CH616819GA3 - Electronic watch including a corrector circuit - Google Patents

Electronic watch including a corrector circuit Download PDF

Info

Publication number
CH616819GA3
CH616819GA3 CH965577A CH965577A CH616819GA3 CH 616819G A3 CH616819G A3 CH 616819GA3 CH 965577 A CH965577 A CH 965577A CH 965577 A CH965577 A CH 965577A CH 616819G A3 CH616819G A3 CH 616819GA3
Authority
CH
Switzerland
Prior art keywords
pulses
counter
div
divider
circuit
Prior art date
Application number
CH965577A
Other versions
CH616819B (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 CH616819B publication Critical patent/CH616819B/en
Application filed filed Critical
Priority to CH965577A priority Critical patent/CH616819GA3/en
Publication of CH616819GA3 publication Critical patent/CH616819GA3/en

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The circuit (Co) for control and shaping of the drive pulses is controlled by the divider (DIV) and actuates the motor (M). The counter (Cc) counts the pulses of the divider (DIV) according to a predetermined modulus, for example (60). With each rotation of the motor (M), the detector (D) emits a signal which is counted by the counter (Cc) having the same modulus as the counter (Co) and whose state is synchronised with the latter. The comparator (Cp) compares the state of the two counters and acts on the circuit (Co) so that it formulates additional pulses or disables the pulses of the divider (DIV) according to the results of the comparison, so that the two counters stay in synchronism. The push-button (4) resets the counter (Cc) to zero for example at the moment of the hourly pip. The number of pulses required to set the hands to time is then immediately formulated by (Co) on command of the comparator (Cp). <IMAGE>
CH965577A 1977-08-05 1977-08-05 Electronic watch including a corrector circuit CH616819GA3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH965577A CH616819GA3 (en) 1977-08-05 1977-08-05 Electronic watch including a corrector circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH965577A CH616819GA3 (en) 1977-08-05 1977-08-05 Electronic watch including a corrector circuit

Publications (2)

Publication Number Publication Date
CH616819B CH616819B (en)
CH616819GA3 true CH616819GA3 (en) 1980-04-30

Family

ID=4354268

Family Applications (1)

Application Number Title Priority Date Filing Date
CH965577A CH616819GA3 (en) 1977-08-05 1977-08-05 Electronic watch including a corrector circuit

Country Status (1)

Country Link
CH (1) CH616819GA3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060806A1 (en) * 1981-03-18 1982-09-22 Asulab S.A. Method of reducing the power consumption of a stepping motor, and device for carrying out this method
WO1985001130A1 (en) * 1983-08-22 1985-03-14 Michel Grosjean Interlocking device for stepping motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060806A1 (en) * 1981-03-18 1982-09-22 Asulab S.A. Method of reducing the power consumption of a stepping motor, and device for carrying out this method
US4446413A (en) * 1981-03-18 1984-05-01 Asulab S.A. Method for reducing the consumption of a stepping motor and device for carrying out the method
EP0137093A3 (en) * 1981-03-18 1985-05-29 Asulab S.A. Method of measuring the voltage induced in the coil of a stepping motor by the rotation of its rotor
WO1985001130A1 (en) * 1983-08-22 1985-03-14 Michel Grosjean Interlocking device for stepping motor

Also Published As

Publication number Publication date
CH616819B (en)

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