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    • 64. 发明授权
    • Image reading apparatus
    • 图像读取装置
    • US08482824B2
    • 2013-07-09
    • US12725340
    • 2010-03-16
    • Hideaki Nagasaka
    • Hideaki Nagasaka
    • H04N1/46
    • H04N1/40056H04N1/484
    • An image reading apparatus includes: a sheet table including a placement surface on which a sheet is placed; a light emitting device including light sources; a light emitting unit including a plurality of light emitting devices for emitting light to the placement surface; a light receiving unit; a read image conversion unit converting the received light into read image information; a pulse signal output unit that outputs a pulse signal; a plurality of drive current supply units supplying drive currents to the plurality of light emitting devices; a light emission control unit; a first light emission parameter determination unit; and a second light emission parameter determination unit. The light emission control unit controls the light sources to emit the same color light in sequence based on a drive current value of a first and second light emitting devices and a light emission time of the light sources.
    • 图像读取装置包括:片材台,其包括放置表面的片材; 包括光源的发光器件; 发光单元,包括用于向所述放置表面发射光的多个发光器件; 光接收单元; 读取图像转换单元,将接收的光转换成读取的图像信息; 脉冲信号输出单元,其输出脉冲信号; 多个驱动电流供应单元,向多个发光器件提供驱动电流; 发光控制单元; 第一发光参数确定单元; 和第二发光参数确定单元。 发光控制单元基于第一和第二发光器件的驱动电流值和光源的发光时间依次控制光源发射相同的颜色光。
    • 66. 发明授权
    • Image reading apparatus and image forming apparatus capable of suppressing deterioration of image quality
    • 能够抑制图像品质恶化的图像读取装置和图像形成装置
    • US08368974B2
    • 2013-02-05
    • US12720641
    • 2010-03-09
    • Hideaki Nagasaka
    • Hideaki Nagasaka
    • H04N1/04
    • H04N1/40056
    • A light source lights up at luminance associated with supplied electric current. An electric-current supplying section supplies the light source with electric current. A control section controls the electric-current supplying section. A reading section reads at least one sheet of an original document on which light from the light source is irradiated and generates image data. A determining section determines whether a change in the electric current flowing through the light source is large, based on a predetermined criterion, during a period when the reading section reads the at least one sheet of the original document. When the reading section reads the at least one sheet of the original document, the control section increases electric current supplied to the light source if the determining section determines that the change is large relative to electric current supplied to the light source when the determining section determines that the change is small.
    • 光源以提供的电流相关的亮度亮起。 电流供给部向光源供给电流。 控制部控制电流供给部。 阅读部分读取照射来自光源的光的至少一张原稿,生成图像数据。 在读取部读取至少一张原稿的期间,确定部基于预定标准,判定流过光源的电流的变化是否大。 当读取部读取原稿的至少一张时,如果确定部确定当确定部确定了相对于提供给光源的电流时变化大的话,则增加提供给光源的电流 变化很小。
    • 67. 发明授权
    • Image reading device capably scanning an image formed on a document in consideration of deterioration of the reference member
    • 考虑到参考构件的劣化,图像读取装置可以可靠地扫描形成在文件上的图像
    • US08111433B2
    • 2012-02-07
    • US11926773
    • 2007-10-29
    • Hideaki Nagasaka
    • Hideaki Nagasaka
    • H04N1/40G06K7/00
    • H04N1/4076
    • An image reading device includes a reference member, a reading unit, a first reference value setting unit, a detecting unit, a second reference value setting unit, a determining unit, and a pixel value setting unit. The reading unit obtains image data and reference data. The first reference value setting unit sets a first reference value based on the reference data. The detecting unit detects a usage state of the reading unit. The second reference value setting unit sets a second reference value in accordance with the usage state. If the determining unit determines that the first reference value is in a predetermined condition, the pixel value setting unit sets a pixel value based on the image data and the first reference value; otherwise, the pixel value setting unit sets the pixel value based on the image data and the second reference value.
