公开(公告)号：US4209971A

公开(公告)日：1980-07-01

申请号：US898535

申请日：1978-04-20

申请人： Makoto Ueda ,  Masaharu Shida ,  Akira Torisawa

发明人： Makoto Ueda ,  Masaharu Shida ,  Akira Torisawa

IPC分类号： G04C3/14 ,  H02P8/00 ,  H02P8/02 ,  G04C3/00

CPC分类号： G04C3/143

摘要： An electronic timepiece comprises a detection circuit provided with a resistance element which discriminates rotation and non-rotation of a stepping motor by variation of an oscillating circuit, a dividing circuit, a pulse composing circuit, a stepping motor driving circuit, a two phase driving system stepping motor and an inductance, wherein said resistance element is directly connected across a coil output of the stepping motor within an integrated circuit.

摘要翻译： 电子钟表包括检测电路，该检测电路具有通过振荡电路的变化来区分步进电机的旋转和不旋转的电阻元件，分频电路，脉冲构成电路，步进电机驱动电路，双相驱动系统 步进电机和电感，其中所述电阻元件在集成电路内直接连接在步进电机的线圈输出端。

公开(公告)号：US4352172A

公开(公告)日：1982-09-28

申请号：US144662

申请日：1980-04-28

申请人： Makoto Ueda ,  Akira Torisawa ,  Shuji Otawa ,  Masaaki Mandai ,  Masaharu Shida ,  Katsuhiko Sato

发明人： Makoto Ueda ,  Akira Torisawa ,  Shuji Otawa ,  Masaaki Mandai ,  Masaharu Shida ,  Katsuhiko Sato

IPC分类号： G01R33/028 ,  G04C3/14 ,  H02P8/02 ,  G05B19/40 ,  G04B19/00 ,  G04F5/00

CPC分类号： G04C3/143 ,  G01R33/028

摘要： An electronic timepiece has a stepping motor comprised of a stator, rotor and coil, and circuitry for producing and applying driving pulses to the coil to effect stepwise rotation of the rotor. The presence of an external alternating magnetic field is detected by switching the coil from an open-circuit condition to a low impedance loop comprised of the coil and a low impedance element. The rotation of the rotor is detected by alternately switching the coil between the low impedance loop and a high impedance loop comprised of the coil and a high impedance element. Control circuitry controls the switching operations to ensure that the magnetic field detection and the rotor rotation detection are carried out at different times.

摘要翻译： 电子钟表具有由定子，转子和线圈组成的步进电机，以及用于产生并向线圈施加驱动脉冲以实现转子的逐步旋转的电路。 通过将线圈从开路状态切换到由线圈和低阻抗元件组成的低阻抗回路来检测外部交变磁场的存在。 通过交替地切换低阻抗环路和由线圈和高阻抗元件组成的高阻抗回路之间的线圈来检测转子的旋转。 控制电路控制切换操作，以确保在不同时间进行磁场检测和转子旋转检测。

公开(公告)号：US4312058A

公开(公告)日：1982-01-19

申请号：US898397

申请日：1978-04-20

申请人： Masaharu Shida ,  Akira Torisawa ,  Makoto Ueda

发明人： Masaharu Shida ,  Akira Torisawa ,  Makoto Ueda

IPC分类号： G04C3/14 ,  G04C10/00 ,  G04G19/00 ,  H02P8/02 ,  H02P8/12 ,  G04B9/00 ,  G04B19/04 ,  G04F5/00

CPC分类号： G04G19/00 ,  G04C3/143

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4276626A

公开(公告)日：1981-06-30

申请号：US898404

申请日：1978-04-20

申请人： Katsuhiko Satoh ,  Kazuhiro Asano ,  Masaaki Mandai ,  Makoto Ueda ,  Akira Torisawa ,  Masaharu Shida

发明人： Katsuhiko Satoh ,  Kazuhiro Asano ,  Masaaki Mandai ,  Makoto Ueda ,  Akira Torisawa ,  Masaharu Shida

IPC分类号： G04C3/14 ,  H02P8/02 ,  G04B19/04 ,  G04C3/00

CPC分类号： G04C3/143

摘要： In an electronic watch having an oscillator for producing a time base signal and stepping motor, drive pulses are produced for normally driving the motor under normal load conditions. The rotation and non-rotation of the motor in response to the last drive pulse is detected in response to a detecting pulse, and if non-rotation has been detected, a predetermined plurality of correction pulses are applied to the motor for driving same, the correction pulses being sufficient to drive the motor under a high torque loading. In this way, power consumption is decreased since a high power driving is saved only for high torque loading conditions.

