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    • 42. 发明授权
    • Apparatus and method for counting error rates in an optical compact disc storage system
    • 用于计算光盘存储系统中的错误率的装置和方法
    • US06961879B1
    • 2005-11-01
    • US09578217
    • 2000-05-23
    • Li-Huan Jen
    • Li-Huan Jen
    • G06F11/00H03M13/00H03M13/15H03M13/29
    • H03M13/2927H03M13/15H03M13/2924
    • A method and system are disclosed for counting error rates occurring within an optical compact disk system as data is read from an optically encoded compact disk. In a preferred embodiment error flag data are generated as errors occur within the optical compact disk system. From the error flag data, error flag bits corresponding to errors in reading information from an optically encoded disk are identified for further processing. Further processing includes, among other things, generating an error rate over a predetermined time period. The operation of some or all of the functions within the optical compact disk system may be interrupted upon the exceeding of a predetermined threshold error rate. From the error rate information, the hardware, software and firmware within the optical compact disk system may be optimized for increased performance.
    • 公开了一种方法和系统,用于计算在从光学编码的光盘读取数据时在光学光盘系统内发生的错误率。 在优选实施例中,当光学光盘系统内发生错误时,产生错误标志数据。 从错误标志数据中,识别与从光学编码盘读取信息中的错误对应的错误标志位,用于进一步处理。 除其他之外,进一步处理包括在预定时间段内产生错误率。 在超过预定阈值错误率的情况下,可能会中断在光学光盘系统内的一些或所有功能的操作。 根据错误率信息,可以优化光学光盘系统内的硬件,软件和固件以提高性能。
    • 43. 发明授权
    • Signal processor for correcting and detecting errors
    • 用于纠正和检测错误的信号处理器
    • US06912682B1
    • 2005-06-28
    • US09831505
    • 2000-09-08
    • Toru Aoki
    • Toru Aoki
    • G11B20/18H03M13/15H03M13/27H03M13/29G11C29/00G11B5/09
    • H03M13/6566G11B20/1833G11B20/1866H03M13/1515H03M13/2924H03M13/2927
    • A signal processor performs error correction on data which has been subjected to predetermined signal processing, for each predetermined block unit, by an error correction block, in parallel with an operation of sequentially storing the data in a cache memory. Then, error detection is performed on the data for each predetermined block unit by a descrambling/error detection block, and the data is stored in a buffer memory. Based on the results of the error detection and the error correction, when there exists some error in the data, the data with the error, which is stored in the buffer memory, is read out to be subjected to error correction again. When there is no error, the data corresponding to one block and stored in the buffer memory is transmitted to a host computer without performing error correction again.
    • 信号处理器对与数据顺序地存储在高速缓冲存储器中的操作并行地对纠错块执行针对每个预定块单元的预定信号处理的数据进行纠错。 然后,通过解扰/错误检测块对每个预定块单元的数据执行错误检测,并将数据存储在缓冲存储器中。 基于错误检测和纠错的结果,当数据存在一些错误时,读出存储在缓冲存储器中的具有错误的数据再次进行错误校正。 当没有错误时,对应于一个块并存储在缓冲存储器中的数据被发送到主计算机,而不再次进行纠错。
    • 45. 发明授权
    • Code error correcting and detecting apparatus
    • 代码纠错检测装置
    • US06243845B1
    • 2001-06-05
    • US09098095
    • 1998-06-16
    • Yuichiro TsukamizuShinichiro Tomisawa
    • Yuichiro TsukamizuShinichiro Tomisawa
    • G11C2900
    • H03M13/2924G11B20/10527G11B20/1833G11B2020/1062H03M13/151H03M13/2921
    • An error correcting and detecting apparatus for a CD-ROM or DVD system executes a high speed decode process. The apparatus includes an input interface, a temporary memory, a correcting circuit, a detecting circuit, a principal memory, and an output interface. The input interface fetches digital data in a block by block manner. The temporary memory stores the fetched digital data in a block by block manner. The correcting circuit performs error correction on digital data read from the temporary memory in a block by block manner using the error correction code and rewrites erroneous digital data to the temporary memory with the corrected digital data. The detecting circuit performs error detection on the error corrected digital data and supplied from the temporary memory in a block by block manner using the error detection code and sets an error flag based on a detection result. The principal memory stores, in a block by block manner, the error corrected digital data supplied to the detecting circuit from the temporary memory. The output interface transfers the error corrected digital data stored in the principal memory to an external unit.
