US3754391A - Driving arrangement for quartz vibrator timepieces - Google Patents

Driving arrangement for quartz vibrator timepieces Download PDF

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Publication number
US3754391A
US3754391A US00211502A US3754391DA US3754391A US 3754391 A US3754391 A US 3754391A US 00211502 A US00211502 A US 00211502A US 3754391D A US3754391D A US 3754391DA US 3754391 A US3754391 A US 3754391A
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Prior art keywords
switch
circuit means
pulse
circuit
waveform shaping
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Expired - Lifetime
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US00211502A
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English (en)
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K Fujita
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Suwa Seikosha KK
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Suwa Seikosha KK
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor

Definitions

  • ABSTRACT Foreign Application Priority Data
  • 58/23 R, 58/34 motor driving circuit A Pulse motor ii Operatively 511 1111. C1.
  • said motor driver circuit which also includes a [58] Field of Search 58/23 R, 23 A, 23 D, sub-circuit having a monostable multivibrawh
  • the 58/23 AC, 3 5 R 5 310/15, 318/119, ple binary dividers and waveform shaping circuits are 126, 129 134 preset by a make-switch so as to produce motor driver signals for application to said motor driver circuit im- 5 References Cited mediately after the make-switch is opened, while pulses UNITED STATES PATENTS are applied by said sub-circuit to said pulse motor during such resetting.
  • This invention relates to timepieces incorporating quartz vibrators, and in particular, to timepieces incorporating divider circuits formed from complementary field effect transistors of the MOS (metal oxide semiconductor) integrated circuit type, and further, having a pulse motor driven electro-magnetically as the electro-mechanical transducer. Specifically, the invention relates to an arrangement for quickly changing the time SUMMARY OF THE INVENTION Generally speaking, in accordance with the invention, a time keeping oscillator means is provided incorporating a quartz vibrator for producing a high frequency signal.
  • Said high frequency signal is divided by ripple binary dividers and shaped by waveform shaping circuits to form a low frequency pulse signal.
  • the latter signal is applied by a motor driver circuit to a pulse motor to provide time indication.
  • a make-switch is provided for presetting said ripple binary dividers and waveform shaping circuits, said ripple binary dividers and waveform shaping circuits being adapted to produce said low frequency pulse signal immediately after said make-switch is opened.
  • the ripple binary dividers and'waveform shaping circuits are preferably formed from complementary field effect transistors while the motor driving circuit is preferably formed from bipolar transistors.
  • said motor driver circuit may include asub-circuit incorporating-a monostable multivibrator coupled to said'pulse motor andsaid make-switch so that said multivibrator is triggered to apply pulses to said pulse motor when said make-switch is turned on.
  • a further object of the arrangement according to the invention is to provide an-arrangement wherein a single switch serves as both a reset switch and a quick operation switch.
  • the invention accordingly comprises the features of construction, combinations of elements, and arrangement ofparts which'will be exemplified in the constructionshereinafter set forth,-and the scope of the inventionwillbe indicated in the claims.
  • FIG. 1 is a block diagram of the timepiece incorporating a quartz vibrator in accordance with the present invention
  • FIG. 2 is a detailed circuit diagram of one divider stage of the timepiece of FIG. 1 also depicting the waveforms thereof;
  • FIG. 3 is a detailed circuit diagram of a time delay circuit incorporated in the timepiece of FIG. 1;
  • FIG. 4 depicts the waveforms at various points in the divider and waveform shaping circuits of the timepiece of FIG. 1;
  • FIG. 5 is a top plan schematic representation of the motor arrangement of a wristwatch according to the invention.
  • FIG. 6 depicts the pulse waveform associated with the quick operation of the timepiece of FIG. 1.
  • Said divider circuit includes a plurality of series connected flip flops F F F F, Said flip flops define ripple binary counters and are preferably formed from complementary field effect transistors (COS MOS). Such transistors consume extremely small amounts of electric power, and are particularly suitable for Wristwatches wherein the power available for consumption is limited.
  • the output signal produced-bysaid divider circuit at flip flop F has a two-second period for application as will be more particularly described below.
  • the circuit of one stage of said divider circuit is depicted in FIG. 2, along with the waveforms of the various inputs and outputs thereof.
  • the input to said stage consists of a signal of a first frequencyd: and the inverse thereof a;
  • the circuit of FIG. 2 produces an output signal Q ofa frequency one half of the frequency of the signal applied to the input, and
  • a further input TR is coupled toinverter I .
