公开(公告)号：US20040010532A1

公开(公告)日：2004-01-15

申请号：US10191214

申请日：2002-07-09

Applicant: Silicon Integrated Systems Corp.

Inventor： Chung-Yen Lu

IPC: G06F007/38

CPC classification number: G06F7/483

Abstract: An apparatus for computing a logarithm to a base p of a floating-point number X. The floating-point number X is represented in the format of (null1)Sxnull2ExnullMx, where Mxnull(1nullfx)null(1nullAxnull2nullK)null(Bxnull2nullN), where Sx is a sign, Ex is an exponent, Mx is a mantissa, 1nullMx

Abstract translation: 用于计算浮点数X的基数p的对数的装置。浮点数X以（-1） .2 .Mx的格式表示，其中Mx =（1 + fx）=（1 + Ax.2 <-K>）+（Bx.2 <-N>），其中Sx是符号，Ex是指数，Mx是尾数，1 <= Mx <2，Fx 是N位分数，Ax是fx的最高K位的值，Bx是fx，0 <= K

公开(公告)号：US20040010531A1

公开(公告)日：2004-01-15

申请号：US10191168

申请日：2002-07-09

Applicant: Silicon Integrated Systems Corp.

Inventor： Chung-Yen Lu ,  Kuo-Wei Yeh

IPC: G06F007/44

CPC classification number: G06F1/0356 ,  G06F7/483 ,  G06F7/556 ,  G06F2101/10

Abstract: An apparatus for calculating an exponential calculating result for a base 2 floating-point number comprises a transforming device, K exponential tables and a multiplier. The transforming device receives the floating-point number, transforms the floating-point number to an integer part and a fractional part and outputs the integer part and the fractional part. The fractional part is an N-bit number and divided into K parts which have N1, N2, . . . , NK bits respectively, wherein NnullN1nullN2null . . . nullNK. Each of the exponential tables receives one of the K parts divided from the fractional part and outputs a result. The multiplier receives all results from the exponential tables and outputs a mantissa. The integer part outputted form the transforming device is an exponent. The mantissa, the exponent and a sign whose value is 0 is used to represent an exponential calculating result which is represented in the following format: (null1)Synull2Eynullmy, where Sy is the sign whose value is 0, Ey is the integer part, my is the mantissa and lnullmy

Abstract translation: 用于计算基本2浮点数的指数计算结果的装置包括变换装置，K个指数表和乘数。 变换设备接收浮点数，将浮点数转换为整数部分和小数部分，并输出整数部分和小数部分。 小数部分是N位数，并分为具有N1，N2的K个部分。 。 。 ，NK位，其中N = N1 + N2 +。 。 。 + NK。 每个指数表接收从小数部分中分离的K个部分中的一个，并输出结果。 乘数从指数表接收所有结果并输出尾数。 从变换装置输出的整数部分是指数。 尾数，指数和值为0的符号用于表示以下格式表示的指数计算结果：（-1） .2 .my，其中Sy是其值的符号 是0，Ey是整数部分，我是尾数，l <= My <2。

公开(公告)号：US20030169258A1

公开(公告)日：2003-09-11

申请号：US10191159

申请日：2002-07-09

Applicant: Silicon Integrated Systems Corp.

Inventor： Chung-Yen Lu ,  Jo-Tan Yao

IPC: G06T011/20

CPC classification number: G06T11/203

Abstract: A fast line drawing method. First, the coordinates of two end points are received and a current point is assigned to one of the end points. The differences of x and y coordinates (nullx and nully) and the sum of error E are computed, the integer part of nullx over nully is denoted as Q. The current point is checked to determine whether it has reached the end point. If not and the value of E is negative, a point at the current point is drawn. The y-coordinate of the current point and E are updated by (Ynull1) and (Enull2nullx) respectively if E is non-negative, a span of pixels from (X,Y) to (XnullQ-1,Y) are drawn if the coordinate of last of Q points is less than the end point. Otherwise, a span of pixels from (X,Y) to (x2,Y) are drawn.

