公开(公告)号：US20110122733A1

公开(公告)日：2011-05-26

申请号：US12924552

申请日：2010-09-29

申请人： Keishi Honmura ,  Akira Takakura ,  Saburo Manaka ,  Kazumi Sakumoto ,  Kosuke Yamamoto ,  Takanori Hasegawa ,  Kenji Ogasawara ,  Hiroshi Shimizu ,  Tomohiro Ihashi ,  Kazuo Kato ,  Erico Noguchi

发明人： Keishi Honmura ,  Akira Takakura ,  Saburo Manaka ,  Kazumi Sakumoto ,  Kosuke Yamamoto ,  Takanori Hasegawa ,  Kenji Ogasawara ,  Hiroshi Shimizu ,  Tomohiro Ihashi ,  Kazuo Kato ,  Erico Noguchi

IPC分类号： G04B19/04 ,  H02P8/38

CPC分类号： G04C3/143 ,  H02P8/38

摘要： A stepping motor control circuit includes a rotation detection portion that detects a rotation condition of a stepping motor, and a control portion that drives and controls the stepping motor by a correction drive pulse P2 having larger drive energy than one of any one of a plurality of main drive pulses P1 each having different drive energy and the respective main drive pulses P1 depending on a detection result of the rotation detection portion. The control portion drives the stepping motor by switching to a fixed drive pulse having drive energy not smaller than drive energy of a main drive pulse P1nmax having maximum drive energy in a case where there is no drive allowance when the stepping motor is driven by the main drive pulse P1nmax having the maximum drive energy. The stepping motor is thus rotary driven normally even in a DC magnetic field.

摘要翻译： 步进电动机控制电路包括：检测步进电动机的旋转状态的旋转检测部;以及驱动和控制步进电动机的控制部，该修正驱动脉冲P2具有比多个 主驱动脉冲P1各自具有不同的驱动能量和相应的主驱动脉冲P1，这取决于旋转检测部分的检测结果。 控制部通过切换到具有不小于具有最大驱动能量的主驱动脉冲P1nmax的驱动能量的固定驱动脉冲来驱动步进电机，在步进电机由主驱动时不存在驱动余量的情况下 具有最大驱动能量的驱动脉冲P1nmax。 因此，即使在直流磁场中，步进电机也能正常旋转驱动。

公开(公告)号：US20110158053A1

公开(公告)日：2011-06-30

申请号：US12928572

申请日：2010-12-14

申请人： Kenji Ogasawara ,  Akira Takakura ,  Saburo Manaka ,  Keishi Honmura ,  Takanori Hasegawa ,  Kosuke Yamamoto ,  Kazumi Sakumoto ,  Hiroshi Shimizu ,  Kazuo Kato ,  Erico Noguchi ,  Tomohiro Ihashi

发明人： Kenji Ogasawara ,  Akira Takakura ,  Saburo Manaka ,  Keishi Honmura ,  Takanori Hasegawa ,  Kosuke Yamamoto ,  Kazumi Sakumoto ,  Hiroshi Shimizu ,  Kazuo Kato ,  Erico Noguchi ,  Tomohiro Ihashi

IPC分类号： G04F8/00 ,  G04B19/04

CPC分类号： G04F8/006

摘要： Provided is a chronograph timepiece to perform a system reset by an easy-to-understand operation for users, including a crown, an operating unit that at least starts and resets a time period measurement, a time hand drive unit that keeps time of day based on a clock signal for electrically driving a time hand so as to indicate the timed time of day, a chronograph hand drive unit that measures a time period based on a chronograph signal in response to the start for electrically driving a chronograph hand so as to indicate a measured time period and to reset the time period measurement in response to the reset directed by the operating unit, and a control unit that resets the time hand drive unit in response to a reset directed by the crown and resets the chronograph hand drive unit in response to the reset directed by the operating unit.

摘要翻译： 提供了一种计时钟表，用于通过易于理解的操作来执行系统重置，包括表冠，至少启动和复位时间段测量的操作单元，保持时间基准的时间驱动单元 用于电时驱动时针以指示一天的定时时间的时钟信号;计时指针驱动单元，其响应于用于电驱动计时指针的开始而基于计时信号测量时间段，以指示 测量时间段，并且响应于由操作单元指示的复位来重置时间段测量;以及控制单元，其响应于由表冠指示的复位来复位时间驱动单元，并将计时指针驱动单元复位在 对由操作单元执行的复位的响应。