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1. 发明公开

EP2876508A1 ELECTRONIC CLOCK 有权
标题翻译：电子时钟
公开(公告)号：EP2876508A1
公开(公告)日：2015-05-27
申请号：EP13823043.8
申请日：2013-07-23
申请人： Citizen Holdings Co., Ltd. , Citizen Watch Co., Ltd.
发明人： TAKYO, Yu , NAMEKAWA, Masaaki
IPC分类号： G04C3/14 , H02P8/02
CPC分类号： G04C3/146 , G04C3/14 , G04C3/143 , H02P8/02 , H02P8/08 , H02P8/18 , H02P8/22
摘要： Provided is an electronic clock which is capable of finely controlling a driving force of a normal driving pulse and suppresses variation in current consumption without an increase in circuit size. The electronic clock is configured so that while a chopped driving pulse is output and in an interval in which coil terminals have heretofore been short-circuited, a pulse is output (hereinafter referred to as adjustment pulse) for control from a terminal that is different from a terminal of a motor driver (8) from which the normal driving pulse has been output. The output pattern of the adj ustment pulse is changed with reference to a driving rank selecting circuit (11) to increase or decrease a motor driving current and hence change the driving force.
摘要翻译：提供一种电子时钟，其能够精细地控制正常驱动脉冲的驱动力，并且在不增加电路尺寸的情况下抑制电流消耗的变化。电子时钟被配置为使得在输出斩波驱动脉冲的同时和在其中线圈端子迄今已被短路的区间中，从不同于该端子的端子输出用于控制的脉冲（在下文中称为调整脉冲）输出正常驱动脉冲的电动机驱动器（8）的端子。参考驱动等级选择电路（11）改变调整脉冲的输出模式，以增加或减小电动机驱动电流并因此改变驱动力。

2. 发明公开

EP2538285A1 ELECTRONIC CLOCK 审中-公开
标题翻译：电子时钟
公开(公告)号：EP2538285A1
公开(公告)日：2012-12-26
申请号：EP11742279.0
申请日：2011-02-09
申请人： Citizen Holdings Co., Ltd. , Citizen Watch Co., Ltd.
发明人： NAMEKAWA, Masaaki , TAKYO, Yu
IPC分类号： G04C10/00 , G04C3/14 , 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电力时，寄生二极管两端的正向电压可能降低恢复效率，并且电力恢复操作的控制可能花费不必要的长时间。为了解决这个问题，在不受寄生二极管影响的情况下执行功率恢复操作：在输出驱动脉冲之后由转子的自由振荡引起的感应电流的波形的峰值位置附近，恢复从与输出驱动脉冲的电动机驱动器端子不同的端子输出具有转子不旋转的电平的脉冲。而且，通过基于电源电压来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. 发明授权

EP2876508B1 ELECTRONIC CLOCK 有权
标题翻译：电子时钟
公开(公告)号：EP2876508B1
公开(公告)日：2018-02-28
申请号：EP13823043.8
申请日：2013-07-23
申请人： Citizen Watch Co., Ltd.
发明人： TAKYO, Yu , NAMEKAWA, Masaaki
IPC分类号： G04C3/14 , H02P8/02
CPC分类号： G04C3/146 , G04C3/14 , G04C3/143 , H02P8/02 , H02P8/08 , H02P8/18 , H02P8/22
摘要： Provided is an electronic clock which is capable of finely controlling a driving force of a normal driving pulse and suppresses variation in current consumption without an increase in circuit size. The electronic clock is configured so that while a chopped driving pulse is output and in an interval in which coil terminals have heretofore been short-circuited, a pulse is output (hereinafter referred to as adjustment pulse) for control from a terminal that is different from a terminal of a motor driver (8) from which the normal driving pulse has been output. The output pattern of the adj ustment pulse is changed with reference to a driving rank selecting circuit (11) to increase or decrease a motor driving current and hence change the driving force.

4. 发明授权

EP2048550B1 ELECTRONIC DEVICE 有权转让
公开(公告)号：EP2048550B1
公开(公告)日：2020-12-09
申请号：EP07791532.0
申请日：2007-07-24
申请人： Citizen Watch Co., Ltd.
发明人： UCHIDA, Takayuki , SATOH, Kohichi , NAMEKAWA, Masaaki
IPC分类号： G04C10/02 , G04G19/00 , G04G19/08 , G04C10/04

