公开(公告)号：WO2004075057A1

公开(公告)日：2004-09-02

申请号：PCT/SG1997/000024

申请日：1997-06-14

Applicant: THOMSON CONSUMER ELECTRONICS, INC. ,  PETERSON, Eric, Carl ,  CSICSATKA, Tibor, George ,  CHEAH, Sin, Hui

Inventor： PETERSON, Eric, Carl ,  CSICSATKA, Tibor, George ,  CHEAH, Sin, Hui

IPC: G06F11/00

CPC classification number: G11B20/10009 ,  G11B20/1813

Abstract: A Method and apparatus is disclosed for detecting and concealing errors in stored digital samples. A multibit digital input sample is received and an error detecting code, corresponding to that input sample is calculated. Then a multibit digital storage sample is generated by substituting the error detecting code for the same number of least significant bits of the input sample. The storage sample is then stored in a memory device. A previously stored sample is retrieved from the memory device and is analyzed to detect whether an error has occurred. If an error is detected, a substitute sample is produced for the retrieved sample, otherwise the retrieved sample is produced.

Abstract translation: 公开了一种用于检测和隐藏存储的数字样本中的错误的方法和装置。 接收多位数字输入采样，并计算与该输入采样相对应的检错码。 然后通过将错误检测码替换为输入样本的相同数量的最低有效位来生成多位数字存储样本。 然后将存储样品存储在存储器件中。 从存储器件检索先前存储的样本，并进行分析以检测是否发生错误。 如果检测到错误，则为检索到的样本生成替代样本，否则生成检索到的样本。

公开(公告)号：WO98044502A1

公开(公告)日：1998-10-08

申请号：PCT/JP1998/001381

申请日：1998-03-27

IPC: H04N5/92 ,  G11B20/00 ,  G11B20/10 ,  G11B20/18

CPC classification number: G11B20/10 ,  G11B20/00007 ,  G11B20/1809 ,  G11B20/1813 ,  Y10S358/906

Abstract: A regenerative signal of an ADV head preceding a recording head has its error corrected by an ECC decoder, then has its compression coding cancelled by a compression decoder, and is inputted to a selector. A regenerative signal of a CNF head for reproducing recorded data immediately after recording is supplied to the selector via the ECC decoder and the compression decoder. As another input of the ECC decoder, a by-pass signal from an ECC encoder on the recording side is supplied. The ECC decoder writes the two inputs into different areas of a memory, and then selectively reads out and supplies one of the written inputs to the selector. The selector is switched from the output of the ADV head to the by-pass signal at an IN-point, and preview is enabled by an image which is compression-coded and then decoded.

Abstract translation: 在记录头之前的ADV头的再生信号由ECC解码器进行纠错，然后压缩编码被压缩解码器取消，并被输入到选择器。 用于再现记录后立即记录数据的CNF磁头的再生信号通过ECC解码器和压缩解码器提供给选择器。 作为ECC解码器的另一输入，提供来自记录侧的ECC编码器的旁路信号。 ECC解码器将两个输入写入存储器的不同区域，然后选择性地读出并将一个写入的输入提供给选择器。 选择器从ADV头的输出切换到IN点处的旁路信号，预览由压缩编码然后解码的图像启用。

公开(公告)号：WO1989010029A1

公开(公告)日：1989-10-19

申请号：PCT/US1989001050

申请日：1989-03-14

Applicant: DIGITAL EQUIPMENT CORPORATION

Inventor： DIGITAL EQUIPMENT CORPORATION ,  WENG, Lih-Jyh

IPC: H03M13/00

CPC classification number: H03M13/1515 ,  G11B20/1813 ,  G11B20/1883 ,  G11B2220/20 ,  H03M13/29 ,  H03M13/2903 ,  H03M13/2906 ,  H03M13/2927 ,  H03M13/3738

Abstract: A method for encoding information in a codeword which may be subjected to no more than a predetermined degree of corruption, and then, without fully decoding a corrupted version of the codeword, determining from the corrupted codeword whether the information was used in encoding the codeword; the information is encoded as a first preliminary code sequence in accordance with a first code; the codeword is formed by combining the first preliminary code sequence with a second preliminary code sequence generated in accordance with a second code; the first preliminary code sequence is stripped from the corrupted version of the code word to derive a test sequence comprising a corrupted version of possibly the second preliminary code sequence; the test sequence is decoded in accordance with the second code; and a determination is made, based on the decoding, whether the information was used in encoding the codeword. In another aspect, bad sector, servo correction, and sector address values are encoded for storage in a header associated with a sector of storage on a storage medium by encoding the address value with leading zero symbols in accordance with a code having a first rate, encoding the bad sector and servo correction values in a systematic code having a second rate, and combining the first and second preliminary code sequences to generate a codeword of the first code such that the bad sector and servo correction values appear explicitly in the codeword but the sector address value does not appear explicitly in the codeword.

