Image scanner and image scanning method
    3.
    发明授权
    Image scanner and image scanning method 失效
    图像扫描仪和图像扫描方法

    公开(公告)号:US5473445A

    公开(公告)日:1995-12-05

    申请号:US77115

    申请日:1993-06-16

    摘要: In a high-speed image scanner, a driving method is proposed which needs no timing adjustment between the sensor driving pulse and the motor drive pulse required when the motor shifts from an accelerated state to a constant-speed state. The period of the sensor driving pulse is selected to be equal to or 1/N (N=integer) of that of the motor drive pulse at the time of constant-speed operation, and the phases of the sensor driving pulse and motor drive pulse are controlled independently of each other. Thus, even though the sensor driving pulse and the motor drive pulse are out of good timing, each line of the image can be surely read.

    摘要翻译: 在高速图像扫描器中,提出了一种驱动方法,其不需要传感器驱动脉冲与当电动机从加速状态转换到恒定速度状态时所需的电动机驱动脉冲之间的定时调整。 传感器驱动脉冲的周期被选择为等于恒速运行时的电动机驱动脉冲的周期的1 / N(N =整数),并且传感器驱动脉冲和电动机驱动脉冲的相位 彼此独立地控制。 因此,即使传感器驱动脉冲和电动机驱动脉冲不正确,图像的每一行都可以被可靠地读取。