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1. 发明授权

US08841875B2 Electronic watch 有权
标题翻译：电子手表
公开(公告)号：US08841875B2
公开(公告)日：2014-09-23
申请号：US13500829
申请日：2010-10-06
申请人： Yu Takyo , Toshiaki Fukushima , Akira Shiota , Toshinari Maeda , Nobuaki Suzuki
发明人： Yu Takyo , Toshiaki Fukushima , Akira Shiota , Toshinari Maeda , Nobuaki Suzuki
IPC分类号： H02P8/00 , G04C3/14 , H02P8/02
CPC分类号： G04C3/143 , H02P8/02
摘要： Provided is an electronic watch capable of, even if an indicating hand having a large moment of inertia is used, accurately determining success and failure of rotation. The electronic watch detects rotation by using a first detection mode determination circuit (12) and a second detection mode determination circuit (13). In the electronic watch, a timing counter (14) for measuring a time after an output of a normal drive pulse is followed by a detection pulse selection circuit (151) provided as changing means for changing a width or a frequency of a detection pulse in accordance with an output time of the detection pulse. The detection pulse detects the rotation and simultaneously serves as an electromagnetic brake for a rotor (10). The electromagnetic brake for the rotor (10) is controlled by changing the width or the frequency of the detection pulse in a predetermined period, thereby achieving an accurate rotation detection. Alternatively, the setting of the width or the frequency of the detection pulse may be changed in accordance with a determination result in a first detection mode, an output voltage of a power supply, and a driving power of the normal drive pulse, instead of the output timing of the detection pulse.
摘要翻译：提供一种能够即使具有大惯性矩的指示手也能够精确地确定旋转成功和失败的电子手表。电子表通过使用第一检测模式确定电路（12）和第二检测模式确定电路（13）检测旋转。在电子表中，用于测量正常驱动脉冲输出之后的时间的定时计数器（14）后面是检测脉冲选择电路（151），该检测脉冲选择电路（151）被设置为改变装置，用于改变检测脉冲的宽度或频率根据检测脉冲的输出时间。检测脉冲检测旋转，同时用作转子（10）的电磁制动器。用于转子（10）的电磁制动器通过在预定时间段内改变检测脉冲的宽度或频率来控制，从而实现精确的旋转检测。或者，可以根据第一检测模式，电源的输出电压和正常驱动脉冲的驱动功率的确定结果来改变检测脉冲的宽度或频率的设置，而不是检测脉冲的输出定时。

2. 发明授权

US08848492B2 Electronic watch 有权
标题翻译：电子手表
公开(公告)号：US08848492B2
公开(公告)日：2014-09-30
申请号：US13578929
申请日：2011-02-09
申请人： Masaaki Namekawa , Yu Takyo
发明人： Masaaki Namekawa , Yu Takyo
IPC分类号： H02P8/00 , G04C3/14 , G04G19/10 , H02P8/02
CPC分类号： H02P8/02 , G04C3/143 , G04G19/10
摘要： When recovering power from a motor driver, a forward voltage across a parasitic diode can reduce the recovery efficiency, and control of a power recovery operation can take an unnecessarily long time. In order to address this problem, the power recovery operation is performed as follows without being affected by a parasitic diode: near a peak position of a waveform of an induced current resulting from free oscillation of a rotor after a drive pulse is output, a recovery pulse having such a level that the rotor does not rotate is output from a terminal different from a motor driver terminal to which the drive pulse was output. Also, by adjusting the width and output timing of the recovery pulse based on a power supply voltage, the power recovery can be optimized for the power supply voltage.
摘要翻译：当从电动机驱动器恢复供电时，跨越寄生二极管的正向电压可以降低恢复效率，并且电力恢复操作的控制可能需要不必要的长时间。为了解决这个问题，功率恢复操作如下进行，而不受寄生二极管的影响：驱动脉冲输出后转子的自由振荡导致的感应电流的波形的峰值位置附近，恢复具有转子不旋转的水平的脉冲从与输出驱动脉冲的电动机驱动器端子不同的端子输出。此外，通过基于电源电压调整恢复脉冲的宽度和输出定时，可以针对电源电压优化功率恢复。

