公开(公告)号：US06912661B1

公开(公告)日：2005-06-28

申请号：US09355219

申请日：1998-01-15

申请人： Lauren Ann Christopher ,  Max Artigalas ,  Friedrich Rominger ,  Juergen Vogel ,  Alexander Kravtchenko

发明人： Lauren Ann Christopher ,  Max Artigalas ,  Friedrich Rominger ,  Juergen Vogel ,  Alexander Kravtchenko

IPC分类号： G06F1/00 ,  G06F21/10 ,  G11B20/00 ,  G11B20/18 ,  G06F11/30 ,  G06F12/14 ,  H04L9/00

CPC分类号： G06F21/10 ,  G06F2211/007 ,  G11B20/00086 ,  G11B20/00557 ,  G11B20/1833

摘要： A method and apparatus for preventing unauthorized use of DVDs on a DVD ROM drive. The method comprises a DVD disc that includes special data processing. When the DVD is replayed on a standard DVD ROM drive the invention causes the output of the DVD ROM drive to be erroneous, such that the computer cannot use the data. According to the invention, when encoding a disc, the error correction and/or error detection bits, check bytes, are moved into the normal or main data area. When this scrambled data is output from a standard DVD ROM drive, the data in the check byte area is lost and the information is not useable. For authorized use, this scrambling is reversed before sending video and/or audio data to the MPED decoder and AC-3 decoder respectively.

摘要翻译： 一种用于防止在DVD ROM驱动器上非法使用DVD的方法和装置。 该方法包括一个包含特殊数据处理的DVD盘。 当在标准DVD ROM驱动器上重放DVD时，本发明导致DVD ROM驱动器的输出错误，使得计算机不能使用该数据。 根据本发明，当对盘进行编码时，纠错和/或错误检测位，校验字节被移动到正常或主数据区。 当从标准DVD ROM驱动器输出该加密数据时，检查字节区域中的数据丢失并且该信息不可用。 对于授权使用，在将视频和/或音频数据分别发送到MPED解码器和AC-3解码器之前，该加扰是相反的。

公开(公告)号：US06718505B1

公开(公告)日：2004-04-06

申请号：US09723423

申请日：2000-11-28

申请人： Alexander Kravtchenko ,  Friedrich Rominger ,  Jürgen Vogel

发明人： Alexander Kravtchenko ,  Friedrich Rominger ,  Jürgen Vogel

IPC分类号： H03M1300

CPC分类号： H03M13/2721 ,  G11B20/18 ,  G11B20/1833 ,  H03M13/15 ,  H03M13/29

摘要： The invention relates to an error-correction method for use in a process of decoding cross-interleaved Reed-Solomon code (CIRC) that corrects errors in data stored as C1 code words and C2 code words in a memory with several locations, each of said locations containing a data byte of said data, and an apparatus performing said method. The new method implies specific regulations for defining which data words are to be used for C1 and C2 decoding and for the processing order. The system memory for a deinterleaver implementation can be of a smaller size as compared to conventional memories. In addition, only a single CIRC decoder needs to be used for performing the process of decoding cross-interleaved Reed-Solomon code.

摘要翻译： 本发明涉及一种纠错方法，用于对交错交错的里德 - 所罗门码（CIRC）进行解码，该纠错方法用于校正存储有多个位置的存储器中的C1码字和C2码字的数据中的错误， 包含所述数据的数据字节的位置，以及执行所述方法的装置。 新方法意味着用于定义要用于C1和C2解码以及处理顺序的数据字的具体规定。 与传统存储器相比，用于解交织器实现的系统存储器可以具有较小的尺寸。 另外，仅需要使用单个CIRC解码器来执行解码交错的里德 - 所罗门码的处理。

公开(公告)号：US07139961B2

公开(公告)日：2006-11-21

申请号：US10468322

申请日：2002-02-04

申请人： Alexander Kravtchenko

发明人： Alexander Kravtchenko

IPC分类号： H03M13/00

CPC分类号： H03M13/293 ,  G11B20/1833 ,  H03M13/151 ,  H03M13/29 ,  H03M13/2924

摘要： CIRC (cross interleave Reed-Solomon code) cods decoding includes for each input frame a one-symbol delay operation of every second data symbol and the inversion of parity symbols, C1 word decoding, de-interleaving, C2 word decoding, and a two-symbol delay operation before output. The error correction capabilities can be improved if the C1 word decoding, de-interleaving and C2 word decoding are carried out twice (double pass operation) before the two symbol delay operation and output. The invention allows double pass operation as well as single pass operation and uses a single memory with minimum capacity, wherein to three parts of the memory specific operations are assigned and wherein the memory is controlled in a special way.