    • 图像读取装置包括参考构件,读取单元,第一基准值设定单元,检测单元,第二基准值设定单元,确定单元和像素值设定单元。 读取单元获取图像数据和参考数据。 第一参考值设置单元基于参考数据设置第一参考值。 检测单元检测读取单元的使用状态。 第二基准值设定单元根据使用状态设定第二基准值。 如果确定单元确定第一参考值处于预定条件,则像素值设置单元基于图像数据和第一参考值设置像素值; 否则,像素值设定单元基于图像数据和第二基准值来设定像素值。
    • 68. 发明申请
    • Image Reading Apparatus, Facsimile Apparatus And Copying Apparatus
    • 图像读取装置,传真装置和复印装置
    • US20080309958A1
    • 2008-12-18
    • US11939943
    • 2007-11-14
    • Hideaki Nagasaka
    • Hideaki Nagasaka
    • G06F3/12
    • H04N1/00002H04N1/00013H04N1/00023H04N1/00029H04N1/00053H04N1/00063H04N1/00076H04N1/484H04N2201/0094
    • An image reading apparatus includes a plurality of light emitting units, an activation unit, a plurality of light receiving units and a determination unit. The determination unit retrieves at least one output signal from the plurality of light receiving units in accordance with a predetermined retrieving procedure each time each of the plurality of light emitting units is activated, and determines, based on the at least one output signal, whether or not at least one of at least one of the plurality of light emitting units and at least one of the plurality of light receiving units is normal. The predetermined retrieving procedure is configured such that at least one output signal is retrieved from a part of the plurality of light receiving unite in response to an activation of at least one of the plurality of light emitting units.
    • 图像读取装置包括多个发光单元,激活单元,多个光接收单元和确定单元。 确定单元每当多个发光单元被激活时,根据预定的检索过程从多个光接收单元检索至少一个输出信号,并且基于至少一个输出信号确定是否或 不是多个发光单元中的至少一个和多个光接收单元中的至少一个是正常的中的至少一个。 预定的检索过程被配置为使得响应于多个发光单元中的至少一个的激活,从多个光接收单元的一部分中检索至少一个输出信号。
    • 69. 发明申请
    • Image sensor, reading device and method for setting particular mode
    • 图像传感器,读取装置和设置特定模式的方法
    • US20050002071A1
    • 2005-01-06
    • US10831106
    • 2004-04-26
    • Tetsuya KatoHideaki Nagasaka
    • Tetsuya KatoHideaki Nagasaka
    • H01L27/146H04N1/028H04N1/17H04N1/19H04N1/40H04N1/46H04N5/335H04N5/369H04N5/374
    • H04N1/40056
    • An image sensor, a reading device and a method for setting a particular mode are provided. The image sensor comprises a plurality of photoelectric converting elements, for converting optical signals to electric signals; a group of channel select switches, each channel select switch arranged between a charge output unit of each channel select switch and a signal line corresponding to each photoelectric converting element, wherein the group of the channel select switches can be turned on and off sequentially synchronizing with an externally supplied clock pulse signal; and particular mode setting means, wherein when a clock pulse signal and a start signal with a fixed width are input, the particular mode setting means sets a particular mode under a specific combination pattern of the clock pulse signal and the start signal.
    • 提供了图像传感器,读取装置和用于设定特定模式的方法。 图像传感器包括多个光电转换元件,用于将光信号转换成电信号; 一组通道选择开关,每个通道选择开关布置在每个通道选择开关的电荷输出单元和与每个光电转换元件相对应的信号线之间,其中通道选择开关组可以顺序地同时接通和断开 外部提供的时钟脉冲信号; 以及特定模式设定装置,其中当输入时钟脉冲信号和具有固定宽度的起始信号时,特定模式设置装置在时钟脉冲信号和起始信号的特定组合模式下设置特定模式。