary channel, - a secondary encoder (12) for encoding said secondary information (2) into a secondary channel data stream (6) for embedding into the recorded signal of said primary channel data stream (3) and - a parameter modulation means (13) for varying a recording parameter (7) for one or more symbol rows based on said secondary information around an average value (9) using a variation parameter (5), said recording parameter (7) being used for recording said primary channel data stream (3) on a record carrier (21), said variations being made such that said average value (9) remains substantially constant and that said modulations can be detected by a decoding device, said secondary information being encoded into said variations.
    • 本发明涉及用于将辅助信道的辅助信息(r)编码为主信道的信道数据流(3)的相应方法中的装置,所述信道数据流(3)包括至少两个符号行 通道符号沿着第一方向(t)一维地演变并沿着第二方向(r)彼此对准,所述两个方向构成符号位置的二维网格。 为了提供可以在二维存储系统中使用的编码装置和方法,提出该装置包括:主编码器(11),用于将主信息(1)编码成所述主信道数据流 (3), - 用于将所述辅助信息(2)编码为辅助信道数据流(6)的次级编码器(12),用于嵌入到所述主信道数据流(3)的记录信号中, - 参数调制装置(13),用于使用变化参数(5)基于围绕平均值(9)的所述辅助信息来改变用于一个或多个符号行的记录参数(7),所述记录参数(7)用于记录 所述主信道数据流(3)在记录载体(21)上,所述变化使得所述平均值(9)保持基本上恒定,并且所述调制可由解码装置检测,所述次信息被编码到所述 变异 秒。