    • 用于CD-ROM或DVD系统的纠错和检测装置执行高速解码处理。 该装置包括输入接口,临时存储器,校正电路,检测电路,主存储器和输出接口。 输入接口以块的方式取出数字数据。 临时存储器以逐块方式存储所读取的数字数据。 校正电路使用纠错码以逐块方式对从临时存储器读取的数字数据执行纠错,并用经校正的数字数据将错误的数字数据重写到临时存储器。 检测电路对误差校正后的数字数据执行错误检测,并使用错误检测码逐块地从临时存储器提供,并根据检测结果设置错误标志。 主存储器以块的方式存储从临时存储器提供给检测电路的纠错数字数据。 输出接口将存储在主存储器中的纠错数字数据传送到外部单元。
    • 46. 发明授权
    • Error correction processor for correcting a multi-dimensional code by
generating an erasure polynomial over one dimension for correcting
multiple codewords in another dimension
    • 纠错处理器,用于通过在一维上产生擦除多项式来校正多维码,用于校正另一维度中的多个码字
    • US6047395A
    • 2000-04-04
    • US16563
    • 1998-01-30
    • Christopher P. Zook
    • Christopher P. Zook
    • G11B20/18H03M13/15H03M13/29H03M13/00
    • H03M13/154G11B20/1833H03M13/158H03M13/29H03M13/2909H03M13/2924H03M13/293G11B20/18
    • An error correction processor is disclosed for correcting errors in binary data read from a disk storage medium, wherein the binary data comprises a first and second set of intersecting ECC codewords of a multi-dimensional codeword. The error correction processor comprises a data buffer for storing the ECC codewords read from the disk storage medium; a syndrome generator for generating ECC syndromes in response to a codeword in the second set; an error-locator polynomial generator for generating an error locator polynomial .sigma.(x) in response to the ECC syndromes; a selector for selecting between the error-locator polynomial .sigma.(x) and an erasure polynomial .sigma.(x).sub.EP, wherein:(i) the erasure polynomial .sigma.(x).sub.EP is generated while processing the first set codewords; and(ii) the erasure polynomial .sigma.(x).sub.EP is used to correct at least two codewords in the second set; andan error corrector for generating correction values in response to either the error-locator polynomial .sigma.(x) or the erasure polynomial .sigma.(x).sub.EP output by the selector, the correction values for correcting errors in the codeword in the second set.
    • 公开了一种用于校正从盘存储介质读取的二进制数据中的错误的纠错处理器,其中二进制数据包括多维码字的第一和第二组相交ECC码字。 纠错处理器包括用于存储从盘存储介质读取的ECC码字的数据缓冲器; 用于响应于第二组中的码字生成ECC综合征的校正子发生器; 一个误差定位器多项式发生器,用于响应ECC校验子产生误差定位多项式sigma(x); 用于在误差定位多项式sigma(x)和擦除多项式sigma(x)EP之间进行选择的选择器,其中:(i)在处理第一集合码字时产生擦除多项式sigma(x)EP; 和(ii)擦除多项式sigma(x)EP用于校正第二组中的至少两个码字; 以及用于响应于由选择器输出的误差定位多项式sigma(x)或擦除多项式sigma(x)EP)产生校正值的纠错器,用于校正第二组中码字中的错误的校正值。
    • 49. 发明授权
    • Method and apparatus of processing digital broadcasting signal including transmission ensemble number fields in transmitter and receiver
    • 处理数字广播信号的方法和装置,包括发射机和接收机中的传输集合号字段
    • US08391314B2
    • 2013-03-05
    • US12886284
    • 2010-09-20
    • Jae Hyung SongByoung Gill KimJin Woo KimWon Gyu SongHyoung Gon LeeIn Hwan ChoiChul Kyu Mun
    • Jae Hyung SongByoung Gill KimJin Woo KimWon Gyu SongHyoung Gon LeeIn Hwan ChoiChul Kyu Mun
    • H04J3/16G06F15/16
    • H04L1/0041G11B2020/184H03M13/2924H04L1/0056H04L1/0059H04L1/0065H04L1/0072H04L1/0075H04L25/03171H04L25/03203H04L27/02H04L2025/03382H04W24/02H04W28/06
    • A method and an apparatus for processing digital broadcast signal are disclosed. The method of processing a digital broadcasting signal in a transmitter includes performing RS (Reed-Solomon) encoding on signaling data containing cross layer information between a physical layer and a upper layer, wherein the signaling data includes a first field indicating a protocol version change of the signaling data, a second field indicating a length of an extension field of a header included in the signaling data, and at least one field indicating a number of ensembles for at least one of a first transmission mode and a second transmission mode, and wherein the ensembles include a collection of services, each of the services being a package of packetized streams of mobile service data, forming data groups including the signaling data and the mobile service data, forming mobile service data packets including the signaling data and the mobile service data in the data groups, transmitting the digital broadcasting signal including the mobile service data packets during slots, wherein the first transmission mode is a mode in which the mobile service data are transmitted while reserving greater than 118 packets out of 156 packets in the slot and the second transmission mode is a mode in which the mobile service data are transmitted while reserving less than or equal to 118 packets out of 156 packets in the slot.
    • 公开了一种处理数字广播信号的方法和装置。 在发射机中处理数字广播信号的方法包括对包含物理层和上层之间的交叉层信息的信令数据执行RS(Reed-Solomon)编码,其中信令数据包括指示协议版本变化的第一字段 信令数据,指示包括在信令数据中的报头的扩展字段的长度的第二字段以及指示第一传输模式和第二传输模式中的至少一个的总数的至少一个字段,并且其中 集合包括服务集合,每个服务是移动服务数据的分组化流的包,形成包括信令数据和移动服务数据的数据组,形成包括信令数据和移动服务数据的移动服务数据分组 在数据组中,在时隙期间发送包括移动业务数据分组的数字广播信号 在第一传输模式中,是在时隙中的156个分组中保留大于118个分组的情况下发送移动业务数据的模式,第二传输模式是其中发送移动业务数据的模式,同时保留小于或等于 等于插槽156个数据包中的118个数据包。