Abstract translation: 一种对码字中的信息进行编码的方法，所述方法可以经历不超过预定程度的损坏，然后，在不完全解码所述码字的损坏版本的情况下，从所述损坏的码字确定所述信息是否用于编码所述码字; 该信息根据第一代码被编码为第一初步代码序列; 通过组合第一初步码序列与根据第二码产生的第二初步码序列形成码字; 从代码字的损坏版本剥离第一初步代码序列以导出包括可能的第二初步代码序列的损坏版本的测试序列; 测试序列根据第二代码进行解码; 并且基于解码进行该信息是否用于编码码字的确定。 在另一方面，通过根据具有第一速率的代码对具有前导零符号的地址值进行编码，将坏扇区，伺服校正和扇区地址值编码为用于存储在与存储介质上的存储扇区相关联的报头中， 在具有第二速率的系统代码中对坏扇区和伺服校正值进行编码，并且组合第一和第二初步码序列以产生第一码的码字，使得坏扇区和伺服校正值明显地出现在码字中，但是 扇区地址值没有明确地出现在码字中。

公开(公告)号：WO2007114564A1

公开(公告)日：2007-10-11

申请号：PCT/KR2007/001167

申请日：2007-03-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： HWANG, Sung-Hee ,  KO, Jung-Wan ,  PARK, Hyun-Jeong ,  KWON, Joon-Hwan ,  CHUNG, Hyun-Kwon

IPC: G11B20/18

CPC classification number: G11B20/1833 ,  G11B20/1813 ,  H03M13/1515 ,  H03M13/27 ,  H03M13/2906 ,  H03M13/2909 ,  H03M13/2942

Abstract: A method of and apparatus to data encode and decode for improving the reliability of data that is compatible with a conventional error correction code (ECC) block format, a storage medium, a system to drive the storage medium, and a method of generating an extra parity ECC block, the data encoding method including generating N number of ECC blocks with respect to user data and generating at least one extra parity ECC block for the generated N number of ECC blocks.

Abstract translation: 一种用于数据编码和解码的方法和装置，用于提高与常规纠错码（ECC）块格式兼容的数据的可靠性，存储介质，驱动存储介质的系统，以及生成额外的 奇偶校验ECC块，所述数据编码方法包括相对于用户数据生成N个ECC块，并为所生成的N个ECC块生成至少一个额外奇偶校验ECC块。

公开(公告)号：WO1997017655A1

公开(公告)日：1997-05-15

申请号：PCT/IB1996001164

申请日：1996-10-30

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  TOLHUIZEN, Ludovicus, Marinus, Gerardus, Maria ,  BAGGEN, Constant, Paul, Marie, Jozef

IPC: G06F11/16

CPC classification number: G06F11/1044 ,  G11B20/1813

Abstract: For error-protected storing data, the data is encoded by an error protecting code to encoded data and stored in a medium. Next, the data is read out again and compared with the encoded data. If a particular discrepancy between stored data and encoded data is found, a discrepancy identifier is formed and stored with the stored data for raising the error protection by said error protecting code.

Abstract translation: 对于错误保护的存储数据，数据由编码数据的错误保护代码编码并存储在介质中。 接下来，再次读出数据并与编码数据进行比较。 如果找到存储的数据和编码数据之间的特定差异，则形成差异标识符并存储与存储的数据，以通过所述错误保护代码提高错误保护。

公开(公告)号：WO1984002999A1

公开(公告)日：1984-08-02

申请号：PCT/JP1984000025

申请日：1984-01-31

Applicant: SONY CORPORATION ,  FUKAMI, Tadashi ,  ODAKA, Kentaro

Inventor： SONY CORPORATION

IPC: G11B05/09

CPC classification number: G11B27/3027 ,  G11B20/1813 ,  G11B20/1876 ,  G11B27/032 ,  G11B27/036 ,  G11B2220/90 ,  G11B2220/913

Abstract: A PCM signal processing apparatus provides correction processing so that no pulse noise (abnormal sound) is generated by the reproduction of erroneous data (e.g., unerased data) that has not been recognized as an error from an error-detecting code added to the data. The format of the transmission data processed by the apparatus is such that one block of data is constituted by a plurality of PCM data items, and one segment of data is constituted by a plurality of blocks, each block being provided with a data error detecting code (CRC) and a segment address (S-ADR) to which the block belongs. A detection circuit (15) is provided which detects whether or not the segment addresses of reproduced data within each block within one segment are the same. When the detection circuit (15) detects a non-coincidence, an interpolation circuit (13) is actuated in reponse to the detection output and effects some form of correction processing, such as mean value interpolation, higher-order interpolation, or the holding of the previous value.

