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    • 3. 发明授权
    • Data communication system according to a packet-switching principle
    • 数据通信系统根据分组交换原理
    • US07319697B2
    • 2008-01-15
    • US10321201
    • 2002-12-17
    • Marc DurantonLaurent PasquierValerie RivierreQin Zhao
    • Marc DurantonLaurent PasquierValerie RivierreQin Zhao
    • H04L12/28H04L12/56
    • H04L69/04H04L29/06H04L69/22
    • The present invention relates to a communicating data system comprising devices (11, 12, 13, 14) for routing said data that are interconnected by communication links, the data being transmitted in packets and a packet comprising a header. A transmitting part of a first routing device (12) comprises first storage means suitable for storing a value of at least one parameter from said header and for transmitting a coded value corresponding thereto, and first entropy coding compression means which are suitable for recoding the uncoded value, the recoded value being stored instead of the coded value after the latter is transmitted along a communication link (15). A receiving part of a second routing device (13), that is connected to the first routing device by the communication link, comprises second storage means suitable for storing the coded value coming from the communication link (15) and for transmitting the uncoded value corresponding thereto, and second entropy coding compression means which are suitable for recoding the uncoded value, the recoded value being stored instead of the coded value.
    • 通信数据系统技术领域本发明涉及一种通信数据系统,其包括用于路由通过通信链路互连的所述数据的装置(11,12,13,14),所述数据以分组方式发送,以及包括报头的分组。 第一路由设备(12)的发送部分包括适于存储来自所述报头的至少一个参数的值并用于发送与其对应的编码值的第一存储装置,以及适于重新编码未编码的第一熵编码压缩装置 值,在沿着通信链路(15)发送后,重新编码的值被存储而不是编码值。 通过通信链路连接到第一路由设备的第二路由设备(13)的接收部分包括适于存储来自通信链路(15)的编码值的第二存储装置,并且用于发送对应的未编码值 以及适于重新编码未编码值的第二熵编码压缩装置,代替编码值存储重新编码的值。
    • 7. 发明授权
    • Digital sampling frequency converter
    • 数字采样变频器
    • US07126503B2
    • 2006-10-24
    • US10539197
    • 2003-12-05
    • Laurent PasquierMarc DurantonQin Zhao
    • Laurent PasquierMarc DurantonQin Zhao
    • H03M7/00
    • H03H17/0275H03H17/0294H03H17/0685
    • The present invention relates to a converter converting an input digital signal into an output digital signal. Said converter comprises in particular a set of shift registers able to contain samples of the input or output digital signal. It also comprises a calculation unit able to supply a shift signal (4) to said set of registers. Said calculation unit comprises a first storage unit (51) able to contain a value of a conversion ratio or of its inverse, so that the value stored is between 0 and 1. It also comprises a second storage unit (52) able to contain, at a cycle time i+1, i being an integer, a future signal (8) equal to a sum of a current signal (7) contained in the second unit at a cycle time i and of the content of the first storage unit. The shift signal then results from an exclusive OR function (54) between a most significant bit of the current signal (71) and a most significant bit of the future signal (81).
    • 本发明涉及将输入数字信号转换为输出数字信号的转换器。 所述转换器特别包括能够包含输入或输出数字信号的采样的一组移位寄存器。 它还包括能够向所述寄存器组提供移位信号(4)的计算单元。 所述计算单元包括能够包含转换比值或其逆的第一存储单元(51),使得存储的值在0和1之间。它还包括第二存储单元(52) 在周期时间i + 1,i是整数,等于在循环时间i包含在第二单元中的当前信号(7)和第一存储单元的内容之和的未来信号(8)。 然后,移位信号由当前信号(71)的最高有效位和未来信号(81)的最高有效位之间的异或功能(54)产生。
    • 8. 发明申请
    • Method and system for filling in a parallelogram
    • 填充平行四边形的方法和系统
    • US20060221079A1
    • 2006-10-05
    • US10554013
    • 2004-04-15
    • Qin ZhaoLaurent PasquierMarc Duranton
    • Qin ZhaoLaurent PasquierMarc Duranton
    • G06T11/20
    • G06T11/40
    • The invention relates to a method of tracing and filling in a parallelogram (ABCD), comprising a first vertex (A), a second vertex (B), a third vertex (C) and a fourth vertex (D) on a discrete grid of a graphics screen from knowledge of the coordinates of its vertices. The method according to the invention comprises a step (10) of calculating the coordinates of the points on a first segment (AB) between the first vertex (A) and the second vertex (B), a step (11) of calculating the coordinates of the points on a second segment (AC) between the first vertex (A) and the third vertex (C), a step (12) of calculating the coordinates of the points on a third segment (BD) between the second vertex (BD) and the fourth vertex D and an iterative step (20) of calculating the coordinates of the points on a segment parallel to the segment AB and included within the parallelogram ABCD. Advantageously, the steps of calculating coordinates of the points on a segment use a so-called mid-point algorithm or Bresenham's algorithm.
    • 本发明涉及一种跟踪和填充平行四边形(ABCD)的方法,包括在离散网格上的第一顶点(A),第二顶点(B),第三顶点(C)和第四顶点(D) 从其顶点的坐标知识的图形屏幕。 根据本发明的方法包括:计算第一顶点(A)和第二顶点(B)之间的第一段(AB)上的点的坐标的步骤(10);计算坐标 在第一顶点(A)和第三顶点(C)之间的第二段(AC)上的点的第二顶点(BD)之间的第三段(BD)上的点的坐标的步骤(12) )和第四顶点D以及迭代步骤(20),其计算平行于段AB且包括在平行四边形ABCD内的段上的点的坐标。 有利地,计算段上的点的坐标的步骤使用所谓的中点算法或Bresenham算法。