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1. 发明授权

US5489772A Variable optical sampling rate dependent on requested scan resolution 失效
标题翻译：可变光采样率取决于所要求的扫描分辨率
公开(公告)号：US5489772A
公开(公告)日：1996-02-06
申请号：US339107
申请日：1994-11-14
申请人： Steven L. Webb , Greg A. Degi
发明人： Steven L. Webb , Greg A. Degi
IPC分类号： H04N1/19 , G06T1/00 , H04N5/21 , H04N5/235 , H04N5/353 , H01L27/00
CPC分类号： H04N5/2353 , H04N5/335
摘要： A method of determining an exposure time for a photosensor based on a desired resolution along a scan direction and a desired resolution in a cross direction may comprise the steps of determining an initial exposure time based on the desired resolution in the cross direction; determining a minimum resolution in the scan direction based on the initial exposure time; comparing the minimum resolution in the scan direction to the desired resolution in the scan direction; and increasing the initial exposure time if the minimum resolution in the scan direction is greater than the desired resolution in the scan direction.
摘要翻译：基于沿着扫描方向的期望分辨率和期望的横向分辨率确定光传感器的曝光时间的方法可以包括以下步骤：基于所述横向上的所需分辨率来确定初始曝光时间; 基于初始曝光时间确定扫描方向上的最小分辨率; 将扫描方向上的最小分辨率与扫描方向上的期望分辨率进行比较; 并且如果扫描方向上的最小分辨率大于扫描方向上的期望分辨率，则增加初始曝光时间。

2. 发明授权

US5479207A System and method for improving the signal to noise ratio of a CCD sensor in an optical scanner 失效
标题翻译：用于提高光学扫描仪中CCD传感器的信噪比的系统和方法
公开(公告)号：US5479207A
公开(公告)日：1995-12-26
申请号：US196617
申请日：1994-02-14
申请人： Greg A. Degi , Gerald L. Meyer , Steven L. Webb
发明人： Greg A. Degi , Gerald L. Meyer , Steven L. Webb
IPC分类号： H04N1/028 , H04N1/19 , H04N1/40 , H04N1/401 , H04N5/235 , H04N5/369 , H04N5/372 , H04N3/14
CPC分类号： H04N5/3692 , H04N1/40056 , H04N1/401 , H04N5/2353 , H04N5/372
摘要： A system and method for improving the signal to noise ratio of a CCD sensor within an optical scanner varies the exposure time of the CCD sensor. Exposure time is varied by clocking the CCD sensor a number of times equal to the number of pixels in the CCD sensor plus an additional number of clock cycles to create a delay. The additional exposure time maximizes the magnitudes of the charges produced by the CCD sensor. The required delay is computed during a pre-scan calibration step.
摘要翻译：用于提高光学扫描仪内的CCD传感器的信噪比的系统和方法改变了CCD传感器的曝光时间。通过将CCD传感器计时等于CCD传感器中的像素数量以及附加数量的时钟周期来创建延迟，来改变曝光时间。额外的曝光时间使CCD传感器产生的电荷的大小最大化。在预扫描校准步骤期间计算所需的延迟。

3. 发明授权

US5201014A Method and apparatus for establishing threshold level in a binary mode document scanner 失效
标题翻译：用于在二进制模式文档扫描器中建立阈值水平的方法和装置
公开(公告)号：US5201014A
公开(公告)日：1993-04-06
申请号：US835008
申请日：1992-02-12
申请人： Greg A. Degi , Graig L. Miller , Irene F. Stein
发明人： Greg A. Degi , Graig L. Miller , Irene F. Stein
IPC分类号： H04N1/403
CPC分类号： H04N1/403
摘要： In a document scanner that is operating in the binary mode, the magnitude of the signal that is generated for each picture element (PEL) of each document scan line is compared to the magnitude of a threshold signal. Either a binary 0 or a binary 1 is generated as a result of this comparison. The threshold signal magnitude is dynamically established by a method and an apparatus that provides a stored history or histogram of the various signal magnitudes that are generated for each PEL of a plurality of the document scan lines. Since the signal magnitude(s) that is provided by scanning the background, non-image, area of the document occurs the majority of the time within this histogram, the magnitude of this majority signal(s) is used to set the threshold signal magnitude. As a result, the PELS of the document's visible image are converted to a binary electronic image with a minimum loss of visual image content. The threshold signal magnitude is continuously established in this manner during the scanning of a document.
摘要翻译：在以二进制模式操作的文档扫描仪中，将每个文档扫描行的每个图像元素（PEL）生成的信号幅度与阈值信号的大小进行比较。作为该比较的结果，生成二进制0或二进制1。通过提供为多个文档扫描线的每个PEL生成的各种信号幅度的存储历史或直方图的方法和装置来动态建立阈值信号幅度。由于通过扫描背景而提供的信号幅度，文档的非图像区域在该直方图的大部分时间内出现，所以多数信号的幅度用于设置阈值信号幅度。结果，文件的可见图像的PELS被转换成具有最小的视觉图像内容损失的二进制电子图像。在扫描文档期间以这种方式连续建立阈值信号幅度。

