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    • 2. 发明申请
    • METHOD FOR CODING A DATA STREAM
    • 编码数据流的方法
    • WO2003054877A2
    • 2003-07-03
    • PCT/EP2002/013902
    • 2002-12-09
    • THOMSON LICENSING S.A.KERN, Alois
    • KERN, Alois
    • G11B20/00
    • H03M5/145G11B20/1426
    • The present invention relates to a method for coding a data stream (DS), in which the digital sum value (DSV) of the coded data stream (CS) should be close to zero and two alternative code words (CWa, CWb) can be used for the coding at least for some of the possible data values (Bytes).It is the object of the invention to propose a method for coding a data stream (DS) which provides for simple coding of the data stream (CS) whilst at the same time ensuring a digital sum value (DSV) close to zero.According to the invention, the object is achieved by a method in which the digital sum value (DSV) of the coded data stream (CS) is determined, this value is compared with a first or a second boundary value (BV) in dependence on the polarity (Pol) of the coded data stream (CS) and a received data value (Byte) is coded by a first or a second code word (CWa, CWb) belonging to the respective boundary value (BV) in dependence on the result of the comparison.
    • 本发明涉及一种用于对数据流(DS)进行编码的方法,其中编码数据流(CS)的数字和值(DSV)应接近于零,并且两个替代码字(CWa,CWb)可以是 用于至少对一些可能的数据值(Bytes)进行编码。本发明的目的是提出一种用于对数据流(DS)进行编码的方法,该方法提供数据流(CS)的简单编码,同时在 同时确保数字和值(DSV)接近于零。根据本发明,目的是通过确定编码数据流(CS)的数字和值(DSV)的方法来实现的,该值是 与根据编码数据流(CS)的极性(Pol)的第一或第二边界值(BV)相比较,并且接收的数据值(Byte)由第一或第二代码字(CWa,CWb )根据比较结果属于相应的边界值(BV)。