利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.066 秒)

    Decimal Floating Point Mechanism and Process of Multiplication without Resultant Leading Zero Detection
    1.
    发明申请
    Decimal Floating Point Mechanism and Process of Multiplication without Resultant Leading Zero Detection 失效
    十进制浮点机制和乘法过程，无需导致零检测

    公开(公告)号：US20110320512A1

    公开(公告)日：2011-12-29

    申请号：US12821648

    申请日：2010-06-23

    申请人： Steven R. Carlough ,  Adam B. Collura ,  Michael Kroener ,  Silvia Melitta Mueller

    发明人： Steven R. Carlough ,  Adam B. Collura ,  Michael Kroener ,  Silvia Melitta Mueller

    IPC分类号： G06F7/44 ,  G06F5/01

    CPC分类号： G06F7/4915 ,  G06F2207/4911

    摘要： A decimal multiplication mechanism for fixed and floating point computation in a computer having a coefficient mechanism without resulting leading zero detection (LZD) and process which assumes that the final product will be M+N digits in length and performs all calculations based on this assumption. Least significant digits that would be truncated are no longer stored, but retained as sticky information which is used to finalize the result product. Once the computation of the product is complete, a final check based on the examination of key bits observed during partial product accumulation is used to determine if the final product is truly M+N digits in length, or M+N−1 digits. If the latter is true, then corrective final product shifting is employed to obtain the proper result. This eliminates the need for dedicated leading zero detection hardware used to determine the number of significant digits in the final product. The corrective final product shifting also incorporates adjustments to the coefficient of the product when the product's exponent is at its extremes and the final product must be brought to be within the precision and range of a given format.

    摘要翻译： 具有系数机制而不产生前导零检测（LZD）的计算机中的固定和浮点计算的十进制乘法机制，其假设最终产品的长度为M + N个数字，并且基于该假设执行所有计算。 将被截断的最低有效数字不再存储，而是保留为用于确定结果产品的粘性信息。 一旦产品的计算完成，就使用基于在部分积累期间观察到的关键位的检查的最终检查来确定最终产品是真正的M + N个数字的长度，还是M + N-1个数字。 如果后者是真实的，则采用校正最终产品转换来获得适当的结果。 这消除了用于确定最终产品中有效数字数量的专用前导零检测硬件的需要。 当产品的指数处于极端状态并且最终产品必须在给定格式的精度和范围内时，纠正性最终产品转移也会对产品系数进行调整。

    Decimal floating point mechanism and process of multiplication without resultant leading zero detection
    2.
    发明授权
    Decimal floating point mechanism and process of multiplication without resultant leading zero detection 失效
    十进制浮点机制和乘法处理，而没有得到前导零检测

    公开(公告)号：US08495124B2

    公开(公告)日：2013-07-23

    申请号：US12821648

    申请日：2010-06-23

    申请人： Steven R. Carlough ,  Adam B. Collura ,  Michael Kroener ,  Silvia Melitta Mueller

    发明人： Steven R. Carlough ,  Adam B. Collura ,  Michael Kroener ,  Silvia Melitta Mueller

    IPC分类号： G06F7/52

    CPC分类号： G06F7/4915 ,  G06F2207/4911

    摘要： A decimal multiplication mechanism for fixed and floating point computation in a computer having a coefficient mechanism without resulting leading zero detection (LZD) and process which assumes that the final product will be M+N digits in length and performs all calculations based on this assumption. Least significant digits that would be truncated are no longer stored, but retained as sticky information which is used to finalize the result product. Once the computation of the product is complete, a final check based on the examination of key bits observed during partial product accumulation is used to determine if the final product is truly M+N digits in length, or M+N−1 digits. If the latter is true, then corrective final product shifting is employed to obtain the proper result. This eliminates the need for dedicated leading zero detection hardware used to determine the number of significant digits in the final product. The corrective final product shifting also incorporates adjustments to the coefficient of the product when the product's exponent is at its extremes and the final product must be brought to be within the precision and range of a given format.