  • saidinverter When a signal isappliedto input FR, saidinverteris broughtto a'high level toiproduce an outputsignal and thedivider stage is preset.
  • the divider circuit of block 8, ofFlG. I is connected to a time delay circuit D, a circuitdiagram of whichappears in FIG. 3. Said time delaycireuit is alsoformed of complementary field effect transistors (COS MOS) in order to minimize the power consumption thereof.
  • the input to the inputs of time'delay circuit D consists of the output signals Q and O fromdivider stage-F, as wellas the outputQ, from the divider .stage F,
  • the output of time delay circuit D. are the. signals Q and the inverse thereof 6,, Asmore particularly shown from the waveformsoffFlG.
  • the output signal 0, corresponds to the output signal 0,, of stage F, delayed by an amount equal to one p fie width of the output signal Q, of stage F,.
  • the input PR is also applied to the time delay circuit of FIG. 3 for presetting thereof and for producing an output pulse from said time delay circuit.
  • the output signals 0,, and 1,, of the last stage F, of the divider circuit and the outputs Q and 6,, of the time delay circuit D are applied to the NOR and NAND gates defining the outputs 0,, O O and O, of block B
  • Said gates and time delay circuit D define a wave shaping circuit which produce the complementary pulse waveforms depicted in FIG. 4 and required to drive the pulse motor incorporated in the timepiece according to the invention.
  • the motor driving circuit according to the invention is depicted in block B of FIG. I.
  • Said block includes a preset switch SW, which, when opened, presets the driving and waveshaping circuits of block B, and produces output signals at outputs O, and 0,.
  • the motor driver circuit of block 8,, of FIG. 1 includes a main driving circuit consisting of bipolar transistors T,, T T and T, When preset switch SW is in the open or normal state, then the output signals 0,, and 0 are applied to transistors T, and T, and the output signals 0 and O to transistors T, and T to alternately render pairs of transistors T, and T, and T, and T conductive.
  • the placement of each pair of transistors in a conductive state serves to apply a reverse current pulse to the coil L of the pulse motor of the wristwatch according to the invention as more particularly shown in FIG. 5, to drive said pulse motor.
  • the wristwatch according to the invention includes an electronic circuit unit IC, a battery B and a gear train 3, 4, of which reference numeral 4 refers to the second gear.
  • Said gear train is coupled to the time indication means, such as the hands of the watch.
  • a pulse motor is provided consisting of a motor driving coil L, a stator S, and a rotor r.
  • the rotor is preferably divided and magnetized to define six magnetic poles so that it rotates about 60 in response to each drive pulse of a one second period.
  • preset switch SW When preset switch SW is opened, block B, is immediately operated to place transistors T, and T, of the motor driver circuit in the conductive state. At this time, a current pulse flows from point a to point b 4 vanced by one second.
  • the quick repetition of the opening and closing of preset switch SW makes it possible to drive the second hand quickly by one second increments with each operation of said preset switch;
  • PR represents the voltageof the preset line
  • 1, represents the current pulses through coil L
  • MM represents the collector electrode voltage of transistor T of said monostable multivibrator.
  • a current pulse is applied to coil L upon the closing of switch SW to the monostable multivibrator and upon the opening of said. switch from the circuitry of block 3,.
  • a timepiece comprising time keeping oscillator means including a quartz vibrator for producing a high frequency signal; divider means for dividing said high frequency signal to a low frequency timing signal; waveform shaping circuit means for fonning a low frequency pulse signal from said timing signal; pulse motor means; motor driver circuit means responsive to said low frequency pulse signal for driving said pulse motor; make-switch means coupled to said divider and waveform shaping circuit means for presetting thereof in response to the operation of said make-switch, said divider and waveform shaping circuit means being adapted to produce said low frequency pulse signal immediately after said make-switch is opened, said motor driver circuit means including main circuit means operatively coupled to said waveform shaping circuit means for driving said pulse motor in response to said low frequency pulse signal and sub-circuit means coupled to said make-switch and said pulse motor means, said subcircuit means including monostable multivibrator means triggered by the closing of said make-switch to apply a driving pulse to said pulse motor.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
US00211502A 1970-12-26 1971-12-23 Driving arrangement for quartz vibrator timepieces Expired - Lifetime US3754391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45118908A JPS5127151B1 (enrdf_load_stackoverflow) 1970-12-26 1970-12-26

Publications (1)

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US3754391A true US3754391A (en) 1973-08-28

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US00211502A Expired - Lifetime US3754391A (en) 1970-12-26 1971-12-23 Driving arrangement for quartz vibrator timepieces

