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    • 3. 发明申请
    • METHOD OF ENCODING AND DECODING
    • 编码和解码的方法
    • WO03061139A2
    • 2003-07-24
    • PCT/IB0205413
    • 2002-12-12
    • KONINKL PHILIPS ELECTRONICS NVSTEK AALBERTSCHEP CORNELIS MBLUM MARTINUS W
    • STEK AALBERTSCHEP CORNELIS MBLUM MARTINUS W
    • G06F11/10G11B20/14G11B20/18H03M13/09H03M13/15
    • H03M13/616G06F11/10G11B20/1833H03M13/1515H03M13/2942H03M13/3761H03M13/63H03M13/6516
    • The invention relates to a method of encoding user data into codevectors and to a corresponding method of decoding codevectors into user data. In order to be able to use the same ECC decoder for decoding of more than one type of data a method of encoding is proposed comprising the steps of: a) generating a first block of a fixed first number of data symbols by taking a fixed second number, being smaller than said first number, of user data symbols, and a fixed third number of dummy data symbols, and by arranging said user data symbols and said dummy data symbols in a predetermined order, b) encoding said first block of data symbols using an ECC encoder (2) to obtain a codeword having a fixed number of symbols, said codeword comprising said first block of data symbols and a second block of a fixed forth number of parity symbols, and c) generating a codevector by selecting a fifth predetermined number of user data symbols and a sixth predetermined number of parity symbols from said codeword, the sum of said fifth and sixth number being predetermined and smaller than the sum of said second and forth number.
    • 本发明涉及一种将用户数据编码为码向量的方法以及将码向量解码为用户数据的对应方法。 为了能够使用相同的ECC解码器来解码多于一种类型的数据,提出了一种编码方法,包括以下步骤:a)通过采取固定的第二数据符号来产生固定的第一数量的数据符号的第一块 数字,小于所述第一数量的用户数据符号,以及固定的第三数量的虚拟数据符号,并且以预定顺序布置所述用户数据符号和所述虚拟数据符号,b)编码所述第一数据符号块 使用ECC编码器(2)来获得具有固定数目符号的码字,所述码字包括所述第一数据符号块和固定的第三数量的奇偶校验符号的第二块,以及c)通过选择第五 预定数量的用户数据符号和来自所述码字的第六预定数量的奇偶校验符号,所述第五和第六数字的总和是预定的并且小于所述第二和第四数目之和。
    • 4. 发明申请
    • RECORDING DEVICE AND METHOD
    • 记录装置和方法
    • WO2006008688A1
    • 2006-01-26
    • PCT/IB2005/052259
    • 2005-07-07
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BLUM, Martinus, W.VAN ROMPAEY, Bart
    • BLUM, Martinus, W.VAN ROMPAEY, Bart
    • G11B7/007
    • G11B7/1267G11B7/00736
    • The present invention relates to a recording device (1) and a corresponding recording method for recording user data in a user area (UA) on a recordable or rewritable optical record carrier (4) comprising OPC means (3) for performing optical power calibration by writing OPC test data on a record carrier (4) before user data are recorded thereon. To avoid the problem that no more user data can be recorded on the record carrier since an OPC area (40) particularly reserved for writing said OPC test data is full, and to enable the provision of a smaller OPC area (40), it is proposed according to the present invention that the OPC test data are written in said user area (41, 42) if the OPC area (40) reserved for writing said OPC test data is not usable or not provided on the record carrier (4).
    • 本发明涉及一种记录装置(1)和用于在可记录或可重写的光学记录载体(4)上的用户区域(UA)中记录用户数据的相应记录方法,包括OPC装置(3),用于通过 在记录载体(4)之前将OPC测试数据写入用户数据之前。 为了避免在记录载体上不再有用户数据被记录的问题,因为特别保留用于写入所述OPC测试数据的OPC区域(40)已满,并且能够提供较小的OPC区域(40), 如果用于写入所述OPC测试数据的OPC区域(40)不可用或未提供在记录载体(4)上,则根据本发明提出OPC测试数据被写入所述用户区域(41,42)。
    • 8. 发明申请
    • DEVICE AND METHOD FOR ERROR CORRECTION OF A DATA STREAM
    • 数据流错误校正的装置和方法
    • WO2006090302A2
    • 2006-08-31
    • PCT/IB2006050475
    • 2006-02-14
    • KONINKL PHILIPS ELECTRONICS NVVAN DEN BOSCH BRAMBLUM MARTINUS W
    • VAN DEN BOSCH BRAMBLUM MARTINUS W
    • G11B20/18
    • G11B20/1866G11B20/1833G11B2020/1272G11B2020/1288G11B2220/2541H03M13/11H03M13/15H03M13/2954
    • The present invention relates to a device and a corresponding method for error correction of a data stream comprising user data encoded into long distance code (LDC) words, control data encoded into burst indicating subcode (BIS) words and SYNC data, said LDC words and said BIS words being alternately arranged in physical clusters starting with SYNC data. In order to achieve that the result of the erasure correction can be predicted and that the erasure correction is comprehensible and easy to use, a device is proposed comprising: a separating unit (122) for separating said LDC words and said BIS words from said data stream, - an LDC decoder (129) for decoding said LDC words and for correcting errors and erasures in said LDC words, a BIS decoder (125) for decoding said BIS words and for detecting BIS errors in said BIS words, a SYNC detector (121) for detecting said SYNC data and for detecting SYNC errors in said SYNC data, a control unit (126) for marking erasures for decoding of said LDC words based on said BIS errors and said SYNC errors by marking locations in LDC words adjacent to BIS errors and/or SYNC errors as erasures depending on control settings determining the behavior of the erasure correction of said LDC decoder.
    • 本发明涉及包含编码为长距离码(LDC)字的用户数据的数据流的纠错装置和相应方法,编码成突发指示子码(BIS)字和SYNC数据的控制数据,所述LDC字和 所述BIS字以SYNC数据开始的物理簇交替排列。 为了实现可以预测擦除校正的结果,并且消除校正是可理解和易于使用的,提出了一种设备,包括:分离单元(122),用于将所述LDC字和所述BIS字与所述数据分离 流, - 用于解码所述LDC字并用于校正所述LDC字中的错误和擦除的LDC解码器(129),用于解码所述BIS字并用于检测所述BIS字中的BIS错误的BIS解码器(125),SYNC检测器 121),用于检测所述SYNC数据并用于检测所述SYNC数据中的SYNC错误;控制单元(126),用于根据所述BIS错误和所述SYNC错误来标记用于解码所述LDC字的所述LDC字的擦除,其中通过在邻近BIS的LDC字中标记位置 错误和/或SYNC错误作为擦除,这取决于确定所述LDC解码器的擦除校正的行为的控制设置。