    摘要翻译： 具有系数机制而不产生前导零检测（LZD）的计算机中的固定和浮点计算的十进制乘法机制，其假定最终产品的长度为M + N个数字，并且基于该假设执行所有计算。 将被截断的最低有效数字不再存储，而是保留为用于确定结果产品的粘性信息。 一旦产品的计算完成，就使用基于在部分积累期间观察到的关键位的检查的最终检查来确定最终产品是真正的M + N个数字的长度，还是M + N-1个数字。 如果后者是真实的，则采用校正最终产品转换来获得适当的结果。 这消除了用于确定最终产品中有效数字数量的专用前导零检测硬件的需要。 当产品的指数处于极端状态并且最终产品必须在给定格式的精度和范围内时，纠正性最终产品转移也会对产品系数进行调整。

    System and method for performing floating point store folding
    5.
    发明申请
    System and method for performing floating point store folding 失效
    执行浮点存储折叠的系统和方法

    公开(公告)号：US20060179100A1

    公开(公告)日：2006-08-10

    申请号：US11054686

    申请日：2005-02-09

    申请人： Juergen Haess ,  Michael Kroener ,  Dung Nguyen ,  Lawrence Powell ,  Eric Schwarz ,  Son Dao-Trong ,  Raymond Yeung

    发明人： Juergen Haess ,  Michael Kroener ,  Dung Nguyen ,  Lawrence Powell ,  Eric Schwarz ,  Son Dao-Trong ,  Raymond Yeung

    IPC分类号： G06F7/38

    CPC分类号： G06F9/3826 ,  G06F9/30014 ,  G06F9/3824 ,  G06F9/3838 ,  G06F9/3885

    摘要： A system for performing floating point arithmetic operations including a plurality of stages making up a pipeline, the stages including a first stage and a last stage. The system also includes a register file adapted for receiving a store instruction for input to the pipeline, where the data associated with the store instruction is dependent on a previous operation still in the pipeline. The system further includes a store register adapted for outputting the data associated with the store instruction to memory and a control unit having instructions. The instructions are directed to inputting the store instruction into the pipeline and to providing a path for forwarding the data associated with the store instruction from the last stage in the pipeline to the store register for use by the store instruction if the previous operation immediately precedes the store operation in the pipeline and if there is a data type match between the store instruction and the previous operation. In addition, the instructions are directed to inputting the store instruction into the pipeline and to providing a path for forwarding the data associated with the store instruction from the first stage in the pipeline to the store register for use by the store instruction if the previous operation precedes the store operation by one or more stage in the pipeline and if there is a data type match between the store instruction and the previous operation.

    摘要翻译： 一种用于执行浮点算术运算的系统，包括构成流水线的多个级，所述级包括第一级和最后级。 该系统还包括适于接收用于输入到流水线的存储指令的寄存器文件，其中与存储指令相关联的数据依赖于仍在流水线中的先前操作。 该系统还包括适于将与存储指令相关联的数据输出到存储器的存储寄存器和具有指令的控制单元。 这些指令旨在将存储指令输入到流水线中，并且提供一个路径，用于将与流水线中的最后一级相关联的存储指令的数据转发到存储寄存器以供存储指令使用，如果先前的操作紧接在 存储操作在流水线中，并且存储指令与先前操作之间存在数据类型匹配。 此外，该指令旨在将存储指令输入到流水线中，并且提供用于将与流水线中的第一级相关联的存储指令的数据转发到存储寄存器以供存储指令使用的路径，如果先前的操作 在存储操作之前在流水线中的一个或多个阶段，以及存储指令和先前操作之间是否存在数据类型匹配。

    Examination of residues of data-conversions
    6.
    发明授权
    Examination of residues of data-conversions 失效
    检查数据转换的残留

    公开(公告)号：US06694344B1

    公开(公告)日：2004-02-17

    申请号：US09436851

    申请日：1999-11-09

    申请人： Guenter Gerwig ,  Juergen Haess ,  Michael Kroener ,  Erwin Pfeffer

    发明人： Guenter Gerwig ,  Juergen Haess ,  Michael Kroener ,  Erwin Pfeffer

    IPC分类号： G06F1100

    CPC分类号： G06F11/085 ,  G06F7/72 ,  H03M7/02

    摘要： A process is provided for monitoring the conversion of numerical values from a first to a second format, where before and after the conversion, the modulo residue of the corresponding numerical value is calculated and compared with the corresponding residue after the conversion. In this way it is possible to effect error-free monitoring of such a conversion, especially of computer data, without great hardware expenditure.

