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1. 发明授权

US5144455A Method and apparatus for locating the document referencing corner in a document scanner 失效
标题翻译：用于在文件扫描器中定位文档参考角的方法和装置
公开(公告)号：US5144455A
公开(公告)日：1992-09-01
申请号：US787694
申请日：1991-11-01
申请人： Irene F. Stein , Steven L. Webb , David W. Boyd
发明人： Irene F. Stein , Steven L. Webb , David W. Boyd
IPC分类号： H04N1/047 , H04N1/10 , H04N1/193
CPC分类号： H04N1/047 , H04N1/1017 , H04N1/193 , H04N2201/04729 , H04N2201/04731 , H04N2201/04789 , H04N2201/04791
摘要： A document to be scanned is corner referenced on a transparent platen, with the document's image facing down. The platen defines an X-Y coordinate system matrix. A moving line of light extends in the X direction and illuminates the document's image, line by line, as the line of light moves in the Y direction. The line of light that is thus reflected from the document is sensed by a linear CCD sensor array having a large number of individual sensor cells arranged in a line that effectively extends in the X direction. Each cell of the CCD array defines an individual pixel (PEL) within the line of light that is reflected from the document. A reflection target is located at a known position relative to the platen's referencing corner, to be scanned prior to scanning the document. Sensing of the target enables (1) the X direction physical position of the CCD sensor array relative to the referencing corner to be accurately determined, and (2) the Y direction physical position of the line of light relative to the the referencing corner to be accurately determined, both parameters being determined prior to scanning of the document.
摘要翻译：要扫描的文档是透明压板上的角落，文档的图像朝下。压板定义了X-Y坐标系矩阵。移动的光线在X方向上延伸，并沿着Y方向移动的光线一行一行地照亮文档的图像。由文件反射的光线由具有大量单独传感器单元的线性CCD传感器阵列感测，该传感器阵列沿X方向有效地延伸。 CCD阵列的每个单元限定从文档反射的光线内的单个像素（PEL）。反射目标位于相对于压板的参考角的已知位置，以在扫描文档之前进行扫描。感测目标使得（1）能够准确地确定CCD传感器阵列相对于参考角的X方向物理位置，以及（2）相对于参考角的光线的Y方向物理位置为准确确定，在扫描文件之前确定两个参数。

2. 发明授权

US5341225A Image scanning system and method with improved repositioning 失效
标题翻译：图像扫描系统和方法改进了重新定位
公开(公告)号：US5341225A
公开(公告)日：1994-08-23
申请号：US704576
申请日：1991-05-22
申请人： Irene F. Stein , Greg A. Degi , David W. Boyd , Steven L. Webb
发明人： Irene F. Stein , Greg A. Degi , David W. Boyd , Steven L. Webb
IPC分类号： H04N1/19 , H04N1/04 , H04N1/047 , H04N1/10 , H04N1/193
CPC分类号： H04N1/0411 , H04N1/0402 , H04N1/0414 , H04N1/0443 , H04N1/0473 , H04N1/1017 , H04N1/193 , H04N2201/0471 , H04N2201/04755 , H04N2201/04756
摘要： An image scanning system for producing digital data of a predetermined resolution representing a scanned image of an original. The system includes a photosensing array for generating the digital data, a stepper motor having steps of predetermined size for positioning the array with respect to the original, an image buffer for storing the data and control system for synchronizing the scanning and the storing of data at one or more Y-positioning speeds. Scan line extents along the Y-direction are defined by the relationship of the Y-positioning speed to the array exposure time. The scan lines in conjunction with the present invention have boundaries, wherein the boundaries can occur on or between said motor steps.
摘要翻译：一种用于产生表示原稿的扫描图像的预定分辨率的数字数据的图像扫描系统。该系统包括用于产生数字数据的光敏阵列，具有用于将阵列相对于原稿定位的预定尺寸的步骤的步进电机，用于存储数据的图像缓冲器和用于同步扫描和数据存储的控制系统一个或多个Y定位速度。沿Y方向的扫描线范围由Y定位速度与阵列曝光时间的关系定义。结合本发明的扫描线具有边界，其中边界可以发生在所述电动机台阶之间或之间。