公开(公告)号：WO2004084218A2

公开(公告)日：2004-09-30

申请号：PCT/IB2004/050271

申请日：2004-03-17

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V. ,  BLUM, Martinus, W.

Inventor： BLUM, Martinus, W.

IPC: G11B20/18

CPC classification number: G11B20/1813 ,  G11B20/1217 ,  G11B2020/1222 ,  G11B2020/1277 ,  G11B2020/1288 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2541

公开(公告)号：WO2003088128A2

公开(公告)日：2003-10-23

申请号：PCT/US2003/006243

申请日：2003-02-28

Applicant: DIGITAL STREAM USA, INC.

Inventor： VARGAS, Rodolfo

IPC: G06K

CPC classification number: G11B20/10527 ,  G11B20/00007 ,  G11B20/1813 ,  G11B27/034 ,  G11B27/105 ,  G11B2220/20 ,  G11B2220/2545

Abstract: A method and apparatus for storing and retrieving different types of content relative to an audio CD is described. In one embodiment of the invention, input content of a certain type is converted into converted content of that same type represented by currently unplayable data. The currently unplayable data is Redbook-encoded into data carried in Redbook-encoded format. The data carried in Redbook-encoded format is optically recorded onto a CD. In one embodiment of the invention, data carried in Redbook-encoded format is optically read from a CD. The data carried in Redbook-encoded format is Redbook-decoded into currently unplayable data representing converted content of a certain type, which was converted from input data of the same type. The currently unplayable data is converted into currently playable reconstructed data approximately representing the input content. The input content may be input video content, input audio content sampled at a higher sampling frequency than a sampling frequency allowed by Redbook-encoded format, input audio content sampled with a larger word length than a word length allowed by Redbook-encoded format, etc.

Abstract translation: 描述了一种用于相对于音频CD存储和检索不同类型的内容的方法和装置。 在本发明的一个实施例中，将某种类型的输入内容转换为由当前不可播放数据表示的相同类型的转换内容。 目前无法播放的数据是红皮书编码成红皮书编码格式的数据。 以红皮书编码格式携带的数据被光学记录到CD上。 在本发明的一个实施例中，以CD格式光学读取以红皮书编码格式携带的数据。 以红皮书编码格式携带的数据被红皮书解码为表示从相同类型的输入数据转换的特定类型的转换内容的当前不可播放数据。 当前不可播放的数据被转换成近似表示输入内容的当前可播放的重建数据。 输入内容可以是输入视频内容，以比红皮书编码格式允许的采样频率更高的采样频率采样的输入音频内容，以比红皮书编码格式允许的字长更大的字长采样的输入音频内容等 。

公开(公告)号：WO0243065A2

公开(公告)日：2002-05-30

申请号：PCT/IL0101092

申请日：2001-11-27

Applicant: TTR TECHNOLOGIES LTD ,  SOLLISH BARUCH ,  BRODY MOSHE

Inventor： SOLLISH BARUCH ,  BRODY MOSHE

IPC: G11B11/00 ,  G11B19/12 ,  G11B20/00 ,  G11B20/14 ,  G11B20/18

CPC classification number: G11B19/122 ,  G11B19/12 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00579 ,  G11B20/00623 ,  G11B20/0063 ,  G11B20/00927 ,  G11B20/00949 ,  G11B20/1426 ,  G11B20/1813 ,  G11B2020/1461

Abstract: A copy protected DVD disc and a method for producing and validating the DVD disc is provided. In an embodiment the method for protecting a DVD from being illegally copied includes producing a signature which includes introducing ambiguous symbols into an ECC block and partially disabling the error correction. A DVD encoder for use in producing the copy protected disc is also provided.

Abstract translation: 提供了一种防拷贝DVD光盘和一种用于产生和验证DVD光盘的方法。 在一个实施例中，用于保护DVD不被非法复制的方法包括产生签名，其包括将不明确的符号引入到ECC块中并部分地禁用纠错。 还提供了用于制造复制保护盘的DVD编码器。

公开(公告)号：WO01052255A1

公开(公告)日：2001-07-19

申请号：PCT/EP2001/000287

申请日：2001-01-11

IPC: G11B20/00 ,  G11B20/12 ,  G11B20/18

CPC classification number: G11B20/0063 ,  G11B20/00086 ,  G11B20/00927 ,  G11B20/1251 ,  G11B20/1813

Abstract: The invention relates to a data support and a method for producing a copy protected data support. According to the invention, non-readable storage areas are also stored on the data support, which results in very effective protection against copying.

Abstract translation: 建议有数据载体和用于产生复制保护数据载体的方法。 从这样的事实，除了不可读取的存储区域一个非常有效的拷贝保护结果存储在磁盘上。