Image data reading apparatus
    7.
    发明授权
    Image data reading apparatus 失效
    图像数据读取装置

    公开(公告)号:US5214520A

    公开(公告)日:1993-05-25

    申请号:US617809

    申请日:1990-11-26

    申请人: Hideyuki Miyazawa

    发明人: Hideyuki Miyazawa

    IPC分类号: H04N1/04 H04N1/401 H04N1/407

    CPC分类号: H04N1/4076

    摘要: An image data reading apparatus is provided, comprising a transport part for transporting an original sheet to a reading position within the image data reading apparatus, a white reference plate provided at the reading position, a light source for generating a light projected to the reading position, a light receiving part for converting an incoming light reflected from the white reference plate into a white reference signal and for converting an incoming light reflected from the original sheet into an image signal, a correction part for eliminating a shading from the image signal based on a reference voltage, a peak level holding part for detecting and storing a peak level of a corrected signal from the correction part, a quantization part for converting an incoming signal from the correction part into digital information based on the peak level, and a switching part for turning the peak level holding part off to stop detection and storing of the peak level of the incoming signal for a prescribed time period between a time the white reference signal is received by the light receiving part from the white reference plate and at a time the original sheet is transported to the reading position, so that the peak level holding part receives no signal from the light receiving part during the prescribed time period.

    摘要翻译: 提供了一种图像数据读取装置,包括用于将原稿片材传送到图像数据读取装置内的读取位置的传送部件,设置在读取位置的白色基准板,产生投影到读取位置的光的光源 ,用于将从白色参考板反射的入射光转换为白色参考信号并将从原始片反射的入射光转换成图像信号的光接收部分,用于基于图像信号消除阴影的校正部分 参考电压,用于检测和存储来自校正部分的校正信号的峰值电平的峰值电平保持部分,用于基于峰值电平将来自校正部分的输入信号转换成数字信息的量化部分,以及切换部分 用于使峰值电平保持部分关闭以停止检测并存储输入信号的峰值电平 从白色基准板接受白色参考信号的时间与原稿被传送到读取位置之间的规定时间段,使得峰值电平保持部分不接收来自光的信号 在规定的时间内接收部分。

    Integrated input/output device
    8.
    发明授权
    Integrated input/output device 失效
    集成输入/输出设备

    公开(公告)号:US4868669A

    公开(公告)日:1989-09-19

    申请号:US79013

    申请日:1987-07-29

    申请人: Hideyuki Miyazawa

    发明人: Hideyuki Miyazawa

    摘要: An integrated input/output device includes a substrate having a pair of opposite surfaces, and an input function unit is defined on one of the pair of opposite surfaces and an output function unit is defined on the other of the pair of opposite surfaces. In the preferred embodiment, a reading unit for optically reading an original document and a thermal printhead for recording an image on recording paper are defined on opposite surfaces of the same substrate. Such an integrated input/output device is compact in size, thereby contributing to minimize its space requirement for installation, and sturdy in structure.

    摘要翻译: 集成输入/输出装置包括具有一对相对表面的基板,并且输入功能单元限定在该对相对表面之一上,并且输出功能单元限定在该对相对表面中的另一个上。 在优选实施例中,用于光学读取原稿的读取单元和用于在记录纸上记录图像的热打印头被限定在同一基板的相对表面上。 这种集成输入/输出装置的尺寸紧凑,从而有助于最小化其安装空间要求,结构坚固。

    Image reader for image processing apparatus
    9.
    发明授权
    Image reader for image processing apparatus 失效
    图像处理设备的图像读取器

    公开(公告)号:US4677496A

    公开(公告)日:1987-06-30

    申请号:US738187

    申请日:1985-05-28

    申请人: Hideyuki Miyazawa

    发明人: Hideyuki Miyazawa

    摘要: An image reader applicable to a document or image reading section of a facsimile apparatus or the like and equipped with a line image sensor. Light-sensitive cells of the line image sensor are divided into blocks which in turn are sorted by the order of arrangement into a plurality of groups. The blocks in one group are switched from one to another while outputs of the other group are selected. The light-sensitive cells constituting the respective blocks are classified into a plurality of groups by the order of arrangement, so that the different groups are driven in parallel.

    摘要翻译: 一种适用于传真机等的文件或图像读取部分并配备有行图像传感器的图像读取器。 线状图像传感器的感光细胞被分成多个块,其依次排列成多组。 一组中的块从一个切换到另一组,而另一组的输出被选择。 构成各个块的感光单元按照排列的顺序分成多个组,使得不同的组被并行驱动。

    Image reader for image processing apparatus
    10.
    发明授权
    Image reader for image processing apparatus 失效
    图像处理设备的图像读取器

    公开(公告)号:US4646155A

    公开(公告)日:1987-02-24

    申请号:US756314

    申请日:1985-07-18

    IPC分类号: H04N1/193 H04N1/40 H04N3/14

    CPC分类号: H04N1/1931 H04N1/40056

    摘要: An image reader in which a plurality of light-sensitive cells arranged in an array in a line image sensor are divided into a predetermined number of blocks, and the blocks are sequentially selected to sequentially drive the light-sensitive cells in each of the blocks to produce image signals. Charging switches are provided for charging the light-sensitive cells via block selector switches. The charging switches are activated after a signal read time assigned to each light-sensitive cell has expired to thereby shorten the charging time necessary for the light-sensitive cell. The block selector switches are each actuated at a predetermined timing while the charging switches are activated, thereby preventing noise due to switching actions of the block selector switches from being introduced into image signals.

    摘要翻译: 其中以线阵图像传感器排列成阵列的多个感光单元被分成预定数量的块的图像读取器,并且顺序选择块以顺序地驱动每个块中的感光单元到 产生图像信号。 提供充电开关,用于通过块选择器开关对感光单元充电。 在分配给每个感光单元的信号读取时间已经期满之后,充电开关被激活,从而缩短感光单元所需的充电时间。 在充电开关被激活的同时,块选择器开关各自被激活,从而防止由块选择器开关的切换动作引起的图像信号引起的噪声。