利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

96 条记录 (耗时 0.017 秒)

    Telemetry Coding and Surface Detection for a Mud Pulser
    1.
    发明申请
    Telemetry Coding and Surface Detection for a Mud Pulser 审中-公开
    泥浆机的遥测编码和表面检测

    公开(公告)号：US20140254322A1

    公开(公告)日：2014-09-11

    申请号：US14280339

    申请日：2014-05-16

    申请人： Schlumberger Technology Corporation

    发明人： Caimu Tang ,  Mark S. Beattie

    IPC分类号： E21B47/18

    CPC分类号： E21B47/18 ,  G01V1/003 ,  H03M7/08 ,  H03M7/30

    摘要： A method for receiving an encoded integer includes acquiring a digitized waveform including a first plurality of pulses distributed among a second plurality of time slots, locating each of the pulses in the digitized waveform, computing a confidence value for each of the pulses, selecting a subset of the plurality of pulses, the subset including pulses having low confidence values computed, generating a set of unique waveforms corresponding to various combinations of the subset of pulses selected, computing a cross-correlation between each of the waveforms generated and the digitized waveform acquired, and selecting the waveform having the highest cross-correlation computed.

    摘要翻译： 一种用于接收编码整数的方法，包括获取包括在第二多个时隙中分布的第一多个脉冲的数字化波形，将数字化波形中的每个脉冲定位，计算每个脉冲的置信度值，选择子集 所述子集包括计算的具有低置信度的脉冲，产生对应于所选择的脉冲子集的各种组合的一组唯一波形，计算所生成的每个波形和所获取的数字化波形之间的互相关， 并选择具有最高互相关计算的波形。

    Coverting a number from a first base to a second base
    2.
    发明授权
    Coverting a number from a first base to a second base 有权
    覆盖从第一个基地到第二个基地的数字

    公开(公告)号：US07707233B2

    公开(公告)日：2010-04-27

    申请号：US11133811

    申请日：2005-05-19

    申请人： Marius A. Cornea-Hasegan

    发明人： Marius A. Cornea-Hasegan

    IPC分类号： G06F15/00

    CPC分类号： H03M7/08 ,  H03M7/04

    摘要： A machine-implemented method converts a number from a first base to a second base. Each one of a first group of machine operation computes a product whose factors include the number in the first base, and a previously calculated approximation to a respective negative power of the second base. A second group of machine operations are performed, each one using results of the first operations, to obtain further results. A respective one or more digits of the number in the second base is also determined, using each of these further results. Other embodiments are also described and claimed.

    摘要翻译： 机器实现的方法将数字从第一基座转换为第二基座。 第一组机器操作中的每一个计算其因素包括第一基底中的数量和先前计算的与第二基底的相应负功率的近似值的乘积。 执行第二组机器操作，每个机器操作使用第一操作的结果来获得进一步的结果。 还使用这些其他结果中的每一个来确定第二基座中的数字的相应一个或多个数字。 还描述和要求保护其他实施例。

    Data compression method using multiple base number systems
    3.
    发明授权
    Data compression method using multiple base number systems 有权
    使用多个基数系统的数据压缩方法

    公开(公告)号：US06196466B1

    公开(公告)日：2001-03-06

    申请号：US09329191

    申请日：1999-06-09

    申请人： Frederick Schuessler

    发明人： Frederick Schuessler

    IPC分类号： G06K1906

    CPC分类号： H03M7/30 ,  H03M7/08

    摘要： A data compression method is defined, which achieves high efficiency when encoding source data drawn from two or more data subsets of differing sizes, and where these subsets are distributed throughout the source message. Methods for encoding and decoding these subsets are disclosed, and a typical bar coding application is described.

    摘要翻译： 定义了一种数据压缩方法，当对来自两个或更多个不同大小的数据子集的源数据进行编码时，这些数据压缩方法实现了高效率，并且这些子集分布在整个源消息中。 公开了对这些子集进行编码和解码的方法，并且描述了典型的条形码应用。

    Method and appartus for determining a precision of an intermediate arithmetic for converting values between a first numeric format and a second numeric format
    4.
    发明授权
    Method and appartus for determining a precision of an intermediate arithmetic for converting values between a first numeric format and a second numeric format 失效
    用于确定用于在第一数字格式和第二数字格式之间转换值的中间算术的精度的方法和装置

    公开(公告)号：US5652862A

    公开(公告)日：1997-07-29

    申请号：US523681

    申请日：1995-09-05

    申请人： Kenton L. Hanson

    发明人： Kenton L. Hanson

    IPC分类号： G06F7/48 ,  H03M7/08 ,  G06F7/38

    CPC分类号： G06F7/48 ,  H03M7/08 ,  G06F7/49957

    摘要： A method and apparatus for efficient allocation of temporary storage for performing accurate and correct numeric base conversions on a computer system is provided. Numeric base conversions are common because computers operate in binary whereas the values that are input into computers are based on a decimal system. A common source of error occurs when converted values are rounded. The intermediate arithmetic used to perform the conversion requires greater precision than the target floating point format. It is known that to always insure correctly rounded results, an extremely high precision intermediate arithmetic may be used. However, in many case this is a waste of system memory. To efficiently allocate system memory to this task, the most difficult rounding case is determined. The precision needed to correctly round the most difficult case is then derived. This information is then stored and subsequently used to allocate an efficient amount of storage whenever a numeric base conversion is to take place.

    摘要翻译： 提供了一种用于在计算机系统上执行准确和正确的数字转换的临时存储器的有效分配的方法和装置。 数字基础转换是常见的，因为计算机以二进制操作，而输入计算机的值基于十进制。 当转换值舍入时，会发生常见的错误来源。 用于执行转换的中间算法需要比目标浮点格式更高的精度。 众所周知，为了始终保证正确的圆形结果，可以使用极高精度的中间算术。 然而，在很多情况下，这是浪费系统内存。 为了有效地分配系统内存到这个任务，确定最困难的四舍五入的情况。 然后得出正确回答最困难情况所需的精度。 然后，当信息进行数字转换时，该信息将被存储并随后用于分配有效的存储量。

    Radix converter
    5.
    发明授权
    Radix converter 失效
    RADIX转换器

    公开(公告)号：US3688100A

    公开(公告)日：1972-08-29

    申请号：US3688100D

    申请日：1970-06-30

    申请人： GOLDSBERRY PAUL E

    发明人： GOLDSBERRY PAUL E

    IPC分类号： H03M7/08 ,  G06F5/02

    CPC分类号： H03M7/08

    摘要： Apparatus for converting a number in a first radix to a number in a second radix is disclosed. Conversion of a binary number to a decimal number is accomplished by adding the low order of the decimal value for each position or ordinal in the binary number which contains a one bit or a number descriptor. Carries in the addition are ignored and the sum forms the low order ordinal in the decimal equivalent of the binary number. The sum is subtracted from the binary number and it is divided by the radix of the output number or ten. The series of operations is repeated until the binary number has been completely converted.

    摘要翻译： 公开了用于将第一基数的数字转换为第二基数的装置。 将二进制数转换为十进制数通过在包含一位或数字描述符的二进制数中添加每个位置或序数的十进制值的低位来实现。 加法中的加法被忽略，并且和形成二进制数的十进制等效的低阶序数。 从二进制数减去和，除以输出数的基数或十。 重复一系列操作，直到二进制数被完全转换为止。