CH661835GA3 - - Google Patents
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- Publication number
- CH661835GA3 CH661835GA3 CH392085A CH392085A CH661835GA3 CH 661835G A3 CH661835G A3 CH 661835GA3 CH 392085 A CH392085 A CH 392085A CH 392085 A CH392085 A CH 392085A CH 661835G A3 CH661835G A3 CH 661835GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- motor
- indicator member
- timepiece
- control circuit
- frequency divider
- Prior art date
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
- G04C3/146—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor incorporating two or more stepping motors or rotors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
1. An electronic timepiece with analog display comprising : - an oscillator (1; 1') - a frequency divider (2; 2') connected to said oscillator ; - a first indicator member (6; 6') for displaying the seconds and a second indicator member (7; 8') for displaying another time information ; - a first motor (5; 5') comprising a rotor (27) with a permanent magnet (28) carried by a shaft mechanically coupled to the first indicator member for driving this last one ; - a first control circuit (4; 4') connected to the frequency divider to control the first motor ; - a second motor (12; 12') which functions step-by-step in response to voltage drive pulses for driving the second indicator member ; - a second control circuit (11; 11') also connected to the frequency divider to produce said voltage drive pulses and apply to the second motor ; and - a correction device (14-20; 14'-20', 23) allowing the timepiece to be changed from a normal functioning mode to a correction mode and vice versa and at least the time information displayed by the second indicator member to be modified, when the timepiece is in the correction mode, characterized by the fact that the first motor (5; 5') comprises at least two coils (38, 39; 38', 39') and that the first control circuit (4; 4') is designed to apply continuously to these coils variable voltages (V1 , V2 ) which allow the rotor (27) of this first motor to be subjected to a rotating magnetic field in such a way that said first indicator member (6; 6') moves forward by making at least five jumps per second, so long as said timepiece is in the normal functioning mode.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH392085A CH661835GA3 (en) | 1985-09-11 | 1985-09-11 | |
EP86112165A EP0217164B1 (en) | 1985-09-11 | 1986-09-03 | Electronic timepiece with an analogous display having a seconds indicating organ |
DE8686112165T DE3664967D1 (en) | 1985-09-11 | 1986-09-03 | Electronic timepiece with an analogous display having a seconds indicating organ |
JP61212873A JPS62124491A (en) | 1985-09-11 | 1986-09-11 | Electronic time device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH392085A CH661835GA3 (en) | 1985-09-11 | 1985-09-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH661835GA3 true CH661835GA3 (en) | 1987-08-31 |
Family
ID=4266335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH392085A CH661835GA3 (en) | 1985-09-11 | 1985-09-11 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0217164B1 (en) |
JP (1) | JPS62124491A (en) |
CH (1) | CH661835GA3 (en) |
DE (1) | DE3664967D1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0187288U (en) * | 1987-12-02 | 1989-06-08 | ||
TW288222B (en) * | 1994-08-26 | 1996-10-11 | Ebauchesfabrik Eta Ag | |
EP0698957B1 (en) * | 1994-08-26 | 1998-01-07 | Eta SA Fabriques d'Ebauches | Electromechanical transducer having two rotors |
FR2724271B1 (en) * | 1994-09-02 | 1996-10-25 | Ebauchesfabrik Eta Ag | ELECTROMECHANICAL TRANSDUCER HAVING TWO ROTORS |
JPH08149034A (en) * | 1994-11-24 | 1996-06-07 | Saitama Nippon Denki Kk | Radio unit |
FR2743216B1 (en) * | 1995-12-28 | 1998-02-06 | Ebauchesfabrik Eta Ag | MULTIROTOR ELECTROMECHANICAL TRANSDUCER |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2209251A1 (en) * | 1972-12-04 | 1974-06-28 | Citizen Watch Co Ltd | |
GB2087601A (en) * | 1980-07-18 | 1982-05-26 | Citizen Watch Co Ltd | Analog display electronic timepiece with multi-mode display capability |
GB2110846A (en) * | 1981-10-27 | 1983-06-22 | Citizen Watch Co Ltd | Electronic timepiece |
EP0087387A1 (en) * | 1982-02-15 | 1983-08-31 | Eta SA Fabriques d'Ebauches | Method and means for controlling a bidirectional step-motor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5117057B1 (en) * | 1970-09-12 | 1976-05-29 | ||
JPS5077812A (en) * | 1973-11-15 | 1975-06-25 | ||
CH643427B (en) * | 1981-03-05 | Ebauchesfabrik Eta Ag | ELECTRONIC WATCH. | |
JPS5917188A (en) * | 1982-07-20 | 1984-01-28 | Citizen Watch Co Ltd | Electronic timepiece |
-
1985
- 1985-09-11 CH CH392085A patent/CH661835GA3/fr unknown
-
1986
- 1986-09-03 DE DE8686112165T patent/DE3664967D1/en not_active Expired
- 1986-09-03 EP EP86112165A patent/EP0217164B1/en not_active Expired
- 1986-09-11 JP JP61212873A patent/JPS62124491A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2209251A1 (en) * | 1972-12-04 | 1974-06-28 | Citizen Watch Co Ltd | |
GB2087601A (en) * | 1980-07-18 | 1982-05-26 | Citizen Watch Co Ltd | Analog display electronic timepiece with multi-mode display capability |
GB2110846A (en) * | 1981-10-27 | 1983-06-22 | Citizen Watch Co Ltd | Electronic timepiece |
EP0087387A1 (en) * | 1982-02-15 | 1983-08-31 | Eta SA Fabriques d'Ebauches | Method and means for controlling a bidirectional step-motor |
Non-Patent Citations (3)
Title |
---|
BULLETIN ANNUEL DE LA SOCIETE SUISSE DE CHRONOMETRIE, vol. 11, no. 1, 1982, pages 147-151, Neuchâtel, CH: R. GRANDJEAN: "Moteurs biphasé pour montre à quartz" * |
ELEKTRONIK, vol. 29, no. 26, décembre 1980, pages 43-46, Munich, DE; H. GRUGG et al.: "Schrittmotoren optimal angesteuert" * |
ELEKTRONIK, vol. 33, no. 1, janvier 1983, pages 37-39, Munich, DE; T. WITTCHEN: "Minischritt-Steuerung f}r 2-Phasenschrittmotoren mit geschalteten Stromreglern" * |
Also Published As
Publication number | Publication date |
---|---|
EP0217164A1 (en) | 1987-04-08 |
JPS62124491A (en) | 1987-06-05 |
EP0217164B1 (en) | 1989-08-09 |
DE3664967D1 (en) | 1989-09-14 |
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