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    • 3. 发明授权
    • Electronic watch
    • 电子手表
    • US4312058A
    • 1982-01-19
    • US898397
    • 1978-04-20
    • Masaharu ShidaAkira TorisawaMakoto Ueda
    • Masaharu ShidaAkira TorisawaMakoto Ueda
    • G04C3/14G04C10/00G04G19/00H02P8/02H02P8/12G04B9/00G04B19/04G04F5/00
    • G04G19/00G04C3/143
    • In an electronic watch having a stepping motor, a battery voltage detecting circuit, a rotation detecting circuit for indicating rotation or non-rotation of the stepping motor and a motor driving power control circuit for applying a higher power drive pulse to the motor than a normal drive pulse upon detection of non-rotation, the operation of the rotation detecting circuit is inhibited upon indication of a low battery voltage condition and the motor is driven continuously with the higher power drive pulses for the extent of the battery low voltage condition. In this way, the electronic watch can be operated stably when the battery is at the end of its life and operated with lower power consumption during the time when the battery is operated at full voltage.
    • 在具有步进电动机的电子手表中,电池电压检测电路,用于指示步进电动机的旋转或不旋转的旋转检测电路以及用于向电动机施加较高功率驱动脉冲的电动机驱动功率控制电路而不是正常 在检测到不旋转时的驱动脉冲,在指示低电池电压条件时禁止旋转检测电路的操作,并且在电池低电压条件的程度下,用较高功率驱动脉冲连续驱动电动机。 以这种方式,电池在电池寿命结束时可以稳定地操作,并且在电池以全电压运行的时间内以较低的功耗运行。
    • 6. 发明授权
    • Electronic timepiece
    • 电子钟表
    • US4217751A
    • 1980-08-19
    • US898438
    • 1978-04-20
    • Akira TorisawaMakoto UedaKazuhiro AsanoKatsuhiko SatohMasaaki MandaiMasaharu Shida
    • Akira TorisawaMakoto UedaKazuhiro AsanoKatsuhiko SatohMasaaki MandaiMasaharu Shida
    • G04C3/14H02P8/00H02P8/02G04C3/00
    • G04C3/143
    • In an electronic timepiece having a stepping motor, a drive pulse is produced for normally driving the motor, a detecting pulse is generated for detecting whether the motor has rotated in response to the last drive pulse and a correction pulse is produced for driving the motor when non-rotation has been detected. A current limiting resistor is disposed in series with the motor for limiting the current thereto and a switching transistor is connected across the current limiting resistor to short circuit same to effect an increase in the current to the motor. During the detecting pulse, the voltage across the current limiting resistor is compared to a predetermined value. If the voltage is above the predetermined value, which indicates that the motor has not rotated in response to the last drive pulse, the switching means is actuated to short circuit the current limiting resistor and the correction pulse is applied to the motor during the resulting increased current condition so that the motor will be enabled to rotate even when a higher torque load is applied thereto. In this way, a decreased amount of current is used during the normal torque loading condition on the motor.
    • 在具有步进电机的电子钟表中,产生用于正常驱动电动机的驱动脉冲,产生用于检测电动机是否响应于最后一个驱动脉冲而旋转的检测脉冲,并且产生用于驱动电动机的校正脉冲 已经检测到不旋转。 与电动机串联设置限流电阻器,用于限制电流,并且开关晶体管连接在限流电阻两端以短路相同,以实现电动机电流的增加。 在检测脉冲期间,将限流电阻两端的电压与预定值进行比较。 如果电压高于预定值,这表明电动机响应于最后一个驱动脉冲没有旋转,则开关装置被致动以使限流电阻短路,并且在产生的增加期间将校正脉冲施加到电动机 即使当施加较大的扭矩负载时,电动机也能够旋转。 以这种方式,在电动机的正常转矩负载状态期间使用减少的电流量。
    • 8. 发明授权
    • Detection device of electronic timepiece
    • 电子表的检测装置
    • US4321521A
    • 1982-03-23
    • US100222
    • 1979-12-04
    • Makoto UedaAkira TorisawaShuji OtawaMasaaki MandaiMasaharu ShidaKatsuhiko Sato
    • Makoto UedaAkira TorisawaShuji OtawaMasaaki MandaiMasaharu ShidaKatsuhiko Sato
    • G04C3/14H02P8/02G05B19/40
    • G04C3/143H02P8/02
    • An electronic timepiece has a stepping motor comprised of a stator, rotor and driving coil. A wave shaping circuit produces normal driving pulses and correction driving pulses having a longer pulse width than the normal driving pulses. A rotor rotation detection device detects rotation and non-rotation of the rotor after normal driving pulses are applied to the driving coil and in response to detection of a non-rotation condition, a correction driving pulse is applied to the driving coil. A magnetic field detection device detects the presence and absence of an external alternating magnetic field and in response to detection of a magnetic field, a driving pulse of longer pulse width than the correction driving pulses is applied to the driving coil to effect rotor rotation. The magnetic field detection device operates before the normal driving pulses are applied to the driving coil so that in the event of detection of a magnetic field, a driving pulse of sufficiently long pulse width will be applied to the driving coil to effect rotor rotation. In response to detection of an external alternating magnetic field by the magnetic field detection device, operation of the rotor rotation detection device is inhibited thereby conserving power and preventing mis-operation of the stepping motor.
