Scanner and method of controlling lighting cold-cathode tube thereof
    11.
    发明授权
    Scanner and method of controlling lighting cold-cathode tube thereof 有权
    照明冷阴极管的扫描器及其控制方法

    公开(公告)号:US06239884B1

    公开(公告)日:2001-05-29

    申请号:US09501924

    申请日:2000-02-10

    CPC classification number: H04N1/00689 H04N1/02815 H04N1/0287 H04N1/40056

    Abstract: A scanner according to the present invention includes a cold-cathode tube for radiating light on a manuscript reading position where an image on a manuscript is detected by an image sensor, a pre-heater for preheating before the lighting of the cold-cathode tube, a light source for detection connected to the pre-heater in series for radiating light toward the manuscript reading position to detect the end of the manuscript, a detecting element for detecting light reflected in the manuscript reading position from the light source for detection and generating a detection signal showing that the end of the manuscript is detected and a driving circuit for controlling the lighting of the cold-cathode tube and the stop of the pre-heater according to the detection signal from the detecting element. The lighting of the light source for detection and preheating by the pre-heater can be controlled with common power by connecting the pre-heater and the light source for detection for detecting the end of a manuscript in series and in addition, the lighting of the light source for detection and preheating can be simultaneously started.

    Abstract translation: 根据本发明的扫描仪包括:用于在原稿读取位置照射光的冷阴极管,其中通过图像传感器检测原稿上的图像,在冷阴极管的点亮之前预热预热器, 用于检测的光源用于串联的预热器,用于朝向原稿读取位置发射光以检测原稿的结束;检测元件,用于检测来自用于检测的光源的原稿读取位置中反射的光,并产生 检测原稿的检测信号,以及根据来自检测元件的检测信号,控制冷阴极管的点亮和预热器停止的驱动电路。 用预热器进行检测和预热的光源的照明可以通过连接预热器和用于检测的光源进行共同的功率来控制,用于串联检测原稿的结束,另外, 用于检测和预热的光源可以同时开始。

    Image reader apparatus and method of driving the same
    12.
    发明授权
    Image reader apparatus and method of driving the same 有权
    图像读取装置及其驱动方法

    公开(公告)号:US09167123B2

    公开(公告)日:2015-10-20

    申请号:US13141452

    申请日:2009-12-22

    Abstract: The present invention provides an image reader apparatus capable of obtaining an image having stable brightness while suppressing an increase of the cost of the apparatus. The image reader apparatus 1 for reading an image on a document 2 being fed and outputting an image signal includes a synchronization signal generation circuit 4 for generating a synchronization signal SS synchronous with a feed timing and a feed cycle of the document 2, a CCD 6 for reading an image on the document 2 in synchronism with the synchronization signal SS, an LED 9 for emitting white light, and a lighting control circuit 7 for turning the LED 9 on in synchronism with the synchronization signal SS and turning the light source off so that a lighting period is equalized for each line irrespective of a variation of the feed cycle of the document 2. The lighting control circuit 7 turns the LED 9 off so that the lighting period of the LED 9 is equal to a predetermined preset period.

    Abstract translation: 本发明提供一种能够在抑制设备成本增加的同时获得具有稳定亮度的图像的图像读取装置。 用于读取正在馈送并输出图像信号的原稿2上的图像的图像读取装置1包括:同步信号生成电路4,用于产生与原稿2的进给定时和进给循环同步的同步信号SS,CCD 6 用于与同步信号SS同步地读取文档2上的图像,用于发射白光的LED 9,以及用于同步同步信号SS同时转动LED 9的照明控制电路7,并且使光源断开 无论文档2的进纸周期的变化如何,每一行的发光周期被均衡。点亮控制电路7关闭LED 9,使得LED 9的点亮周期等于预定的预设周期。

    IMAGE READING APPARATUS AND IMAGE READING METHOD
    13.
    发明申请
    IMAGE READING APPARATUS AND IMAGE READING METHOD 有权
    图像读取装置和图像读取方法