4. 发明授权

US5461491A Procedure for reducing processing time for image elements by combining charge of adjacent pixels into a new composite pixel 失效
标题翻译：通过将相邻像素的电荷组合成新的复合像素来减少图像元素的处理时间的步骤
公开(公告)号：US5461491A
公开(公告)日：1995-10-24
申请号：US174868
申请日：1993-12-29
申请人： Greg A. Degi
发明人： Greg A. Degi
IPC分类号： H04N1/028 , H04N1/04 , H04N1/19 , H04N1/193 , H04N1/40 , H04N5/353 , H04N5/372
CPC分类号： H04N1/40 , H04N1/0402 , H04N1/0411 , H04N5/23245 , H04N5/347 , H04N5/353 , H04N5/378 , H04N1/193
摘要： The present invention improves the scanning speed (i.e., the line exposure time) of an image scanner that is operated at a lower than normal resolution. The image scanner contains a charge coupled device (CCD) that stores a plurality of pixel charges. Before digitizing the pixel charges, the present invention combines two or more of these pixel charges. Thus, the effective resolution of the CCD can be divided by a designated amount, thus reducing processing time and keeping signal levels nearly constant.
摘要翻译：本发明提供了以低于正常分辨率操作的图像扫描仪的扫描速度（即，线曝光时间）。图像扫描器包含存储多个像素电荷的电荷耦合器件（CCD）。在数字化像素电荷之前，本发明组合了这些像素电荷中的两个或更多个。因此，CCD的有效分辨率可以除以指定量，从而减少处理时间并保持信号水平几乎恒定。

5. 发明授权

US5406066A Method and apparatus for correcting color registration error 失效
标题翻译：用于校正颜色配准误差的方法和装置
公开(公告)号：US5406066A
公开(公告)日：1995-04-11
申请号：US88017
申请日：1993-07-06
申请人： Michael J. Steinle , Greg A. Degi
发明人： Michael J. Steinle , Greg A. Degi
IPC分类号： H04N1/028 , H04N1/48 , H01J40/14
CPC分类号： H04N1/488
摘要： A photosensor device which comprises a first photosensor array having a first predetermined number of pixels for generating a first data signal indicative of a first color component image of an object which is imaged thereon; a second photosensor array having a second predetermined number of pixels for generating a second data signal indicative of a second color component image of the object which is imaged thereon; and color registration error correction means operatively associated with the photosensor array for correcting color registration error due to a predetermined difference in image size between the first color component image and the second color component image.
摘要翻译：一种光传感器装置，其包括具有第一预定数量的像素的第一光传感器阵列，用于产生指示其上成像的物体的第一颜色分量图像的第一数据信号; 第二光传感器阵列，具有第二预定数量的像素，用于产生指示被成像在其上的物体的第二颜色分量图像的第二数据信号; 以及与光传感器阵列可操作地相关联的颜色配准误差校正装置，用于由于第一颜色分量图像和第二颜色分量图像之间的图像尺寸的预定差异来校正颜色配准误差。