摘要翻译： CIRC（交叉交织Reed-Solomon码）码解码包括对于每个输入帧，每第二数据符号的一符号延迟操作和奇偶校验符号的反转，C1字解码，解交织，C2字解码， 输出前的符号延迟操作。 如果在两个符号延迟操作和输出之前执行C1字解码，解交织和C2字解码两次（双通操作），则可以改善纠错能力。 本发明允许双程操作和单程操作，并且使用具有最小容量的单个存储器，其中分配存储器特定操作的三个部分，并且其中以特殊方式控制存储器。

公开(公告)号：US06665252B1

公开(公告)日：2003-12-16

申请号：US09717418

申请日：2000-11-21

申请人： Alexander Kravtchenko ,  Marten Kabutz ,  Bruno Peytavin

发明人： Alexander Kravtchenko ,  Marten Kabutz ,  Bruno Peytavin

IPC分类号： G11B700

CPC分类号： H03M13/6343 ,  G11B20/10009 ,  H03M13/3961 ,  H03M13/41

摘要： DVDs have currently the highest storage density among the optical discs of practical use. Due to the high storage density the reproduced signal is deteriorated by noise caused by inter-symbol interference, crosstalk, focus error, or mastering errors. A conventional threshold bit detector generates a high bit error rate in case of low SNR. For accurate reproduction of digital data from a DVD under low SNR conditions, a specific Viterbi detector is used which performs maximum likelihood sequence estimation.

摘要翻译： 目前DVD在实际使用的光盘中的存储密度最高。 由于存储密度高，由于符号间干扰，串扰，聚焦误差或母带误差引起的噪声，再生信号恶化。 常规的阈值比特检测器在低SNR的情况下产生高比特误码率。 为了在低SNR条件下从DVD准确再现数字数据，使用执行最大似然序列估计的特定维特比检测器。

公开(公告)号：US07353449B2

公开(公告)日：2008-04-01

申请号：US10513215

申请日：2003-05-06

申请人： Stefan Müller ,  Alexander Kravtchenko ,  Marten Kabutz

发明人： Stefan Müller ,  Alexander Kravtchenko ,  Marten Kabutz

IPC分类号： H03M13/00

CPC分类号： H03M13/158 ,  H03M13/1515

摘要： The invention relates to a Reed-Solomon decoder and to a method of soft decision decoding of Reed-Solomon codes, wherein a syndrome polynomial, an erasure polynomial, and a modified syndrome polynomial are computed on-the-fly in parallel by iteratively updating coefficients of these polynomials.

摘要翻译： 本发明涉及Reed-Solomon解码器和Reed-Solomon码的软判决解码方法，其中通过迭代地更新系数并行地计算校正子多项式，擦除多项式和修正的校正子多项式 的这些多项式。

公开(公告)号：US06718511B2

公开(公告)日：2004-04-06

申请号：US09739314

申请日：2000-12-18

申请人： Alexander Kravtchenko ,  Marten Kabutz ,  Bruno Peytavin

发明人： Alexander Kravtchenko ,  Marten Kabutz ,  Bruno Peytavin

IPC分类号： H03M1303

CPC分类号： H03M13/6343 ,  G11B7/005 ,  G11B20/10 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/4107 ,  H03M13/6502

摘要： Disclosed is an apparatus for detecting a signal received from a channel signal and for transforming this signal into a binary code sequence via a signal processing apparatus, which can perform a maximum likelihood detection of the reproduced data from an optical disk with reduced complexity. Accordingly, a method to detect a signal (EBS) received from a channel signal (HF), comprises the steps of digitizing the signal received from the channel, equalizing the digitized signal (Ak), generating branch metrics (b_mp, b_pm) from the equalized signal (Bk), determining the minimum (b_ml) of the generated branch metrics (b_mp, b_pm), determining a merge (m−, m+, m0) from the minimum (b_ml), and generating a bitstream signal from the succession of merges (m−, m+, m0).

摘要翻译： 公开了一种用于检测从信道信号接收的信号并经由信号处理装置将该信号变换成二进制码序列的装置，信号处理装置可以以降低的复杂度从光盘执行再现的数据的最大似然检测。 因此，检测从信道信号（HF）接收的信号（EBS）的方法包括以下步骤：对从信道接收到的信号进行数字化，使数字化信号（Ak）均衡，从而产生分支度量（b_mp，b_pm） 均衡信号（Bk），确定生成的分支度量（b_mp，b_pm）的最小值（b_ml），从最小值（b_ml）确定合并（m-，m +，m0），并从 合并（m-，m +，m0）。

公开(公告)号：US09008188B2

公开(公告)日：2015-04-14

申请号：US12934406

申请日：2009-03-27

申请人： Stefan Mueller ,  Alexander Kravtchenko ,  Stanislaw Klinke ,  Scott Matthew LoPresto

发明人： Stefan Mueller ,  Alexander Kravtchenko ,  Stanislaw Klinke ,  Scott Matthew LoPresto

IPC分类号： H04N7/18 ,  H03M13/11 ,  H03M13/25 ,  H03M13/39

CPC分类号： H03M13/1171 ,  H03M13/258 ,  H03M13/3944 ,  H03M13/395

摘要： New capabilities will allow conventional broadcast transmission to be available to mobile devices. A method of decoding a bitstream is described including receiving a demodulated bitstream, the demodulated bitstream encoded using a byte-code encoding process, arranging a portion of the demodulated bitstream into a subset of bits, reordering the subset of bits, and decoding the subset of bits based on a property of the subset of bits and the encoding process. An apparatus includes means for decoding a bitstream based on a property of the subset of bits and the encoding process.

