System to Improve Error Code Decoding Using Historical Information and Associated Methods
    13.
    发明申请
    System to Improve Error Code Decoding Using Historical Information and Associated Methods 有权
    使用历史信息和相关方法改进错误代码解码的系统

    公开(公告)号:US20100287454A1

    公开(公告)日:2010-11-11

    申请号:US12023445

    申请日:2008-01-31

    IPC分类号: H03M13/09 G06F11/10

    CPC分类号: G06F11/1044

    摘要: A system to improve error code decoding using historical information may include storage partitioned into memory ranks, and a table to record symbols having failures for each memory rank. The system may also generate a memory rank score for each memory rank. The system may also include an error control decoder that may use the memory rank score when each memory rank is accessed in order to determine whether an error should be corrected or not.

    摘要翻译: 使用历史信息改进错误代码解码的系统可以包括分割成存储器排名的存储器,以及记录具有每个存储器级别故障的符号的表。 系统还可以为每个存储器等级产生存储器等级分数。 系统还可以包括错误控制解码器,其可以在访问每个存储器级时使用存储器等级分数,以便确定是否应该纠正错误。

    System to improve memory reliability and associated methods
    15.
    发明授权
    System to improve memory reliability and associated methods 有权
    系统提高内存可靠性和相关方法

    公开(公告)号:US08171377B2

    公开(公告)日:2012-05-01

    申请号:US12023374

    申请日:2008-01-31

    IPC分类号: G11C29/00

    摘要: A system to improve memory reliability in computer systems that may include memory chips, and may rely on a error control encoder to send codeword symbols for storage in each of the memory chips. At least two symbols from a codeword are assigned to each memory chip and therefore failure of any of the memory chips could affect two symbols or more. The system may also include a table to record failures and partial failures of the codeword symbols for each of the memory chips so the error control encoder can correct subsequent partial failures based upon the previous partial failures. The error control coder is capable of correcting and/or detecting more errors if only a fraction of a chip is noted in the table as having a failure as opposed to a full chip noted as having a failure.

    摘要翻译: 一种用于提高可能包括存储器芯片的计算机系统中的存储器可靠性的系统,并且可以依赖于错误控制编码器来发送用于存储在每个存储器芯片中的码字符号。 来自码字的至少两个符号被分配给每个存储器芯片,因此任何存储器芯片的故障可能影响两个或更多个符号。 该系统还可以包括用于记录每个存储器芯片的码字符号的故障和部分故障的表,因此错误控制编码器可以基于先前的部分故障来校正随后的部分故障。 误差控制编码器能够校正和/或检测更多的误差,如果在表中只有一部分芯片被注意为具有故障,而不是被称为具有故障的全芯片。

    Hybrid halftone generation mechanism using change in pixel error
    19.
    发明授权
    Hybrid halftone generation mechanism using change in pixel error 有权
    混合半色调产生机制使用像素误差的变化

    公开(公告)号:US08922834B2

    公开(公告)日:2014-12-30

    申请号:US13440820

    申请日:2012-04-05

    CPC分类号: H04N1/4053

    摘要: A method is disclosed. The method includes generating a Continuous Tone Image (CTI) with all pixel values same as a first gray level, generating an initial Half Tone Image (HTI) with all pixel values equal to minimum absorptance level and computing a change in pixel error for a first pixel. The change in pixel error is computed by identifying a first pixel indicated in a valid pixel map, toggling the first pixel with all the possible output states and swapping the first pixel with all neighbor pixels only if the stacking constraint is satisfied, updating the HTI with the maximum error decrease operation and continue to next pixel location till the end criteria is met.

    摘要翻译: 公开了一种方法。 该方法包括产生具有与第一灰度级相同的所有像素值的连续色调图像(CTI),产生具有等于最小吸收水平的所有像素值的初始半色调图像(HTI),并计算第一像素值的像素误差的变化 像素。 通过识别有效像素图中指示的第一像素来计算像素误差的变化,如果满足堆叠约束,则仅切换具有所有可能输出状态的第一像素并且将第一像素与所有相邻像素交换,用H 最大误差减小操作,并继续到下一个像素位置,直到满足结束标准。

    CORRECTING ERRORS IN LONGITUDINAL POSITION (LPOS) WORDS
    20.
    发明申请
    CORRECTING ERRORS IN LONGITUDINAL POSITION (LPOS) WORDS 有权
    纠正长期位置错误(LPOS)

    公开(公告)号:US20130003213A1

    公开(公告)日:2013-01-03

    申请号:US13612396

    申请日:2012-09-12

    IPC分类号: G11B5/09 G11B5/008

    摘要: A method for longitudinal position (LPOS) detection in a magnetic tape storage system for storing data upon linear tape open (LTO) magnetic storage tape, which data includes odd and even 36-bit LPOS words with error correcting ability. The method includes first encoding positional information onto the tape within the 36-bit LPOS words using each LPOS word's 8-bit sync mark field, and six of each LPOS word's 4-bit symbol fields, wherein 6 of 24 total bits comprise the encoded 8-bit sync mark field: Sy, and six 4-bit symbol fields are utilized as parity bits. The magnetic tape storage system passes the LTO magnetic storage tape encoded with the odd and even LPOS words with error correcting ability longitudinally across a servo reader/writer at a known speed, decoding the encoded positional information and detecting and correcting both ambiguous bits and single erroneous bit errors.

    摘要翻译: 一种用于在线性磁带打开(LTO)磁存储磁带上存储数据的磁带存储系统中的纵向位置(LPOS)检测方法,该数据包括具有纠错能力的奇数和偶数36位LPOS字。 该方法包括使用每个LPOS字的8位同步标记字段以及每个LPOS字的4位符号字段中的六个,在36位LPOS字中的位置信息之上编码位置信息,其中24个总比特中的6个包括编码的8 位同步标记字段:Sy和六个4位符号字段用作奇偶校验位。 磁带存储系统以已知速度将穿过伺服读取器/写入器的具有纠错能力的奇数和偶数LPOS字编码的LTO磁存储带纵向跨越伺服读取器/写入器,对编码的位置信息进行解码,并检测和校正两个不明确的位和单个错误 位错误。