System and method of measuring image sensor chip shift
    21.
    发明授权
    System and method of measuring image sensor chip shift 失效
    测量图像传感器芯片位移的系统和方法

    公开(公告)号:US06600568B1

    公开(公告)日:2003-07-29

    申请号:US09433465

    申请日:1999-11-04

    Abstract: A method of measuring sensor chip shift comprises the following steps. First, provide a contact image sensor module comprising a plurality of sensor chips arranged in a row on a main board, with each sensor chip having multiple sensors. Next, provide a test chart with a predetermined pattern. Further, enable the multiple sensors of the contact image sensor module to scan the predetermined pattern of the test chart. Moreover, select signal waves sensed by the sensors at the ends of two adjacent sensor chips. Finally, calculate the gap between the sensors at the ends of the two adjacent sensor chips according to the signal waves.

    Abstract translation: 测量传感器芯片位移的方法包括以下步骤。 首先,提供一种接触图像传感器模块,其包括在主板上排成行的多个传感器芯片,每个传感器芯片具有多个传感器。 接下来,提供具有预定图案的测试图。 此外,使接触式图像传感器模块的多个传感器能够扫描测试图的预定模式。 此外,在两个相邻传感器芯片的端部处选择由传感器感测的信号波。 最后,根据信号波计算两个传感器芯片两端传感器之间的间隙。

    Image formation method for forming electrostatic latent image on photosensitive belt with laser beam and image formation apparatus of the same
    22.
    发明授权
    Image formation method for forming electrostatic latent image on photosensitive belt with laser beam and image formation apparatus of the same 失效
    用激光束在感光带上形成静电潜像的图像形成方法及其图像形成装置

    公开(公告)号:US06195108B1

    公开(公告)日:2001-02-27

    申请号:US09356459

    申请日:1999-07-19

    Applicant: Hiromasa Kanno

    Inventor: Hiromasa Kanno

    Abstract: An image formation apparatus of the present invention forms an electrostatic latent image on a moving photosensitive belt by a laser beam produced by a laser device. A belt edge detector 1 detects an edge portion (belt edge) of a photosensitive belt 100 in a main scanning direction. A virtual edge detection circuit 2 generates a virtual edge detection signal 2A which changes a generation timing in accordance with a change of a detection timing of the belt edge detected by the belt edge detector 1. The generation timing of the virtual edge detection signal 2A does not almost follow the detection timing of the belt edge which changes by flaws and non-linearity of the belt edge, and changes in accordance with a slow change of the detection timing. A synchronizing signal generation circuit 3 and a driving circuit 4 drives the laser device so as to start a writing of an image data by the laser beam in synchronization with the virtual edge detection signal.

    Abstract translation: 本发明的图像形成装置通过由激光装置产生的激光束在移动感光带上形成静电潜像。 带边缘检测器1在主扫描方向上检测感光带100的边缘部分(带边缘)。 虚拟边缘检测电路2生成根据由带边缘检测器1检测到的带边缘的检测定时的变化来改变生成定时的虚拟边缘检测信号2A。虚拟边缘检测信号2A的生成定时 不是几乎跟随由皮带边缘的缺陷和非线性而改变的带边缘的检测定时,并且根据检测定时的缓慢变化而改变。 同步信号发生电路3和驱动电路4驱动激光装置,以便与虚拟边缘检测信号同步地开始由激光束写入图像数据。

    Color registration control method utilizing density sensor
    29.
    发明申请
    Color registration control method utilizing density sensor 审中-公开
    利用密度传感器的色彩配准控制方法

    公开(公告)号:US20040227966A1

    公开(公告)日:2004-11-18

    申请号:US10808501

    申请日:2004-03-25

    Inventor: Jung-han Lee

    Abstract: A color registration control method is provided. The color registration control method includes developing a registration pattern with predetermined colors by overlapping a left-half pattern and a right-half pattern of a second pattern, and a left-half pattern and a right-half pattern of a first pattern, which are arranged symmetrically to a center, respectively, in a scanning direction; detecting density information of the left-half pattern and the right-half pattern of the registration pattern by using a first and a second density sensor, and sending the detected information to a comparator; calculating a color registration error by comparing the density of the left-half pattern with the density of the right-half pattern; and outputting from the control unit a color registration control signal according to an error signal received by the comparator.

    Abstract translation: 提供了一种颜色配准控制方法。 颜色配准控制方法包括通过重叠第二图案的左半图案和右半图案以及第一图案的左半图案和右半图案来重叠具有预定颜色的配准图案,其是 分别在扫描方向上对称地布置在中心上; 通过使用第一和第二密度传感器检测登记图案的左半图案和右半图案的浓度信息,并将检测到的信息发送到比较器; 通过将左半图案的密度与右半图案的密度进行比较来计算颜色配准误差; 并根据由比较器接收到的误差信号从控制单元输出彩色登记控制信号。

Patent Agency Ranking