6. 发明授权

US06542260B1 Multiple image scanner 失效
标题翻译：多图像扫描仪
公开(公告)号：US06542260B1
公开(公告)日：2003-04-01
申请号：US08959604
申请日：1997-10-28
申请人： Robert G. Gann , Steven L. Webb , Greg A. Degi , Gregory A. Brake , Kevin J. Youngers , Dan S. Johnson
发明人： Robert G. Gann , Steven L. Webb , Greg A. Degi , Gregory A. Brake , Kevin J. Youngers , Dan S. Johnson
IPC分类号： H04N140
CPC分类号： H04N1/642 , H04N1/46 , H04N1/486
摘要： A multiple image scanner that performs a single scan of a document containing different types of images (e.g., text and graphics) and sends multiple renditions of the same document from the scanner to a host computer (e.g., one high resolution gray scale image and one low resolution high bit depth color image; or one high resolution, low bit depth gray scale or monochrome image and one low resolution, high bit depth gray scale or monochrome image; or one high resolution, low bit depth color image and one low resolution, high bit depth color image), thus greatly reducing the total amount of data sent to and processed by the host computer.
摘要翻译：执行对包含不同类型图像（例如，文本和图形）的文档的单次扫描并且将相同文档的多个再现从扫描器发送到主计算机的多图像扫描器（例如，一个高分辨率灰度图像和一个低分辨率高位深度彩色图像;或一个高分辨率，低位深度灰度级或单色图像和一个低分辨率，高位深度灰阶或单色图像;或一个高分辨率，低位深度彩色图像和一个低分辨率，高位深度彩色图像），从而大大减少了主计算机发送和处理的数据总量。

7. 发明授权

US5958033A On- the-fly partitionable computer bus for enhanced operation with varying bus clock frequencies 失效
标题翻译：实时可分割计算机总线，用于增强操作，具有变化的总线时钟频率
公开(公告)号：US5958033A
公开(公告)日：1999-09-28
申请号：US910278
申请日：1997-08-13
申请人： Michael Schubert , Samuel M. Babb , Greg A. Degi
发明人： Michael Schubert , Samuel M. Babb , Greg A. Degi
IPC分类号： G06F13/36 , G06F1/08 , G06F13/42 , G06F13/00 , G06F13/40 , H04Q3/52
CPC分类号： G06F1/08 , G06F13/4217
摘要： Method and apparatus for controlling a computer bus having first and second bus slots and operable with a bus controller at first and second data transfer rates. When the computer bus is operating at the first data transfer rate, the bus is partitioned so that the address/data pins of the bus controller are coupled to the address/data pins of both of the first and second bus slots, and the control pins of the bus controller are coupled only to the control pins of the second bus slot. When the computer bus is operating at the second data transfer rate, the bus is partitioned so that the address/data pins of the bus controller are coupled only to the address/data pins of the first bus slot, and the control pins of the bus controller are coupled only to the control pins of the first bus slot. The second data transfer rate may be faster than the first data transfer rate.
摘要翻译：用于控制具有第一和第二总线插槽的计算机总线的方法和装置，并且可以以总线控制器在第一和第二数据传输速率下操作。当计算机总线以第一数据传输速率运行时，总线被分区，使得总线控制器的地址/数据引脚耦合到第一和第二总线插槽的地址/数据引脚，并且控制引脚总线控制器仅耦合到第二总线插槽的控制引脚。当计算机总线以第二数据传输速率运行时，总线被分区，使得总线控制器的地址/数据引脚仅耦合到第一总线插槽的地址/数据引脚，总线的控制引脚控制器仅耦合到第一总线插槽的控制引脚。第二数据传输速率可能比第一数据传输速率更快。