摘要翻译： 在具有用于产生时基信号和步进电机的振荡器的电子手表中，产生用于在正常负载条件下正常驱动电动机的驱动脉冲。 响应于检测脉冲检测电动机响应于最后一个驱动脉冲的旋转和不旋转，并且如果已经检测到不旋转，则将预定的多个校正脉冲施加到用于驱动电动机的电动机， 校正脉冲足以在高扭矩负载下驱动电动机。 以这种方式，由于仅在高扭矩负载条件下节省高功率驱动，所以功耗降低。

公开(公告)号：US4271496A

公开(公告)日：1981-06-02

申请号：US898396

申请日：1978-04-20

申请人： Masaharu Shida ,  Akira Torisawa ,  Makoto Ueda ,  Masaaki Mandai ,  Katsuhiko Sato ,  Kazuhiro Asano

发明人： Masaharu Shida ,  Akira Torisawa ,  Makoto Ueda ,  Masaaki Mandai ,  Katsuhiko Sato ,  Kazuhiro Asano

IPC分类号： G04C3/14 ,  H02P8/02 ,  G04B19/04 ,  G04C3/00

CPC分类号： G04C3/143

摘要： An electronic timepiece including a stepping motor and a time-indicating hand moved in a stepwise manner by the stepping motor for indicating time. During normal operation the time-indicating hand moves at a normal periodic rate. When operating conditions such as a low battery cause the stepping motor to not rotate, correcting pulses are applied to the stepping motor to supply additional energy to it to cause it to rotate. Additionally, the correcting pulses cause the rotor, and the time-indicating hand to rotate at a rate different from the normal periodic rate to alert the timepiece user that some condition exists tending to cause non-rotation of the stepping motor.

摘要翻译： 一种电子表，其包括步进电机和指示手，其由步进电机逐步地移动以指示时间。 在正常操作期间，指示手以正常的周期速率移动。 当诸如低电量的操作条件导致步进电机不旋转时，校正脉冲被施加到步进电机以向其提供额外的能量以使其旋转。 此外，校正脉冲引起转子，并且指示指针以与正常周期速率不同的速率旋转，以提醒钟表用户存在倾向于引起步进电机不旋转的某些状况。

公开(公告)号：US4217751A

公开(公告)日：1980-08-19

申请号：US898438

申请日：1978-04-20

申请人： Akira Torisawa ,  Makoto Ueda ,  Kazuhiro Asano ,  Katsuhiko Satoh ,  Masaaki Mandai ,  Masaharu Shida

发明人： Akira Torisawa ,  Makoto Ueda ,  Kazuhiro Asano ,  Katsuhiko Satoh ,  Masaaki Mandai ,  Masaharu Shida

IPC分类号： G04C3/14 ,  H02P8/00 ,  H02P8/02 ,  G04C3/00

CPC分类号： G04C3/143

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4204397A

公开(公告)日：1980-05-27

申请号：US898399

申请日：1978-04-20

申请人： Kazuhiro Asano ,  Makoto Ueda ,  Akira Torisawa ,  Masaharu Shida ,  Katsuhiko Satoh ,  Masaaki Mandai

发明人： Kazuhiro Asano ,  Makoto Ueda ,  Akira Torisawa ,  Masaharu Shida ,  Katsuhiko Satoh ,  Masaaki Mandai

IPC分类号： G04C3/14 ,  H02P8/02 ,  G04C3/00

CPC分类号： G04C3/143

摘要： An electronic timepiece reduces power consumption by normally driving the stepping motor with a short pulse and driving the motor with a wide pulse under heavy load conditions by sensing the rotor position. A detection circuit senses the voltage drop across a detection element in series with the motor coil for driving a first detection pulse and senses again for driving a second detection pulse. If the second voltage drop is larger, then the rotor is not rotating whereupon the wide pulse is used to drive the motor.

摘要翻译： 电子钟表通过以短脉冲正常驱动步进电机并且通过感测转子位置在重负载条件下以宽脉冲驱动电动机来降低功耗。 检测电路感测与用于驱动第一检测脉冲的电动机线圈串联的检测元件上的电压降，并再次感测以驱动第二检测脉冲。 如果第二压降较大，则转子不旋转，因此使用宽脉冲来驱动电机。

公开(公告)号：US4321521A

公开(公告)日：1982-03-23

申请号：US100222

申请日：1979-12-04

申请人： Makoto Ueda ,  Akira Torisawa ,  Shuji Otawa ,  Masaaki Mandai ,  Masaharu Shida ,  Katsuhiko Sato

发明人： Makoto Ueda ,  Akira Torisawa ,  Shuji Otawa ,  Masaaki Mandai ,  Masaharu Shida ,  Katsuhiko Sato

IPC分类号： G04C3/14 ,  H02P8/02 ,  G05B19/40

CPC分类号： G04C3/143 ,  H02P8/02

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4321519A

公开(公告)日：1982-03-23

申请号：US33230

申请日：1979-04-25

申请人： Makoto Ueda ,  Akira Torisawa ,  Shuji Otawa ,  Masaaki Mandai ,  Masaharu Shida ,  Katsuhiko Sato

发明人： Makoto Ueda ,  Akira Torisawa ,  Shuji Otawa ,  Masaaki Mandai ,  Masaharu Shida ,  Katsuhiko Sato

IPC分类号： G01R33/02 ,  G04C3/14 ,  G04G9/00 ,  H02P8/02 ,  G05B19/40

CPC分类号： G04C3/143 ,  G01R33/02 ,  G04G9/0064

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4272837A

公开(公告)日：1981-06-09

申请号：US898400

申请日：1978-04-20

申请人： Makoto Ueda ,  Akira Torisawa ,  Katsuhiko Satoh ,  Masaharu Shida ,  Masaaki Mandai ,  Kazuhiro Asano

发明人： Makoto Ueda ,  Akira Torisawa ,  Katsuhiko Satoh ,  Masaharu Shida ,  Masaaki Mandai ,  Kazuhiro Asano

IPC分类号： G04C3/14 ,  H02P8/02 ,  G04B19/04 ,  G04C19/00

CPC分类号： G04C3/143

摘要： 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.

摘要翻译： 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。