CH625384GA3 - - Google Patents

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Publication number
CH625384GA3
CH625384GA3 CH1565577A CH1565577A CH625384GA3 CH 625384G A3 CH625384G A3 CH 625384GA3 CH 1565577 A CH1565577 A CH 1565577A CH 1565577 A CH1565577 A CH 1565577A CH 625384G A3 CH625384G A3 CH 625384GA3
Authority
CH
Switzerland
Prior art keywords
measuring
correction circuit
stepping motor
motor
comparator
Prior art date
Application number
CH1565577A
Other versions
CH625384B (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Publication of CH625384B publication Critical patent/CH625384B/en
Application filed filed Critical
Priority to CH1565577A priority Critical patent/CH625384B/en
Priority to US05/968,918 priority patent/US4300223A/en
Priority to DE2854084A priority patent/DE2854084B2/en
Priority to JP15734678A priority patent/JPS54116976A/en
Publication of CH625384GA3 publication Critical patent/CH625384GA3/xx

Links

Classifications

    • 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
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Stepping Motors (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

The present invention concerns a time-piece comprising a system for detecting the non-rotation of a stepping motor and for making-up lost steps. The detection system comprises a device for measuring the current delivered to the motor, the logic level of the measured signal being used for controlling a correction circuit delivering additional pulses to the stepping motor. The measuring device comprises a short duration measuring pulse generator, a reference signal source, and a comparator having an output which controls the correction circuit.
CH1565577A 1977-12-20 1977-12-20 STEP MOTOR NON-ROTATION DETECTION DEVICE FOR CLOCKWORK PART AND LOST STEPS CATCHING UP. CH625384B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1565577A CH625384B (en) 1977-12-20 1977-12-20 STEP MOTOR NON-ROTATION DETECTION DEVICE FOR CLOCKWORK PART AND LOST STEPS CATCHING UP.
US05/968,918 US4300223A (en) 1977-12-20 1978-12-13 System for making-up steps lost by the motor of a time-piece
DE2854084A DE2854084B2 (en) 1977-12-20 1978-12-14 Arrangement for catching up on steps not carried out by the stepping motor of a timing device
JP15734678A JPS54116976A (en) 1977-12-20 1978-12-20 Device for supplementing blank step for step motor of timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1565577A CH625384B (en) 1977-12-20 1977-12-20 STEP MOTOR NON-ROTATION DETECTION DEVICE FOR CLOCKWORK PART AND LOST STEPS CATCHING UP.

Publications (2)

Publication Number Publication Date
CH625384B CH625384B (en)
CH625384GA3 true CH625384GA3 (en) 1981-09-30

Family

ID=4410860

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1565577A CH625384B (en) 1977-12-20 1977-12-20 STEP MOTOR NON-ROTATION DETECTION DEVICE FOR CLOCKWORK PART AND LOST STEPS CATCHING UP.

Country Status (4)

Country Link
US (1) US4300223A (en)
JP (1) JPS54116976A (en)
CH (1) CH625384B (en)
DE (1) DE2854084B2 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4351039A (en) * 1979-01-08 1982-09-21 Jean-Claude Berney Timepiece with a detector and control circuit for a stepping motor
FR2459579A1 (en) * 1979-06-21 1981-01-09 Suisse Horlogerie ADVANCE DETECTOR OF A STEP BY STEP MOTOR
FR2471077A1 (en) * 1979-12-06 1981-06-12 Ebauches Sa REAL-TIME DETECTION WITH DYNAMIC ROTATION DETECTION FOR STEP-BY-STEP MOTOR
CH644983GA3 (en) * 1981-03-31 1984-09-14
US4423366A (en) * 1981-08-13 1983-12-27 Xerox Corporation Motor drive
US6016044A (en) 1995-09-11 2000-01-18 Alaris Medical Systems, Inc. Open-loop step motor control system
EP1208645B1 (en) * 2000-08-12 2005-10-26 Robert Bosch Gmbh Circuit configuration for generating square wave pulses
US7955357B2 (en) 2004-07-02 2011-06-07 Ellipse Technologies, Inc. Expandable rod system to treat scoliosis and method of using the same
US7862502B2 (en) 2006-10-20 2011-01-04 Ellipse Technologies, Inc. Method and apparatus for adjusting a gastrointestinal restriction device
US20090112262A1 (en) 2007-10-30 2009-04-30 Scott Pool Skeletal manipulation system
US11202707B2 (en) 2008-03-25 2021-12-21 Nuvasive Specialized Orthopedics, Inc. Adjustable implant system
US8382756B2 (en) 2008-11-10 2013-02-26 Ellipse Technologies, Inc. External adjustment device for distraction device
US8197490B2 (en) 2009-02-23 2012-06-12 Ellipse Technologies, Inc. Non-invasive adjustable distraction system
US9622792B2 (en) 2009-04-29 2017-04-18 Nuvasive Specialized Orthopedics, Inc. Interspinous process device and method
US9248043B2 (en) 2010-06-30 2016-02-02 Ellipse Technologies, Inc. External adjustment device for distraction device
WO2012021378A2 (en) 2010-08-09 2012-02-16 Ellipse Technologies, Inc. Maintenance feature in magnetic implant
US8715282B2 (en) 2011-02-14 2014-05-06 Ellipse Technologies, Inc. System and method for altering rotational alignment of bone sections
US10743794B2 (en) 2011-10-04 2020-08-18 Nuvasive Specialized Orthopedics, Inc. Devices and methods for non-invasive implant length sensing
US10016220B2 (en) 2011-11-01 2018-07-10 Nuvasive Specialized Orthopedics, Inc. Adjustable magnetic devices and methods of using same
CA2889769A1 (en) 2012-10-29 2014-05-08 Ellipse Technologies, Inc. Adjustable devices for treating arthritis of the knee
US10751094B2 (en) 2013-10-10 2020-08-25 Nuvasive Specialized Orthopedics, Inc. Adjustable spinal implant
CN111345867A (en) 2014-04-28 2020-06-30 诺威适骨科专科公司 Remote control device
WO2016105524A1 (en) 2014-12-26 2016-06-30 Ellipse Technologies, Inc. Systems and methods for distraction
WO2016134326A2 (en) 2015-02-19 2016-08-25 Nuvasive, Inc. Systems and methods for vertebral adjustment
CN108135589B (en) 2015-10-16 2021-07-23 诺威适骨科专科公司 Adjustable device for treating gonitis
JP6953409B2 (en) 2015-12-10 2021-10-27 ニューベイシブ スペシャライズド オーソペディックス，インコーポレイテッド External adjustment device for extension device
BR112018015504A2 (en) 2016-01-28 2018-12-18 Nuvasive Specialized Orthopedics, Inc. bone transport systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH205066A4 (en) * 1966-02-10 1969-08-15
US3750000A (en) * 1972-06-19 1973-07-31 Ncrc Stepping motor exciter apparatus and method
US4074179A (en) * 1975-06-16 1978-02-14 Warner Electric Brake & Clutch Company Position detection methods and apparatus for stepping motors
US4032827A (en) * 1976-03-15 1977-06-28 Timex Corporation Driver circuit arrangement for a stepping motor
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
JPS53132384A (en) * 1977-04-23 1978-11-18 Seiko Instr & Electronics Ltd Electronic watch

Also Published As

Publication number Publication date
DE2854084A1 (en) 1979-06-21
JPS54116976A (en) 1979-09-11
US4300223A (en) 1981-11-10
DE2854084B2 (en) 1980-04-24
CH625384B (en)

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