5. 发明授权

EP1998237B1 ANALOG ELECTRONIC WATCH 有权转让
标题翻译：模拟电子时钟
公开(公告)号：EP1998237B1
公开(公告)日：2011-09-07
申请号：EP07737643.2
申请日：2007-03-02
申请人： CITIZEN HOLDINGS CO., LTD.
发明人： FUJII, Teruhiko , KITAZAWA, Isao , NAMEKAWA, Masaaki , UCHIDA, Takayuki , HASUMI, Takayuki , IKE, Takuji
IPC分类号： G04C3/00 , G04C9/08
CPC分类号： G04C3/14
摘要： An analo electronic watch is comprised of a display unit (2) for displaying a time by its hands, a step motor (3) for driving the hands, a motor driving unit (4) for controlling and driving the step motor at a prescribed hand driving interval in an ordinary case, a hand position detecting means for detecting positions of the hands, a hand position detecting means control unit (6) for intermittently controlling and driving the hand position detecting means (5) at a first detecting period, which is longer than the hand driving period, and a detecting period changing unit (7) for instructing the hand position detecting means (5) of changing thedetecting period. When the detecting period changing unit (7) detects a detecting period changing condition, while the hand driving period for the step motor (3) is maintained, the detecting period changing unit (7) changes the hand position detecting period of the hand position detecting means (5) from the first detecting period to a second detecting period.

6. 发明公开

EP2048550A1 ELECTRONIC DEVICE 有权转让
标题翻译： ELEKTRONISCHE EINRICHTUNG
公开(公告)号：EP2048550A1
公开(公告)日：2009-04-15
申请号：EP07791532.0
申请日：2007-07-24
申请人： CITIZEN HOLDINGS CO., LTD.
发明人： UCHIDA, Takayuki , SATOH, Kohichi , NAMEKAWA, Masaaki
IPC分类号： G04C10/00 , G04C3/14 , G04G19/02
CPC分类号： G04G19/08 , G01R31/362 , G04C10/02 , G04C10/04 , G04G19/00 , Y10T307/438
摘要： The invention provides a compact and highly reliable electronic apparatus that can be driven by a small-capacity battery, and that can achieve high-speed continuous driving of a load by quickly judging the recovery state of the battery after driving the load. More particularly, the invention provides an electronic apparatus includes a power supply, a load, a load driver for driving the load by the power supply, a power supply state detecter for outputting power supply recovery information by measuring physical quantity of the power supply at predetermined intervals of time after the driving of the load is stopped, and a controller for instructing the load driver to drive the load, based on the power supply recovery information supplied from the power supply state detecter.
摘要翻译：本发明提供一种紧凑且高度可靠的电子设备，其可以由小容量电池驱动，并且可以通过快速判断驱动负载后的电池的恢复状态来实现负载的高速连续驱动。更具体地，本发明提供一种电子设备，包括电源，负载，用于通过电源驱动负载的负载驱动器，电源状态检测器，用于通过以预定的方式测量电源的物理量来输出电源恢复信息基于从电源状态检测器提供的电源恢复信息，停止负载驱动后的时间间隔，以及用于指示负载驱动器驱动负载的控制器。

7. 发明公开

EP1998237A1 ANALOG ELECTRONIC WATCH 有权转让
标题翻译：模拟电子手表
公开(公告)号：EP1998237A1
公开(公告)日：2008-12-03
申请号：EP07737643.2
申请日：2007-03-02
申请人： CITIZEN HOLDINGS CO., LTD.
发明人： FUJII, Teruhiko , KITAZAWA, Isao , NAMEKAWA, Masaaki , UCHIDA, Takayuki , HASUMI, Takayuki , IKE, Takuji
IPC分类号： G04C3/00 , G04C9/08
CPC分类号： G04C3/14
摘要： An analog electronic watch of the present invention includes: a display unit (2) for displaying time with a position of a hand; a stepper motor (3) for driving the hand; a motor drive unit (4) for controlling driving of the stepper motor at a predetermined hand drive cycle at normal time; hand position detection means (5) for detecting a position of the hand; a hand position detection means control unit (6) for intermittently controlling driving of the hand position detection means (5) at a first detection cycle which is longer than the hand drive cycle; and a detection cycle changing unit (7) for instructing the hand position detection means (5) to change the detection cycle. When detecting a predetermined detection cycle changing condition, the detection cycle changing unit (7) changes a cycle at which the hand position detection means (5) detects a position of the hand, from the first detection cycle to a second detection cycle, while maintaining the hand drive cycle at which the stepper motor (3) drives the hand.
摘要翻译：本发明的模拟电子表包括：显示单元（2），用于用手的位置显示时间; 步进电机（3），用于驱动手; 电机驱动单元（4），用于在正常时间以预定的手动驱动周期控制步进电机的驱动; 手部位置检测装置（5），用于检测手部的位置; 指针位置检测装置控制单元（6），用于以比手动驱动周期长的第一检测周期间歇地控制指针位置检测装置（5）的驱动; 以及检测周期变更部（7），指示上述指针位置检测部件（5）变更上述检测周期。当检测到规定的检测周期变更条件时，检测周期变更部（7）将指针位置检测单元（5）检测到的手的位置的周期从第一检测周期变更为第二检测周期，步进电机（3）驱动手的手动驱动循环。

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