    公开(公告)号:US20130176604A1

    公开(公告)日:2013-07-11

    申请号:US13824866

    申请日:2011-08-09

    CPC classification number: H04N1/10 G06K9/00026

    Abstract: An image reading apparatus includes a touch panel that outputs a press position pressed by a finger as coordinate information in a sub-scanning direction, the finger being placed on the surface of the touch panel, a CCD that takes an image of the finger placed on the touch panel from the rear side of the touch panel in a main-scanning direction, and outputs an image signal, and a motor that moves the CCD in the sub-scanning direction so as to follow a rotational movement of the finger based on the movement amount detected by the movement detection unit.

    Abstract translation: 图像读取装置包括:触摸面板,其输出由手指按压的按压位置作为副扫描方向的坐标信息,手指放置在触摸面板的表面上,CCD将拍摄手指的图像放置在 触摸面板沿主扫描方向从触摸面板的后侧输出,并输出图像信号;以及马达,其沿着副扫描方向移动CCD,以便基于手指的旋转运动 由移动检测单元检测的移动量。

    IMAGE READING DEVICE
    14.
    发明申请
    IMAGE READING DEVICE 有权
    图像读取装置

    公开(公告)号:US20120127543A1

    公开(公告)日:2012-05-24

    申请号:US13263772

    申请日:2010-04-08

    CPC classification number: H04N1/0402 H04N1/0446

    Abstract: An image reading device includes: a CCD for reading an image on a document to output an image signal; a light source for switchingly emitting visible light and non-visible light; and lighting control means for controlling lighting periods of the light source. The lighting control means is adapted to perform control such that a first light source lighting period for applying non-visible light is longer than a second light source lighting period for applying visible light. The image reading device also includes splitting means for splitting the image signals outputted from the CCD into an image signal upon application of visible light and an image signal upon application of non-visible light.

    Abstract translation: 图像读取装置包括:用于读取文档上的图像以输出图像信号的CCD; 用于切换发射可见光和不可见光的光源; 以及用于控制光源的照明时段的照明控制装置。 照明控制装置适于执行用于施加不可见光的第一光源照明时段比用于施加可见光的第二光源照明时段长的控制。 图像读取装置还包括分割装置,用于在施加可见光时施加可见光和图像信号,将从CCD输出的图像信号分解成图像信号。

    Scanner having cold-cathode-tube light source and method of controlling a drive signal for illuminating a cold-cathode-tube light source
    15.
    发明授权
    Scanner having cold-cathode-tube light source and method of controlling a drive signal for illuminating a cold-cathode-tube light source 失效
    具有冷阴极管光源的扫描器和控制用于照明冷阴极管光源的驱动信号的方法

    公开(公告)号:US06713744B1

    公开(公告)日:2004-03-30

    申请号:US09695323

    申请日:2000-10-25

    CPC classification number: H04N1/40056 H05B41/39

    Abstract: The scanner includes the switch 10 that is closed when a document is read, the boosted-voltage conversion circuit 12 that boosts a DC voltage of 12 volts (V) supplied from a power source (not shown) and then converts it into a high-frequency signal b of 50 KHz, the temperature detection circuit 20 formed of the thermistor 15 for ambient temperature detection and correction circuit 16, and the dimmer control circuit 13 that varies the high-frequency signal b from the boosted-voltage conversion circuit 12 according to a temperature detected by the thermistor 15 and produces a drive signal c to vary the luminance of the cold-cathode-tube light source 2.

    Abstract translation: 扫描器包括当读取文件时关闭的开关10,升压电压转换电路12,其升压从电源(未示出)提供的12伏特(V)的直流电压,然后将其转换为高电平, 频率信号b为50KHz,由用于环境温度检测和校正电路16的热敏电阻15形成的温度检测电路20和根据升压电压转换电路12改变高频信号b的调光控制电路13 由热敏电阻15检测到的温度,并产生驱动信号c以改变冷阴极管光源2的亮度。

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