公开(公告)号：US06311305B1

公开(公告)日：2001-10-30

申请号：US09032905

申请日：1998-03-02

申请人： Baruch Sollish ,  Dennis Howe

发明人： Baruch Sollish ,  Dennis Howe

IPC分类号： H03M1300

CPC分类号： G11B20/00579 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00927 ,  G11B20/1426 ,  G11B20/18 ,  H03M13/00 ,  H03M13/1515 ,  H03M13/29 ,  H03M13/2909 ,  H03M13/2924 ,  H03M13/293 ,  H03M13/35

摘要： A method and system for overriding error correction capabilities of digital optical media is provided. The overriding of the error correction codes (ECC) is accomplished by causing a non-correctable pattern of erroneous symbols to occur in the ECC codeword. Specific redundancy symbols are replaced with invalid symbols. The non-correctable error pattern is recognized by the ECC decoder as being non-correctable and the ECC decoder does not attempt to change the values of any symbols of an ECC codeword that is contaminated by the detectable non-correctable error pattern.

摘要翻译： 提供了一种用于覆盖数字光学介质的纠错能力的方法和系统。 错误校正码（ECC）的覆盖是通过使ECC码字中出现错误符号的不可校正模式来实现的。 特定冗余符号被替换为无效符号。 不可修正的错误模式由ECC解码器识别为不可校正，并且ECC解码器不尝试改变被可检测的不可校正错误模式污染的ECC码字的任何符号的值。

公开(公告)号：US6028972A

公开(公告)日：2000-02-22

申请号：US957710

申请日：1997-10-24

申请人： Kiyoshi Inatome ,  Etsuro Saito ,  Katsuichi Tachi

发明人： Kiyoshi Inatome ,  Etsuro Saito ,  Katsuichi Tachi

IPC分类号： G03B31/02 ,  G11B7/003 ,  G11B7/09 ,  G11B7/095 ,  G11B7/135 ,  G11B7/14 ,  G11B20/18 ,  H03M13/29 ,  G06K7/00 ,  G11B7/00

CPC分类号： G11B7/1384 ,  G03B31/02 ,  G11B20/18 ,  G11B20/1803 ,  G11B20/1809 ,  G11B7/0032 ,  G11B7/0938 ,  G11B7/0956 ,  G11B7/14 ,  H03M13/1515 ,  H03M13/29 ,  H03M13/2906 ,  H03M13/2924

摘要： A motion picture film having digital audio data recorded in at least one sound track thereof. Such digital audio data includes a plurality of bytes of data each having 8 bits of data. Each respective bit of each byte of audio data is recorded in a sound track of the film in the film running direction and each byte is arranged side-by-side in a direction normal to the film running direction to form a compression processing block. C1 parity data is added to each such compression processing block and C2 parity data is added after a predetermined interval of plural compression processing blocks. Error correction may be performed by utilizing the C1 and C2 parity data for each compression processing block and at the predetermined interval of plural compression blocks.

摘要翻译： 具有记录在其至少一个音轨中的数字音频数据的电影胶卷。 这样的数字音频数据包括每个具有8位数据的多个数据字节。 音频数据的每个字节的每个位被记录在胶片运行方向上的胶片的声轨中，并且每个字节沿垂直于胶片运行方向的方向并排布置以形成压缩处理块。 将C1奇偶校验数据添加到每个这样的压缩处理块，并且在多个压缩处理块的预定间隔之后添加C2奇偶校验数据。 可以通过利用每个压缩处理块的C1和C2奇偶校验数据并且在多个压缩块的预定间隔来执行错误校正。

公开(公告)号：US4964128A

公开(公告)日：1990-10-16

申请号：US250516

申请日：1988-09-29

申请人： Yoichiro Sako ,  Hiroshi Ogawa

发明人： Yoichiro Sako ,  Hiroshi Ogawa

IPC分类号： G11B20/12 ,  G11B20/18 ,  H03M13/27

CPC分类号： H03M13/2703 ,  G11B20/1809 ,  H03M13/2924

摘要： In a method for transmitting interleaved data, when the respective data blocks to be transmitted are interleaved and augmented by the error correcting parity codes before being transmitted on the transmission channel, a prescribed number of dummy data are provided between the respective data blocks so that the data block and the neighboring data blocks are not in the interleaving relation. In this matter, data addition, correction and substitution can be made easily for each data block or a group of blocks without influencing the error correction parity codes of the remaining block data.

公开(公告)号：US4683572A

公开(公告)日：1987-07-28

申请号：US653255

申请日：1984-09-24

申请人： Constant P. M. J. Baggen ,  Leonardus M. H. E. Driessen ,  Rudy W. J. Pollen ,  Lodewijk B. Vries

发明人： Constant P. M. J. Baggen ,  Leonardus M. H. E. Driessen ,  Rudy W. J. Pollen ,  Lodewijk B. Vries

IPC分类号： H03M13/00 ,  G11B20/18 ,  H03M13/27 ,  G06F11/10

CPC分类号： H03M13/293 ,  G11B20/1809 ,  H03M13/27 ,  H03M13/2924

摘要： For the decoding of a data stream which is word-wise protected against errors by a double Reed-Solomon code with symbol-wise interleaving over the code words, first the reliability information for the constituent symbols is aggregated for a code word. Therefrom the strategy is determined, entailing the number of erase symbols and the maximum number of error symbols to be corrected. The correction result is compared with a reliability code and on the basis thereof all symbols obtain an at least trivalent secondary reliability indication for decoding in the second code.

摘要翻译： 对于通过在码字上进行符号方式的双重Reed-Solomon码的字面保护以防止错误的数据流的解码，首先为代码字聚合构成符号的可靠性信息。 确定策略，包括擦除符号的数量和要校正的最大错误符号数。 将校正结果与可靠性代码进行比较，并且基于此，所有符号获得用于第二代码中的解码的至少三价次级可靠性指示。