3. 发明申请

US20120307602A1 ELECTRONIC WATCH 有权
标题翻译：电子手表
公开(公告)号：US20120307602A1
公开(公告)日：2012-12-06
申请号：US13578929
申请日：2011-02-09
申请人： Masaaki Namekawa , Yu Takyo
发明人： Masaaki Namekawa , Yu Takyo
IPC分类号： G04C3/14
CPC分类号： H02P8/02 , G04C3/143 , G04G19/10
摘要： When recovering power from a motor driver, a forward voltage across a parasitic diode can reduce the recovery efficiency, and control of a power recovery operation can take an unnecessarily long time. In order to address this problem, the power recovery operation is performed as follows without being affected by a parasitic diode: near a peak position of a waveform of an induced current resulting from free oscillation of a rotor after a drive pulse is output, a recovery pulse having such a level that the rotor does not rotate is output from a terminal different from a motor driver terminal to which the drive pulse was output. Also, by adjusting the width and output timing of the recovery pulse based on a power supply voltage, the power recovery can be optimized for the power supply voltage.
摘要翻译：当从电动机驱动器恢复供电时，跨越寄生二极管的正向电压可以降低恢复效率，并且电力恢复操作的控制可能需要不必要的长时间。为了解决这个问题，功率恢复操作如下进行，而不受寄生二极管的影响：驱动脉冲输出后转子的自由振荡导致的感应电流的波形的峰值位置附近，恢复具有转子不旋转的水平的脉冲从与输出驱动脉冲的电动机驱动器端子不同的端子输出。此外，通过基于电源电压调整恢复脉冲的宽度和输出定时，可以针对电源电压优化功率恢复。

4. 发明申请

US20120204640A1 ELECTRONIC WATCH 有权
标题翻译：电子手表
公开(公告)号：US20120204640A1
公开(公告)日：2012-08-16
申请号：US13500829
申请日：2010-10-06
申请人： Yu Takyo , Toshiaki Fukushima , Akira Shiota , Toshinari Maeda , Nobuaki Suzuki
发明人： Yu Takyo , Toshiaki Fukushima , Akira Shiota , Toshinari Maeda , Nobuaki Suzuki
IPC分类号： G01P15/08
CPC分类号： G04C3/143 , H02P8/02
摘要： Provided is an electronic watch capable of, even if an indicating hand having a large moment of inertia is used, accurately determining success and failure of rotation. The electronic watch detects rotation by using a first detection mode determination circuit (12) and a second detection mode determination circuit (13). In the electronic watch, a timing counter (14) for measuring a time after an output of a normal drive pulse is followed by a detection pulse selection circuit (151) provided as changing means for changing a width or a frequency of a detection pulse in accordance with an output time of the detection pulse. The detection pulse detects the rotation and simultaneously serves as an electromagnetic brake for a rotor (10). The electromagnetic brake for the rotor (10) is controlled by changing the width or the frequency of the detection pulse in a predetermined period, thereby achieving an accurate rotation detection. Alternatively, the setting of the width or the frequency of the detection pulse may be changed in accordance with a determination result in a first detection mode, an output voltage of a power supply, and a driving power of the normal drive pulse, instead of the output timing of the detection pulse.
摘要翻译：提供一种能够即使具有大惯性矩的指示手也能够精确地确定旋转成功和失败的电子手表。电子表通过使用第一检测模式确定电路（12）和第二检测模式确定电路（13）检测旋转。在电子表中，用于测量正常驱动脉冲输出之后的时间的定时计数器（14）后面是检测脉冲选择电路（151），该检测脉冲选择电路（151）被设置为改变装置，用于改变检测脉冲的宽度或频率根据检测脉冲的输出时间。检测脉冲检测旋转，同时用作转子（10）的电磁制动器。用于转子（10）的电磁制动器通过在预定时间段内改变检测脉冲的宽度或频率来控制，从而实现精确的旋转检测。或者，可以根据第一检测模式，电源的输出电压和正常驱动脉冲的驱动功率的确定结果来改变检测脉冲的宽度或频率的设置，而不是检测脉冲的输出定时。

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