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US (1) US3754391A (enrdf_load_stackoverflow)
JP (1) JPS5127151B1 (enrdf_load_stackoverflow)
GB (1) GB1344648A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939643A (en) * 1973-06-07 1976-02-24 Citizen Watch Co., Ltd. Crystal-controlled electronic timepiece with CMOS switching and frequency-dividing circuits
FR2283478A1 (fr) * 1974-08-30 1976-03-26 Ebauches Sa Circuit electronique pour montre
FR2331080A1 (fr) * 1975-11-04 1977-06-03 Seiko Instr & Electronics Montre electronique
FR2348519A1 (fr) * 1976-04-16 1977-11-10 Seiko Instr & Electronics Montre electronique a compensation du jeu entre-dents
US4133169A (en) * 1974-08-30 1979-01-09 Ebauches S.A. Electronic circuit for a quartz crystal watch
US4150536A (en) * 1976-01-28 1979-04-24 Citizen Watch Company Limited Electronic timepiece
US4277841A (en) * 1979-03-14 1981-07-07 General Time Corporation Elapsed time indicator
US4382694A (en) * 1976-07-09 1983-05-10 Seiko Koki Kabushiki Kaisha Timepiece circuit for compensating time lag joined with reset releasing
US20030102828A1 (en) * 2001-11-13 2003-06-05 Hiromi Kusakabe Driving device for oscillatory actuator
CN102355244A (zh) * 2011-07-28 2012-02-15 四川和芯微电子股份有限公司 分频器复位电路及系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773652A (en) * 1980-10-24 1982-05-08 Ashida Seisakusho:Kk Method and device for measuring vaporing water of timber decompressing dryer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363410A (en) * 1966-01-25 1968-01-16 Suwa Seikosha Kk Apparatus for adjusting electric timepieces
US3541779A (en) * 1968-03-19 1970-11-24 Corning Glass Works Electronic timepiece
US3643418A (en) * 1969-05-29 1972-02-22 Vogel Paul Time-setting device for an electronic watch
US3668859A (en) * 1969-07-03 1972-06-13 Vogel Paul Time setting device for an electronic clock
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363410A (en) * 1966-01-25 1968-01-16 Suwa Seikosha Kk Apparatus for adjusting electric timepieces
US3541779A (en) * 1968-03-19 1970-11-24 Corning Glass Works Electronic timepiece
US3643418A (en) * 1969-05-29 1972-02-22 Vogel Paul Time-setting device for an electronic watch
US3668859A (en) * 1969-07-03 1972-06-13 Vogel Paul Time setting device for an electronic clock
US3672155A (en) * 1970-05-06 1972-06-27 Hamilton Watch Co Solid state watch

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939643A (en) * 1973-06-07 1976-02-24 Citizen Watch Co., Ltd. Crystal-controlled electronic timepiece with CMOS switching and frequency-dividing circuits
FR2283478A1 (fr) * 1974-08-30 1976-03-26 Ebauches Sa Circuit electronique pour montre
US4133169A (en) * 1974-08-30 1979-01-09 Ebauches S.A. Electronic circuit for a quartz crystal watch
FR2331080A1 (fr) * 1975-11-04 1977-06-03 Seiko Instr & Electronics Montre electronique
US4150536A (en) * 1976-01-28 1979-04-24 Citizen Watch Company Limited Electronic timepiece
FR2348519A1 (fr) * 1976-04-16 1977-11-10 Seiko Instr & Electronics Montre electronique a compensation du jeu entre-dents
US4382694A (en) * 1976-07-09 1983-05-10 Seiko Koki Kabushiki Kaisha Timepiece circuit for compensating time lag joined with reset releasing
US4277841A (en) * 1979-03-14 1981-07-07 General Time Corporation Elapsed time indicator
US20030102828A1 (en) * 2001-11-13 2003-06-05 Hiromi Kusakabe Driving device for oscillatory actuator
US6809485B2 (en) * 2001-11-13 2004-10-26 Teikoku Tsushin Kogyo Co., Ltd. Driving device for oscillatory actuator
CN102355244A (zh) * 2011-07-28 2012-02-15 四川和芯微电子股份有限公司 分频器复位电路及系统
CN102355244B (zh) * 2011-07-28 2013-04-24 四川和芯微电子股份有限公司 分频器复位电路及系统

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Publication number Publication date
GB1344648A (en) 1974-01-23
JPS5127151B1 (enrdf_load_stackoverflow) 1976-08-11

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