    • 电子钟表具有由定子,转子和驱动线圈组成的步进电机。 波形整形电路产生具有比正常驱动脉冲更长的脉冲宽度的正常驱动脉冲和校正驱动脉冲。 转子旋转检测装置在将正常的驱动脉冲施加到驱动线圈之后并响应于非旋转状态的检测来检测转子的旋转和不旋转,将校正驱动脉冲施加到驱动线圈。 磁场检测装置检测外部交变磁场的存在和不存在,并且响应于磁场的检测,将比校正驱动脉冲更长的脉冲宽度的驱动脉冲施加到驱动线圈以实现转子旋转。 磁场检测装置在将正常的驱动脉冲施加到驱动线圈之前工作,使得在检测到磁场的情况下,将对驱动线圈施加足够长的脉冲宽度的驱动脉冲以实现转子旋转。 响应于通过磁场检测装置检测外部交变磁场,禁止转子旋转检测装置的操作,从而节省电力并防止步进电机的误操作。
    • 9. 发明授权
    • Magnetic field detection device for electronic timepiece
    • 电子表的磁场检测装置
    • US4321519A
    • 1982-03-23
    • US33230
    • 1979-04-25
    • Makoto UedaAkira TorisawaShuji OtawaMasaaki MandaiMasaharu ShidaKatsuhiko Sato
    • Makoto UedaAkira TorisawaShuji OtawaMasaaki MandaiMasaharu ShidaKatsuhiko Sato
    • G01R33/02G04C3/14G04G9/00H02P8/02G05B19/40
    • G04C3/143G01R33/02G04G9/0064
    • An electronic timepiece of the type having a frequency dividing circuit, and a drive circuit for driving a motor having a rotor, a stator and a driving coil, is provided with a magnetic field detection device comprised of a low impedance closed loop including a low resistance element and the driving coil and a high impedance closed loop including a high resistance element and the driving coil. The driving coil develops an induced voltage when placed in an external alternating magnetic field and also functions to drive the rotor. The strength of the alternating magnetic field is measured by the voltage level developed across the high resistance element and the measuring sensitivity is improved by alternately switching between the low impedance closed loop and the high impedance closed loop. In response to the detection output of the magnetic field detection device, the effective power applied to the driving coil is increased so that the motor performance is not adversely affected by the external alternating magnetic field.
    • 具有分频电路的类型的电子钟表和用于驱动具有转子,定子和驱动线圈的电动机的驱动电路设置有包括低电阻的低阻闭环的磁场检测装置 元件和驱动线圈以及包括高电阻元件和驱动线圈的高阻抗闭环。 驱动线圈在放置在外部交变磁场中时产生感应电压,并且还用于驱动转子。 交变磁场的强度是通过高电阻元件上产生的电压电平来测量的,并且通过在低阻抗闭环和高阻抗闭环之间交替切换来提高测量灵敏度。 响应于磁场检测装置的检测输出,施加到驱动线圈的有效功率增加,使得电动机性能不受外部交变磁场的不利影响。
    • 10. 发明授权
    • Electronic timepiece with rotation detector
    • 带旋转探测器的电子钟表
    • US4272837A
    • 1981-06-09
    • US898400
    • 1978-04-20
    • Makoto UedaAkira TorisawaKatsuhiko SatohMasaharu ShidaMasaaki MandaiKazuhiro Asano
    • Makoto UedaAkira TorisawaKatsuhiko SatohMasaharu ShidaMasaaki MandaiKazuhiro Asano
    • G04C3/14H02P8/02G04B19/04G04C19/00
    • G04C3/143
    • An electronic timepiece including a dividing circuit for developing different output pulse signals having different respective pulse repetition rates, a stepping motor and a drive circuit responsive to control signals for driving the stepping motor at a normal rate and for applying a correction pulse to the stepping motor according to the control signals. A pulse combining circuit combines the different output pulse signals from the dividing circuit for generating control signals and for applying the control signals to the drive circuit. The pulse combining circuit normally generates a control signal effective to drive the stepping motor at a normal rate, and the pulse combining circuit is responsive to a correction signal to control the drive circuit to apply a corrective pulse to the stepping motor. A detection circuit detects rotation and non-rotation of the stepping motor rotor and generates a detection voltage signal indicative of the state of rotation of the rotor. A voltage comparing circuit compares the detection voltage signal with a standard voltage value and applies a correction signal to the pulse combining circuit when non-rotation of the stepping rotor is detected after a drive pulse is applied to the stepping motor.
    • 一种电子钟表,包括用于开发具有不同的脉冲重复率的不同输出脉冲信号的分频电路,响应用于以正常速率驱动步进电机的控制信号的步进电机和驱动电路,以及向步进电机施加校正脉冲 根据控制信号。 脉冲组合电路组合用于产生控制信号的分频电路的不同输出脉冲信号,并将控制信号施加到驱动电路。 脉冲组合电路通常产生有效地以正常速率驱动步进电机的控制信号,并且脉冲组合电路响应校正信号来控制驱动电路向步进电机施加校正脉冲。 检测电路检测步进电机转子的旋转和不旋转,并产生表示转子旋转状态的检测电压信号。 电压比较电路将检测电压信号与标准电压值进行比较,并且在将驱动脉冲施加到步进电机之后检测到步进转子的非旋转时,向脉冲组合电路施加校正信号。