CH613356B - TIME HOLDING DEVICE WITH AN ELECTRONICALLY CONTROLLED DRIVE SYSTEM. - Google Patents

TIME HOLDING DEVICE WITH AN ELECTRONICALLY CONTROLLED DRIVE SYSTEM.

Info

Publication number
CH613356B
CH613356B CH157474A CH157474A CH613356B CH 613356 B CH613356 B CH 613356B CH 157474 A CH157474 A CH 157474A CH 157474 A CH157474 A CH 157474A CH 613356 B CH613356 B CH 613356B
Authority
CH
Switzerland
Prior art keywords
frequency
flop
pulse
frequency divider
output
Prior art date
Application number
CH157474A
Other languages
German (de)
Other versions
CH613356GA3 (en
Inventor
Hubert Dipl Ing Effenberger
Walter Seeger
Original Assignee
Braun Ag
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 of CH613356B publication Critical patent/CH613356B/en
Application filed by Braun Ag filed Critical Braun Ag
Publication of CH613356GA3 publication Critical patent/CH613356GA3/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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
    • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the balance
    • 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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
    • G04C3/067—Driving circuits with distinct detecting and driving coils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Automatic Disk Changers (AREA)

Abstract

The display system (4) is driven by an electronically controlled drive device (5, 6, 9). The drive device comprises an unbalance system (5) which is controlled by an electronic switching device (9) and, via a gear (6) drives the display system constructed as a pointer mechanism. The unbalance system (5) can oscillate at a first or at a second frequency. Also present are a quartz oscillator (1) and an electric frequency divider (2). The output of the frequency divider is connected to one input of a bistable flip-flop (3). With each zero passage, the unbalance system generates a voltage pulse which is fed via a pulse-shaping stage (5a) to a further frequency divider (8). The output of the further frequency divider is connected to the other input of the bistable flip-flop. The two said frequency dividers are constructed such that the pulse frequency of the pulse trains fed to the two inputs of the bistable flip-flop deviate only slightly from one another. The electronic switching device (9) is controlled by the pulses occurring at the output of the flip-flop, whose width depends on the phase relationship between the said pulse trains, and the unbalance system is influenced to oscillate either at the first or at the second frequency. <IMAGE>
CH157474A 1973-02-06 1974-02-05 Time-keeping unit with an electronically controlled drive system CH613356GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2305682A DE2305682C3 (en) 1973-02-06 1973-02-06 Time-keeping device, in particular a quartz wristwatch with an electronically controlled display system

Publications (2)

Publication Number Publication Date
CH613356B true CH613356B (en)
CH613356GA3 CH613356GA3 (en) 1979-09-28

Family

ID=5871059

Family Applications (1)

Application Number Title Priority Date Filing Date
CH157474A CH613356GA3 (en) 1973-02-06 1974-02-05 Time-keeping unit with an electronically controlled drive system

Country Status (4)

Country Link
JP (1) JPS6137584B2 (en)
CH (1) CH613356GA3 (en)
DE (1) DE2305682C3 (en)
FR (1) FR2216613B3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850325C3 (en) * 1978-11-20 1981-07-09 Braun Ag, 6000 Frankfurt Time-keeping device, especially a large quartz clock with an electronically controlled display system
JPS55501033A (en) * 1978-11-20 1980-11-27
DE2937838C2 (en) * 1979-09-19 1986-08-28 Braun Ag, 6000 Frankfurt Method and arrangement for regulating speed and phase position in synchronous motors
DE3230217A1 (en) * 1982-08-13 1984-02-23 Braun Ag, 6000 Frankfurt Integrated circuit for a clock or a clock radio with analog time display

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319944A (en) * 1976-08-09 1978-02-23 Mitsubishi Heavy Ind Ltd Holder for bent tubes

Also Published As

Publication number Publication date
DE2305682B2 (en) 1978-02-16
DE2305682A1 (en) 1974-08-29
JPS49113671A (en) 1974-10-30
JPS6137584B2 (en) 1986-08-25
CH613356GA3 (en) 1979-09-28
FR2216613B3 (en) 1976-11-26
FR2216613A1 (en) 1974-08-30
DE2305682C3 (en) 1978-10-05

Similar Documents

Publication Publication Date Title
GB1277714A (en) Multiple phase clock signal generator using frequency related and phase separated signals
US3515997A (en) Circuit serving for detecting the synchronism between two frequencies
GB1331150A (en) System for eliminating gyro on-off drift effects
CH613356B (en) TIME HOLDING DEVICE WITH AN ELECTRONICALLY CONTROLLED DRIVE SYSTEM.
FR2509065B1 (en) REFERENCE PULSE GENERATOR FOR AN ELECTRONIC WATCH
GB1214980A (en) Electronic watch
JPS5636234A (en) Frequency following type voltage control oscillating unit
KR880002873Y1 (en) Clock dividing circuit
SU411653A1 (en)
US3851255A (en) Pulse generating circuit
SU847497A1 (en) Controllable pulse renerator
KR930022701A (en) Controlled PWM Signal Generator of Pulse Width Modulation (PWM) Motor Control System
FR2335901A1 (en) Musical signal electronic visual display - uses two oscillators whose frequency can be modulated to drive counters
JPS5572887A (en) Pulse motor driver circuit for timepiece
ES344069A1 (en) Function generator
SU1451655A2 (en) Device for presetting speed ratio
SU414564A1 (en)
JPS5047656A (en)
GB1383529A (en) Crystal electronic timepiece
SU1584083A1 (en) Digital controllable delay line
SU484629A1 (en) Single Pulse Generator
GB1434604A (en) Timing pulse circuit arrangmeents for timepieces
SU1429135A1 (en) Device for shaping sine signals
JPS52150946A (en) Sequential logical circuit
JPS54101367A (en) Pulse motor driving circuit for watches