公开(公告)号：US20030099004A1

公开(公告)日：2003-05-29

申请号：US09990291

申请日：2001-11-23

Applicant: UMAX DATA SYSTEMS INC.

Inventor： Chui-Kuei Chiu

IPC: H04N001/04

CPC classification number: H04N1/00 ,  H04N1/00129 ,  H04N1/0096 ,  H04N2201/0093

Abstract: An image apparatus with batch scan and real time display and a method of the same are provided. The method of the present invention comprises steps of utilizing a transmission device for transmitting pictures into the scanner sequentially, scanning a picture and storing digital data in memory, displaying a notify signal to notice the user simultaneously while the scan is finished, showing the scanned image in a display device and scanning next picture at the same time while the user changes a switch control device. It is provided for shortening the scanning time of an image and reducing the time of waiting by utilizing the ways of batch scan and real time display. The present invention can increase number and size of picture to be scanned and thereby promote the scanning efficiency without requiring the increase in size of a memory buffer.

公开(公告)号：US20030081839A1

公开(公告)日：2003-05-01

申请号：US09984902

申请日：2001-10-31

Applicant: UMAX DATA SYSTEMS INC.

Inventor： Wen-Chao Tseng

IPC: G06K009/36 ,  G06K009/46

CPC classification number: H04N19/90 ,  G06T9/004

Abstract: The present invention relates to a method for compressing an image data in real time. At first, the present invention divides an image, which is got after a pre-scanning process, into plural lines. Each line is divide into several blocks, whose sizes are the same. Each block comprises plural pixel values. A pixel value of a block is saved in the buffer completely to become the first datum. The pixel value is usually the minimum pixel value. Then plural differences, which are between the first datum and the plural pixel values of the block, are calculated. One of the plural differences, which are not equal to zero, is saved in the buffer completely to become the second datum. The difference, which is not equal to zero, is usually a minimum difference. Using the second datum to be a divisor and using the plural differences to be dividends will get plural specific values of plural differences to the second datum. When the first number, which is after a dot, of the specific value is greater than a fixed value or equal to the fixed value, it will be carried to the first number, which is in front of the dot and numbers, which are after the dot, are deleted. When the first number, which is after a dot, of the specific value is lower than a fixed value, numbers, which are after the dot, are deleted. This method will make the specific values become integers. At last, the plural specific values are saved in the buffer completely to become the plural third data and the compression procedure of the block is finished. Then the next block is compressed by the same procedure.

Abstract translation: 本发明涉及实时压缩图像数据的方法。 首先，本发明将在预扫描处理之后获得的图像分成多行。 每行分为几个块，其大小相同。 每个块包括多个像素值。 块的像素值被完全保存在缓冲区中，成为第一个数据。 像素值通常是最小像素值。 然后，计算块的第一基准和多个像素值之间的多个差。 不等于零的复数差异之一完全保存在缓冲区中，成为第二个基准。 不等于零的差异通常是最小差异。 使用第二基准作为除数并使用多个差异作为股息将获得与第二基准的多个特定值的多个差异。 当特定值之后的点之后的第一个数字大于固定值或等于固定值时，将被携带到位于点之前的第一个数字，后面是点数和数字 该点被删除。 当特定值之后的点之后的第一个数字低于固定值时，在点之后的数字被删除。 该方法将使特定值成为整数。 最后，将多个特定值完全保存在缓冲器中，成为多个第三数据，并且块的压缩过程结束。 然后通过相同的过程压缩下一个块。

公开(公告)号：US20030063023A1

公开(公告)日：2003-04-03

申请号：US09968005

申请日：2001-10-02

Applicant: UMAX DATA SYSTEMS INC.

Inventor： Chun-Jen Chen ,  Shih-Huang Chen

IPC: H03M001/66

CPC classification number: H02P8/14 ,  H02P8/12

Abstract: An apparatus and a method for controlling a stepping motor are provided. The apparatus comprises a control circuit and a driving device. The control circuit is used to receive a set of input signals in digital form and output an analog signal with a predetermined voltage level equivalent to the set of the input signals in digital form. The driving device with a power source receives the analog signal to serve as a reference voltage and provides a driving current to a stepping motor. The driving current is determined by the analog signal.

Abstract translation: 提供了一种用于控制步进电动机的装置和方法。 该装置包括控制电路和驱动装置。 控制电路用于以数字形式接收一组输入信号，并且以数字形式输出具有与该组输入信号相当的预定电压电平的模拟信号。 具有电源的驱动装置接收模拟信号作为参考电压，并向步进电机提供驱动电流。 驱动电流由模拟信号决定。

公开(公告)号：US20020158274A1

公开(公告)日：2002-10-31

申请号：US09840897

申请日：2001-04-25

Applicant: UMAX DATA SYSTEMS INC.

Inventor： Yin-Chun Huang ,  Chih-Wen Huang

IPC: H01L027/148

CPC classification number: H01L27/14806

Abstract: A charge coupled device (CCD) with multi-focus lengths is provided. The arrays of optical sensors with a plurality of transparent plates in parallel disposed thereon are disposed on a substrate. By way of either of changing the thicknesses of the transparent plates and changing the position levels of the arrays of the optical sensors, each of the arrays of the optical sensors obtains a different focal length. And thus, the depth of focus of the present charge coupled device is improved.

Abstract translation: 提供了具有多焦距的电荷耦合器件（CCD）。 具有平行设置在其上的多个透明板的光学传感器阵列设置在基板上。 通过改变透明板的厚度和改变光学传感器的阵列的位置水平，光学传感器的每个阵列获得不同的焦距。 因此，本电荷耦合器件的焦点深度得到改善。

公开(公告)号：US20020154340A1

公开(公告)日：2002-10-24

申请号：US09839211

申请日：2001-04-23

Applicant: UMAX DATA SYSTEMS INC.

Inventor： Chui-Kuei Chiu

IPC: B41J001/00 ,  G06F015/00

CPC classification number: G06F1/0356 ,  G06T5/009 ,  H04N1/407

Abstract: The present invention provides a mapping method and apparatus of look-up table in an imaging system. The mapping method implemented by the apparatus comprises receiving a digital signal having a high-bit portion and a low-bit portion. The high-bit portion of the digital signal is subjected to a curve table for look-up mapping to get a high-bit signal. The partial high-bit portion is subjected to a slope table for getting a factor. The low-bit portion of the digital signal is calculated with the factor to get a low-bit signal. The high-bit signal is combined with the low-bit signal to get an output signal. The curve table and slope curve can reduce the memory usage of the imaging system.

Abstract translation: 本发明提供了一种成像系统中的查找表的映射方法和装置。 由该装置实现的映射方法包括接收具有高位部分和低位部分的数字信号。 数字信号的高位部分经受用于查找映射的曲线表以获得高位信号。 部分高位部分经受用于获得因子的斜率表。 数字信号的低位部分用因子来计算得到低位信号。 高位信号与低位信号组合以获得输出信号。 曲线表和斜率曲线可以减少成像系统的内存使用量。