Abstract translation: 快速线条画法。 首先，接收两个端点的坐标，并将一个当前点分配给一个端点。 计算x和y坐标（DELTAx和DELTAy）的差异和误差E的总和，DELTAx的DELTAx的整数部分表示为Q.检查当前点以确定其是否已到达终点。 如果不是，并且E的值为负，则绘制当前点的点。 如果E是非负的，分别从（X，Y）到（X + Q-1）的像素的跨度，分别更新当前点和E的y坐标（Y + 1）和（E-2DELTAx） 如果Q点的最后坐标小于终点，则绘制Y）。 否则，绘制从（X，Y）到（x2，Y）的像素跨度。

公开(公告)号：US20030063100A1

公开(公告)日：2003-04-03

申请号：US09964808

申请日：2001-09-28

Applicant: SILICON INTEGRATED SYSTEMS CORP.,

Inventor： Hai-Wei Wang ,  Chung-Yen Lu

IPC: G09G005/02

CPC classification number: H04N1/64 ,  H04N19/184 ,  H04N19/90

Abstract: A method for converting N-bit image data of a digital image into M-bit image data, in which NnullMnullK, K>0, is disclosed. The method is adapted to be used for dithering in an image processing system or a computer graphic system. For example, an N-bit red color value of each pixel of the digital image can be converted into an M-bit red color value by this method with little or no color deviation. According to the method, a difference of the most significant n bits and the least significant n bits of the N-bit image data of a pixel is used as a preliminary criterion for color value conversion, in which n is preferably equal to K. An apparatus for converting N-bit image data of a digital image into M-bit image data, in which NnullMnullK, K>0, is also disclosed. The apparatus includes a subtraction operator for realizing the difference of the most significant n bits and the least significant n bits of the N-bit image data of the pixel.

Abstract translation: 公开了一种将数字图像的N位图像数据转换成M位图像数据的方法，其中N-M = K，K> 0。 该方法适用于图像处理系统或计算机图形系统中的抖动。 例如，数字图像的每个像素的N位红色值可以通过该方法被很少或没有颜色偏差转换成M位红色值。 根据该方法，使用像素的N位图像数据的最高有效n位和最低有效n位的差作为颜色值转换的初步准则，其中n优选地等于K. 还公开了将数字图像的N位图像数据转换为M = K，K> 0的M位图像数据的装置。 该装置包括用于实现像素的N位图像数据的最高有效n位和最低有效n位的差的减法运算器。

公开(公告)号：US20040189866A1

公开(公告)日：2004-09-30

申请号：US10396781

申请日：2003-03-26

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Wen-Kuo Lin ,  Chung-Yen Lu

IPC: H04N007/01

CPC classification number: H04N5/144 ,  H04N7/012 ,  H04N7/0137

Abstract: A method for motion pixel detection with a static counter map so as to correctly evaluate whether a missing pixel is in a static region or a non-static region, thereby reconstructing the missing pixel by an inter-field interpolation process or an intra-field interpolation process, respectively.

Abstract translation: 一种利用静态计数器映射图进行运动像素检测的方法，以便正确评估缺失像素是在静态区域还是非静态区域，从而通过场间插值处理或场内插值来重建缺失像素 过程。

公开(公告)号：US20040208384A1

公开(公告)日：2004-10-21

申请号：US10418198

申请日：2003-04-18

Applicant: SILICON INTEGRATED SYSTEMS CORP.

Inventor： Wen-Kuo Lin ,  Chung-Yen Lu

IPC: G06K009/40 ,  G06K009/32

CPC classification number: H04N7/012 ,  H04N7/0137 ,  H04N7/0142

Abstract: A method for motion pixel detection with adaptive thresholds, according to the global motion information among the reference video fields, so as to correctly evaluate whether a missing pixel is in a static region or a non-static region, thereby reconstructing the missing pixel by an inter-field interpolation process or an intra-field interpolation process. If the amount of motion among the reference fields is large, there is high motion information among the reference fields, so the threshold is set to be small; if the amount is small, there is less motion information between the reference fields, and so the threshold should be set to be large.

Abstract translation: 一种根据参考视频场中的全局运动信息的具有自适应阈值的运动像素检测的方法，以便正确地评估缺失像素是在静态区域还是非静态区域中，从而通过以下方式重建缺失像素： 场间插值处理或场内插值处理。 如果参考场之间的运动量大，则在参考场中存在高运动信息，所以阈值被设定得很小; 如果量少，则参考场之间的运动信息较少，因此阈值应该设置得很大。