3. 发明授权

US5239387A Buffering control for accommodating variable data exchange rates 失效
标题翻译：用于调整可变数据汇率的缓冲控制
公开(公告)号：US5239387A
公开(公告)日：1993-08-24
申请号：US668807
申请日：1991-03-07
申请人： Irene F. Stein , Steven L. Webb
发明人： Irene F. Stein , Steven L. Webb
IPC分类号： H04L7/00 , G06F5/06 , H04L29/08 , H04N1/00 , H04N1/047 , H04N1/10 , H04N1/193 , H04N1/21 , H04N1/32
CPC分类号： H04N1/32363 , G06F5/06 , H04N1/0473 , H04N1/32358 , H04N1/32368 , H04N1/32443 , H04N1/32448 , H04N1/00204 , H04N1/1017 , H04N1/193 , H04N2201/0081 , H04N2201/04755 , H04N2201/329
摘要： Digital data produced by a document scanner or other data source is sequentially stored in a memory. A remote data receiver generates requests for data causing communication of the data from the memory in the same sequence in which it was stored but at a rate substantially asynchronous with respect to the rate of scanner data production. Data is concurrently loaded into the memory and transferred from the memory to the receiver so that continuous data storage and transfer throughout the scan of a given image is possible. Data from the scanner is sequentially loaded into the memory in recycling sequences until there are no available memory storage sections. The scanner is then caused to stop scanning and to cease data production until transfer of data occurs from a memory storage section to the remote receiver. The scanner is thereafter enabled so as to resume with production of the next data following that which was last loaded into the memory. For a scanner, the data interruption and resumption is obtained by stopping and repositioning of the scanner bar relative to the document. Scanning is started or restarted when the data in the memory is inadequate to completely satisfy the current receive command.
摘要翻译：由文件扫描器或其他数据源产生的数字数据被顺序存储在存储器中。远程数据接收器产生对数据的请求，该数据导致来自存储器的数据以与存储器相同的顺序进行通信，但是以相对于扫描器数据生成速率基本上异步的速率。数据被同时加载到存储器中并从存储器传送到接收器，使得在给定图像的整个扫描中的连续数据存储和传送是可能的。来自扫描仪的数据以循环序列顺序加载到存储器中，直到没有可用的存储器存储部分。然后使扫描仪停止扫描并停止数据生成，直到数据从存储器存储部分发送到远程接收器。之后启用扫描仪，以便随着最后加载到存储器中的下一个数据的产生继续生效。对于扫描仪，通过停止和重新定位扫描器条相对于文档来获得数据中断和恢复。当存储器中的数据不足以完全满足当前接收命令时，启动或重新启动扫描。

4. 发明授权

US5930410A Method and apparatus for obtaining multiple views from one scan window 失效
标题翻译：从一个扫描窗口获得多个视图的方法和装置
公开(公告)号：US5930410A
公开(公告)日：1999-07-27
申请号：US782728
申请日：1997-01-13
申请人： Steven L. Webb , Nancy Mundelius , Margaret M. Sturgill , Irene F. Stein , Darwin A. DeVore
发明人： Steven L. Webb , Nancy Mundelius , Margaret M. Sturgill , Irene F. Stein , Darwin A. DeVore
IPC分类号： H04N1/04 , G06T1/60 , H04N1/40 , H04N1/60 , G06K9/20
CPC分类号： H04N1/6011 , H04N1/40
摘要： A computer operable method for implementing multiple views from a single scan window following a scanning process of an image scanner, the method involves designating the number of views to be obtained from the single scan window; designating the data type and other parameters for each of the number of designated views to be obtained from the single scan window; designating the number of views to be sent from the image scanner to a host computer; once a window has been scanned one or more times, generating a data signal representative of each of the number of views designated to be obtained from the single scan window; and sending each of the data signals representative of the number of views designated to be send from the image scanner to the host computer for further processing. The computer operable method may be implemented in scanner command language (SCL).
摘要翻译：一种用于在图像扫描仪的扫描处理之后从单个扫描窗口实现多个视图的计算机可操作方法，所述方法包括指定从单个扫描窗口获得的视图数量; 指定从单个扫描窗口获得的每个指定视图的数据类型和其他参数; 指定要从图像扫描仪发送到主机的视图数量; 一旦窗口被扫描一次或多次，就产生表示从单个扫描窗口指定为获得的每个视图数量的数据信号; 并且将表示从图像扫描器发送的视图数量的数据信号发送到主计算机以供进一步处理。计算机可操作的方法可以以扫描仪命令语言（SCL）来实现。

5. 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。

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