Image scanning apparatus capable of positioning a scan-starting point

    公开(公告)号:US07099054B2

    公开(公告)日:2006-08-29

    申请号:US10121512

    申请日:2002-04-15

    Abstract: An image scanning apparatus with scan-starting point positioning function comprising a casing, a carriage and a calibration sheet is provided. Of which, the casing comprises a scan-platform used to place documents to be scanned, while the calibration sheet, which is fixed to the inner surface of the carriage and lies between the home line of the carriage and the upper wider margin of the scan-platform, comprises a hollowed-out mark completed through a punch-cutting manufacturing process. The mark can be defined using a predefined function set and has a reference point. After the carriage has moved to a scan line, the reference point can be located according to the intersection points between the mark scanned and the scan line accompanied by the predefined function set of the mark. Of which, the calibration sheet and the inner surface of the casing are of different levels of brightness.

    Serial scanner apparatus, bi-directional error correction method therefor, and storage medium
    35.
    发明授权
    Serial scanner apparatus, bi-directional error correction method therefor, and storage medium 失效
    串行扫描仪装置,双向误差校正方法和存储介质

    公开(公告)号:US06650441B1

    公开(公告)日:2003-11-18

    申请号:US09412741

    申请日:1999-10-04

    Abstract: A serial scanner apparatus, correction method thereof, and storage medium for performing bi-directional reading with high precision and greatly improving the reading speed. A carriage is first driven in the forward direction, then reversed, and driven in the backward direction. The carriage is accelerated until the speed reaches a predetermined velocity v1. When the predetermined velocity v1 is reached, the carriage is driven at constant speed. In the head portion of the constant-speed driving area, a correction area (reference correction area), having the same distance as that of the correction area for forward driving, is provided. With the use of an area (actual correction area) obtained by adding an area for correction time stored by a controller unit to the reference correction area, read-start timing is adjusted and the bi-directional error is corrected.

    Abstract translation: 一种串行扫描仪装置及其校正方法和用于高精度地进行双向读取的存储介质,并大大提高了读取速度。 首先将滑架向前方向驱动,然后倒转,并向后方驱动。 滑架被加速直到速度达到预定速度v1。 当达到预定速度v1时,滑架以恒定的速度被驱动。 在恒速驱动区域的头部设置有与正向驱动的校正区域相同距离的校正区域(基准校正区域)。 利用通过将由控制器单元存储的校正时间的区域添加到参考校正区域而获得的区域(实际校正区域),调整读取开始定时并纠正双向错误。

    Compensation apparatus for image scan
    36.
    发明申请
    Compensation apparatus for image scan 有权
    图像扫描补偿装置

    公开(公告)号:US20030025948A1

    公开(公告)日:2003-02-06

    申请号:US09922099

    申请日:2001-08-03

    Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.

    Abstract translation: 一种用于图像扫描的补偿装置,应用于具有平台的光学扫描器,在其上设置待扫描物体。 光学扫描仪具有一组具有一组扫描感光装置和存储装置的感光装置。 当通过该组扫描光敏装置扫描物体时,获得扫描图像并临时保存在存储装置中。 补偿装置具有一组校准板,一组校准感光装置和图像处理器。 该组校准板有两个位于平台两侧的校准板。 该组校准光敏装置位于扫描光敏装置组的两侧。 图像处理器用于提取和比较校准图像,以便调整扫描图像。

    Displacement diagnosing method applied to an image read-out apparatus
    37.
    发明授权
    Displacement diagnosing method applied to an image read-out apparatus 失效
    位移诊断方法应用于图像读出装置

    公开(公告)号:US06498339B1

    公开(公告)日:2002-12-24

    申请号:US09597617

    申请日:2000-06-20

    Abstract: A scanner unit as an image read-out apparatus has a document glass on which a document is placed, an exposure lamp for illuminating the document with light, a CCD line sensor for receiving reflected flight from the document and converting the light to electric signal, first to third mirrors for conducing the reflected light from the document to the CCD sensor and a light condensing lens for allowing the reflected light which is conducted through the first to the third mirrors to condense on the CCD line sensor. In a position away from a document effective area at which the document is set on a document glass a chart is printed or attached to allow diagnosis to be made for the “displacements” of scanner unit's respective constituent elements, that is, optical members such as the exposure lamp, first to third mirrors, lens and CCD line sensor.