8. 发明授权

US5719965A Higher precision look-up table from lower precision look-up table for improved tonal adjustment 失效
标题翻译：更精确的查找表，从低精度查找表，以改善色调调整
公开(公告)号：US5719965A
公开(公告)日：1998-02-17
申请号：US354564
申请日：1994-12-13
申请人： Greg A. Degi , Robert G. Gann , Steven L. Webb
发明人： Greg A. Degi , Robert G. Gann , Steven L. Webb
IPC分类号： G09G5/36 , G06T1/00 , G06T1/20 , G06T5/00 , G09G5/00 , G09G5/06 , H04N1/407 , H04N1/46 , H04N1/60 , G06K9/40 , G03B3/00
CPC分类号： H04N1/407
摘要： An image capture system comprising a scanner having a 10-bit analog-to-digital converter. The scanner operates within an environment that includes a host computer that is configured to accept 8-bit data. The contrast enhancement of the scanner is improved by applying an improved tonal adjustment on a scanned image. The host computer connected to the scanner provides an 256-value to 256-value look-up table (i.e., the 8-bit tone map) to the scanner. The scanner generates an interpolated 1024-level to 256-level look-up table (i.e., a 10-bit tone map) from the 256-level to 256-level look-up table. The 1024-value to 256-value look-up table is generated by using linear interpolation and extrapolation. The scanner can thus provide better contrast enhancements without having to modify the software running on the host computer.
摘要翻译：一种包括具有10位模数转换器的扫描器的图像捕获系统。扫描仪在包括配置为接受8位数据的主机的环境中运行。通过在扫描图像上应用改进的色调调整来提高扫描仪的对比度增强。连接到扫描器的主计算机向扫描仪提供256值到256值的查找表（即8位色调图）。扫描仪从256级到256级查找表生成内插的1024级至256级查找表（即，10位色调映射）。通过使用线性插值和外推来生成1024值到256值的查找表。因此，扫描仪可以提供更好的对比度增强，而无需修改在主机上运行的软件。

9. 发明授权

US5654809A Method and apparatus for dynamic white point adjustment 失效
标题翻译：用于动态白点调整的方法和装置
公开(公告)号：US5654809A
公开(公告)日：1997-08-05
申请号：US594192
申请日：1996-01-31
申请人： Edward S. Beeman , Steven L. Webb , Michael J. Steinle , Robert G. Gann , Brian L. Hastings , Greg A. Degi
发明人： Edward S. Beeman , Steven L. Webb , Michael J. Steinle , Robert G. Gann , Brian L. Hastings , Greg A. Degi
IPC分类号： H04N1/028 , H04N1/04 , H04N1/40 , H04N1/48 , H04N9/04
CPC分类号： H04N1/40056 , H04N1/482
摘要： A method for dynamically determining and adjusting the color balance of the light strip along one edge of the scanned area and adjusting the gains of independently controlled red, green and blue channels of a CCD array. Alternatively, the gain of one color channel may be held constant and measured to determine the light intensity of the light source as the temperature of the light source varies. The power to the light is then changed to maintain the intensity of the light source within a predetermined range. The three color channels are then compared to a predetermined color balance. If the color balance is outside of a predetermined range, the other two color channels gains are varied in order to maintain the color balance between the three color channels.
摘要翻译：一种用于动态地确定和调整沿着扫描区域的一个边缘的光条的颜色平衡并调整CCD阵列的独立控制的红色，绿色和蓝色通道的增益的方法。或者，一个颜色通道的增益可以保持恒定并且被测量以确定随着光源的温度变化的光源的光强度。然后改变光的功率以将光源的强度保持在预定范围内。然后将三个颜色通道与预定的颜色平衡进行比较。如果颜色平衡超出预定范围，则为了保持三个颜色通道之间的颜色平衡，改变另外两个颜色通道增益。

10. 发明授权

US5561725A Image processing method and apparatus 失效
标题翻译：图像处理方法和装置
公开(公告)号：US5561725A
公开(公告)日：1996-10-01
申请号：US239016
申请日：1994-05-06
申请人： Greg A. Degi , Edward S. Beeman , David W. Boyd
发明人： Greg A. Degi , Edward S. Beeman , David W. Boyd
IPC分类号： H04N1/387 , G06T3/40 , G09G5/00 , G09G5/36 , G09G5/391 , G06K9/42
CPC分类号： G06T3/4023
摘要： An image processing method for converting an input matrix into an output matrix including steps of calculating an increment value and a target value based upon the resolution of the input matrix and the resolution of the output matrix. As each picture element of the input matrix is received the increment value is added to the value of a counter. When the value of the counter is greater than the target value, the received picture element is placed into the output matrix and the target value is subtracted from the value of the counter.
摘要翻译：一种用于将输入矩阵转换为输出矩阵的图像处理方法，包括基于输入矩阵的分辨率和输出矩阵的分辨率来计算增量值和目标值的步骤。当接收到输入矩阵的每一个像素时，增量值被加到一个计数器的值上。当计数器的值大于目标值时，将接收到的像素放入输出矩阵中，并从计数器的值中减去目标值。

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