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    • 8. 发明授权
    • Electronic device, malfunction determining method, and computer program product
    • 电子设备,故障确定方法和计算机程序产品
    • US08731416B2
    • 2014-05-20
    • US13050605
    • 2011-03-17
    • Tatsuya Watahiki
    • Tatsuya Watahiki
    • G03G15/00
    • G03G15/5008G03G15/5033G03G15/505G03G15/55G03G15/757G03G21/1647G03G2215/00075G03G2221/1606H02P29/0241
    • An electronic device including a first motor, the electronic device including: a first movable body that is driven to move by the first motor; a detecting unit that detects a signal according to rotation of the first motor or movement of the first movable body; an analyzing unit that performs frequency analysis of the signal and generates an analysis result with respect to each frequency; and a determining unit that determines presence or absence of malfunction of the first motor or the first movable body based on an analysis result of a first frequency preset with respect to the first motor or the first movable body out of frequencies, and determines presence or absence of malfunction of a part other than the first motor and the first movable body on the basis of an analysis result of a second frequency preset with respect to the part out of the frequencies.
    • 一种电子设备,包括第一电动机,所述电子设备包括:被所述第一电动机驱动的第一可移动体; 检测单元,其根据第一电动机的旋转或第一可移动体的运动来检测信号; 分析单元,对所述信号执行频率分析,并生成关于每个频率的分析结果; 以及确定单元,其基于相对于所述第一电动机或所述第一可移动体预先设定的第一频率的频率的分析结果来确定所述第一电动机或所述第一可移动体的故障的存在或不存在,并且确定存在或不存在 基于针对频率部分预设的第二频率的分析结果,除了第一电动机和第一可移动体之外的部分的故障。
    • 10. 发明授权
    • Rotation device, method for controlling rotation of a driving source, computer readible medium and image forming apparatus including the rotation device
    • 旋转装置,用于控制驱动源的旋转的方法,计算机可读介质和包括旋转装置的成像装置
    • US07561830B2
    • 2009-07-14
    • US11723267
    • 2007-03-19
    • Tatsuya Watahiki
    • Tatsuya Watahiki
    • G03G15/01G03G15/16
    • G03G15/757G03G15/5008
    • A rotation device includes a rotation member, rotation driving source, transmission mechanism, rotation pulse generation mechanism, target value arrangement mechanism, correction value computation mechanism, and control mechanism. The transmission mechanism decreases the rotation speed at a non-integer gear ratio. The target value arrangement mechanism includes a rotation unevenness provision mechanism to impart a plurality of kinds of sine-wave unevenness to the rotation speed target value. The correction value computation mechanism determines the correction value to adjust rotation fluctuation caused by a rotation axis eccentricity component of the rotation driving source and at least one noise component having a cycle relationship with a rotation cycle of the rotation member based on a time interval of a pulse train generated every rotation of the rotation member by the rotation pulse generation mechanism when the plurality of kinds of the rotation unevenness are imparted to the rotation speed target value.
    • 旋转装置包括旋转构件,旋转驱动源,传动机构,旋转脉冲发生机构,目标值排列机构,校正值计算机构和控制机构。 传动机构以非整数齿轮比使转速降低。 目标值排列机构包括:旋转不均匀性提供机构,用于将多种正弦波不均匀度赋予旋转速度目标值。 校正值计算机构确定校正值,以调整由旋转驱动源的旋转轴偏心分量引起的旋转波动,以及基于旋转构件的旋转周期与旋转构件的旋转周期的循环关系的至少一个噪声分量 当将多种旋转不均匀度赋予旋转速度目标值时,通过旋转脉冲产生机构产生旋转构件的每个旋转的脉冲串。