    摘要翻译： 提供了用于监视从第一格式到第二格式的数值的转换的过程，其中在转换之前和之后，计算相应数值的模余数并将其与转换后的相应残差进行比较。 以这种方式，可以在没有很好的硬件支出的情况下，对这种转换，特别是计算机数据进行无差错监视。

    Cationic urea/formaldehyde resins, their preparation and their use in the paper industry
    7.
    发明授权
    Cationic urea/formaldehyde resins, their preparation and their use in the paper industry 失效
    阳离子脲/甲醛树脂，其制备及其在造纸工业中的应用

    公开(公告)号：US5478656A

    公开(公告)日：1995-12-26

    申请号：US408408

    申请日：1995-03-22

    申请人： Klaus Flory ,  Andreas Stange ,  Michael Kroener ,  Norbert Sendhoff

    发明人： Klaus Flory ,  Andreas Stange ,  Michael Kroener ,  Norbert Sendhoff

    IPC分类号： C08G12/12 ,  C08G12/46 ,  D21H17/49 ,  D21H17/50 ,  B32B27/42

    CPC分类号： C08G12/46 ,  Y10T428/31949 ,  Y10T428/31964

    摘要： Cationic urea/formaldehyde resins are obtainable by condensing urea and formaldehyde in a molar ratio of from 1:1.5 to 1:3 in the presence of polymers which contain not less than 1 mol % of polymerized vinylamine units and have Fikentscher K values of from 5 to 300, in an amount of from 5 to 50 g per mole of urea in the end product, where the mixture is first a) precondensed at a pH of from 8 to 14, then acidified and b) condensed at a pH of from 1 to 5 until gel formation begins, c) then from 0.3 to 1.5 moles of formaldehyde are added per mole of urea used, d) post-condensation is carried out and e) the resin solution is subsequently neutralized. The resins thus obtained are used in papermaking as assistants for increasing the dry and wet strength of paper and result in less dulling of the whiteness of the paper.

    摘要翻译： 阳离子脲/甲醛树脂可以通过在含有不少于1摩尔％的聚合乙烯胺单元的聚合物存在下，以1:1.5至1:3的摩尔比冷凝脲和甲醛，并且具有5的Fikentscher K值 至300，其量为最终产物中每摩尔尿素5至50g，其中混合物首先a）在8至14的pH下预缩合，然后酸化并b）在pH为1时冷凝 至5，直到凝胶形成开始，c）然后每摩尔使用的尿素加入0.3至1.5摩尔的甲醛，d）进行后冷凝，e）随后中和树脂溶液。 由此获得的树脂用于造纸中作为助剂以增加纸张的干湿强度，并且导致纸的白度较少的钝化。

    Preparation of alpha-formylamino nitriles
    8.
    发明授权
    Preparation of alpha-formylamino nitriles 失效
    阿尔法 - 甲酰胺硝酸盐的制备

    公开(公告)号：US5077427A

    公开(公告)日：1991-12-31

    申请号：US627021

    申请日：1990-12-13

    申请人： Rolf Fikentscher ,  Michael Kroener

    发明人： Rolf Fikentscher ,  Michael Kroener

    IPC分类号： B01J31/02 ,  B01J31/04 ,  C07B61/00 ,  C07C253/30 ,  C07C255/29

    CPC分类号： C07C255/29

    摘要： A process for preparing .alpha.-formylamino nitriles of the formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or unsubstituted or substituted, with substituents which are inert under the reaction conditions, aliphatic or heteroaliphatic radicals with 1 to 10, cycloaliphatic or heterocycloaliphatic radicals with 3 to 6, araliphatic radicals with 7 to 12, heteroaraliphatic radicals with 4 to 12, aromatic radicals with 6 to 10 or heteroaromatic radicals with 3 to 10 carbon atoms, by reacting cyanohydrins of the formula II ##STR2## with the formamide III ##STR3## in the presence of acids, entails adding at least one ammonium salt to the reaction mixture.

    摘要翻译： 制备式I的α-甲酰氨基腈的方法，其中R 1和R 2各自为氢或未取代或取代的，具有在反应条件下为惰性的取代基，具有1至10个脂环族或杂环脂族基的脂族或杂脂族基团 具有3至6个具有7至12个芳基的基团，具有4至12个杂芳族脂族基团，具有6至10个芳族基团或具有3至10个碳原子的杂芳族基团的芳基，通过使式II II的氰醇与甲酰胺 在酸存在下III III需要向反应混合物中加入至少一种铵盐。