    Abstract translation: 作为图像读出装置的扫描仪单元具有放置文件的文件玻璃,用于用光照射文件的曝光灯,用于从文件接收反射飞行并将光转换成电信号的CCD线传感器, 用于将从文件到CCD传感器的反射光引导的第一至第三反射镜和用于允许通过第一至第三反射镜传导的反射光在CCD线传感器上凝结的聚光透镜。 在远离文件设置在文件玻璃上的文档有效区域的位置上,打印或附加图表以允许对扫描器单元的各个组成元件的“位移”进行诊断,即,诸如 曝光灯,第一至第三镜,镜头和CCD线传感器。

    Printer Device
    38.
    发明申请
    Printer Device 失效
    打印机设备

    公开(公告)号:US20020148376A1

    公开(公告)日:2002-10-17

    申请号:US10089685

    申请日:2002-04-03

    Abstract: A printing device reads an image on a printing paper with an image pickup part. It image-processes obtained image data in a control part, and operates the positions of respective register marks (R1 to R4). It operates the quantity of displacement necessary for positioning an image. It obtains an offset count number Co for deciding an image recording starting position from the obtained quantity of displacement. It stores the obtained offset count number Co while obtaining starting position data. Then, dimensional correction data for the image is calculated. The image on the printing paper is first picked up, and the necessary quantity of displacement is calculated. A speed coefficient k is calculated for changing the rotational speed of a plate cylinder. Following this, a correction quantity by a Cd default count number previously set for deciding the image recording starting position is changed. Accordingly, the offset count number Co is calculated again on the basis of the obtained speed variable k. The obtained speed coefficient k and the offset count number Co are stored, and starting position data is obtained from both data.

    Abstract translation: 打印装置用图像拾取部分读取打印纸上的图像。 图像处理获得控制部分中的图像数据,并且操作各个对准标记(R1至R4)的位置。 它操作定位图像所需的位移量。 从获得的位移量获得用于决定图像记录开始位置的偏移计数数量Co。 在获取起始位置数据的同时存储所获得的偏移计数数Co。 然后,计算图像的尺寸校正数据。 首先拾取打印纸上的图像,并计算必要的位移量。 计算用于改变印版滚筒的转速的速度系数k。 此后,改变预先设定用于决定图像记录开始位置的Cd默认计数号的校正量。 因此,基于获得的速度变量k再次计算偏移计数值Co。 存储所获得的速度系数k和偏移计数数Co,并且从两个数据获得起始位置数据。

    Device for improving scanning quality of image scanner
    39.
    发明授权
    Device for improving scanning quality of image scanner 有权
    提高图像扫描仪扫描质量的设备

    公开(公告)号:US06353486B1

    公开(公告)日:2002-03-05

    申请号:US09632206

    申请日:2000-08-02

    Inventor: Jenn-Tsair Tsai

    Abstract: An image scanner having an improved scanning quality is disclosed. Two different color blocks having an interface therebetween are provided on the document platform of the image scanner. The image pickup device passes by the color blocks prior to the document area so that color calibrations and/or error detection can be performed before the scanning operation is performed. By this way, the color data such as the brightness of the obtained image can be compensated, and the deflection rate and/or the amplification error of the image pickup device can be corrected.

    Abstract translation: 公开了一种具有改进的扫描质量的图像扫描仪。 在图像扫描仪的文档平台上设置两个具有界面的不同颜色块。 图像拾取装置通过文档区域之前的颜色块,使得可以在执行扫描操作之前执行颜色校准和/或错误检测。 通过这种方式,可以补偿所获得的图像的亮度等的颜色数据,并且可以校正图像拾取装置的偏转率和/或放大误差。

    Device and method for quick and precise determination of scan start point for image scanner
    40.
    发明授权
    Device and method for quick and precise determination of scan start point for image scanner 有权
    用于快速,准确地确定图像扫描仪扫描起点的设备和方法

    公开(公告)号:US06229629B1

    公开(公告)日:2001-05-08

    申请号:US09152152

    申请日:1998-09-11

    Inventor: Jenn-Tsair Tsai

    Abstract: A method for quick determination of a scan start point for an image scanner is disclosed. The image scanner includes a photo-processing device and a scanning platform for placing thereon a document to be scanned. The scanning platform is printed with a pattern mark which is located between a home position and a scan start point of the photo-processing device, and has a specified point being a predetermined first shift to the scan start point along a specific direction. According to the method, the photo-processing device moves a predetermined distance from the home position to a pre-scan position overlapping with the pattern mark, then moves a calculated distance from the pre-scan position to the specified point, and moves another predetermined distance from the specified point to the scan start point along the specific direction.

    Abstract translation: 公开了一种用于快速确定图像扫描仪的扫描起始点的方法。 图像扫描仪包括照相处理装置和用于放置待扫描文件的扫描平台。 扫描平台印刷有位于照相处理装置的原始位置和扫描起始点之间的图案标记,并且具有指定点是沿着特定方向到扫描开始点的预定的第一移位。 根据该方法,照相处理装置从原始位置移动到与图案标记重叠的预扫描位置的预定距离,然后将计算出的距离从预扫描位置移动到指定点,并且移动另一预定 沿指定方向从指定点到扫描起点的距离。

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