摘要翻译： 新功能将允许传统的广播传输可用于移动设备。 描述了对比特流进行解码的方法，包括接收解调的比特流，使用字节码编码处理编码的解调比特流，将解调的比特流的一部分排列成比特的子集，重新排序比特的子集， 基于位的子集的属性和编码过程的位。 一种装置包括用于基于比特的子集和编码过程的属性来解码比特流的装置。

公开(公告)号：US20110026601A1

公开(公告)日：2011-02-03

申请号：US12934406

申请日：2009-03-27

申请人： Stefan Mueller ,  Alexander Kravtchenko ,  Stanislaw Klinke ,  Scott Matthew LoPresto

发明人： Stefan Mueller ,  Alexander Kravtchenko ,  Stanislaw Klinke ,  Scott Matthew LoPresto

IPC分类号： H04N7/12

CPC分类号： H03M13/1171 ,  H03M13/258 ,  H03M13/3944 ,  H03M13/395

摘要： New capabilities will allow conventional broadcast transmission to be available to mobile devices. A method of decoding a bitstream is described including receiving a demodulated bitstream, the demodulated bitstream encoded using a byte-code encoding process, arranging a portion of the demodulated bitstream into a subset of bits, reordering the subset of bits, and decoding the subset of bits based on a property of the subset of bits and the encoding process. An apparatus includes means for decoding a bitstream based on a property of the subset of bits and the encoding process.

摘要翻译： 新功能将允许传统的广播传输可用于移动设备。 描述了对比特流进行解码的方法，包括接收解调的比特流，使用字节码编码处理编码的解调比特流，将解调的比特流的一部分排列成比特的子集，重新排序比特的子集， 基于位的子集的属性和编码过程的位。 一种装置包括用于基于比特的子集和编码过程的属性来解码比特流的装置。

公开(公告)号：US07369476B2

公开(公告)日：2008-05-06

申请号：US09739601

申请日：2000-12-18

申请人： Alexander Kravtchenko ,  Marten Kabutz ,  Bruno Peytavin

发明人： Alexander Kravtchenko ,  Marten Kabutz ,  Bruno Peytavin

IPC分类号： G11B7/00

CPC分类号： G11B7/005

摘要： The present invention relates to a device for reading from and/or writing to optical recording media (1) having an optical scanner (2) for scanning the recording medium (1) by means of a light beam (3) and for generating scanning signals (HF) from the reflected beam (3), a data slicer (5) for converting a scanning signal (HF) output by the optical scanner (2) into a binary signal (HF″), an averaging unit (6) for forming an average value (M) from the scanning signal (HF, HF″) as input signal of the data slicer (5), and a control unit (14) for changing a parameter (T, OF) of the averaging unit (6). The object of the present invention is to propose a device of this type and also a suitable method therefor in which the average value (M) can be adapted to disturbances during the scanning of the recording medium. According to the invention, this is achieved by virtue of the fact that the control unit (14) has a unit (8, 10) for outputting a comparison value (S, HFN) and a comparator (7, 11) for comparing the average value (M) with this comparison value (S, HFN), and triggers a chance in the parameter (T, OF) in the event of the comparison value exceeded or undershot.

摘要翻译： 本发明涉及一种用于从具有用于通过光束（3）扫描记录介质（1）的光学扫描器（2）和光学记录介质（1）读取和/或写入光学记录介质的装置， （HF），用于将由所述光学扫描器（2）输出的扫描信号（HF）转换为二进制信号（HF“）的数据限幅器（5），用于从所述反射光束 从所述扫描信号（HF，HF“）形成作为所述数据限幅器（5）的输入信号的平均值（M），以及用于改变所述平均化单元的参数（T，OF）的控制单元（14） 6）。 本发明的目的是提出一种这种类型的装置，并且还提出了一种适合的方法，其中平均值（M）可以适应于记录介质的扫描期间的干扰。 根据本发明，这是通过控制单元（14）具有用于输出比较值（S，HFN）的单元（8,10）和用于比较平均值的比较器（7,11）的事实来实现的 值（M）与该比较值（S，HFN）相匹配，并且在超过或低于比较值的情况下触发参数（T，OF）中的机会。