FR2394840A1 - ELECTRONIC WATCH WITH MECHANICAL DISPLAY - Google Patents
ELECTRONIC WATCH WITH MECHANICAL DISPLAYInfo
- Publication number
- FR2394840A1 FR2394840A1 FR7818476A FR7818476A FR2394840A1 FR 2394840 A1 FR2394840 A1 FR 2394840A1 FR 7818476 A FR7818476 A FR 7818476A FR 7818476 A FR7818476 A FR 7818476A FR 2394840 A1 FR2394840 A1 FR 2394840A1
- Authority
- FR
- France
- Prior art keywords
- display
- motors
- corrected
- electronic watch
- stepping motor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C17/00—Indicating the time optically by electric means
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C9/00—Electrically-actuated devices for setting the time-indicating means
Abstract
An electronic watch with mechanical display is more easily altered or corrected by sharing the display driving tests among a plurality of duel rotation sense motors. Such an arrangement enables practicable obtaining of a perpetual calendar in such a watch. A first stepping motor drives the seconds and minutes displays Figure 1, and the second stepping motor drives the hours and calendar display. Drive signals for the motors are derived by respective frequency dividers from a crystal controlled oscillator. When setting, a selector 8 is operated to select the unit to be corrected and in response to operation of a switch 9 or 10 the appropriate motor is driven forward or backward at a slow or fast rate. Memory circuits enable automatic adjustment for the number of days in the current month.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH738277A CH613837B (en) | 1977-06-14 | 1977-06-14 | ELECTRONIC WATCH WITH MECHANICAL DISPLAY. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2394840A1 true FR2394840A1 (en) | 1979-01-12 |
FR2394840B1 FR2394840B1 (en) | 1981-04-30 |
Family
ID=4324267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7818476A Granted FR2394840A1 (en) | 1977-06-14 | 1978-06-09 | ELECTRONIC WATCH WITH MECHANICAL DISPLAY |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5439666A (en) |
CH (1) | CH613837B (en) |
DE (1) | DE2824990A1 (en) |
FR (1) | FR2394840A1 (en) |
GB (1) | GB2001187B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2465358A1 (en) * | 1979-09-07 | 1981-03-20 | Ebauches Sa | DEVICE FOR CONTROLLING TWO STEP-BY-STEP MOTORS IN AN ELECTRONIC WATCH WORKPIECE |
EP0048217A1 (en) * | 1980-09-12 | 1982-03-24 | Compagnie des Montres Longines, Francillon S.A. | Electronic timepiece |
EP0059164A1 (en) * | 1981-02-16 | 1982-09-01 | Compagnie des Montres Longines, Francillon S.A. | Multifunctional watch |
EP0070052A1 (en) * | 1981-07-09 | 1983-01-19 | Umberto Maglioli | Electronic timepiece |
EP0194136A2 (en) * | 1985-03-05 | 1986-09-10 | Seiko Instruments Inc. | Electronic timepiece with a solar cell |
EP0231451A1 (en) * | 1985-12-18 | 1987-08-12 | Eta SA Fabriques d'Ebauches | Electronic clock with two motors and provided with a perpetual calender |
EP0247418A1 (en) * | 1986-05-26 | 1987-12-02 | Eta SA Fabriques d'Ebauches | Perpetual calender clock with two motors |
CH665077GA3 (en) * | 1986-10-15 | 1988-04-29 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6013153B2 (en) * | 1976-12-03 | 1985-04-05 | シチズン時計株式会社 | Electronic clock with calendar |
JPS6045834B2 (en) * | 1978-03-30 | 1985-10-12 | セイコーエプソン株式会社 | Feeding mechanism for date display components for watches |
JPS57110981A (en) * | 1980-12-27 | 1982-07-10 | Copal Co Ltd | Time setting device for analog display watch |
CH647382GA3 (en) * | 1982-04-21 | 1985-01-31 | ||
JPS60109087U (en) * | 1983-12-27 | 1985-07-24 | シチズン時計株式会社 | Gear train arrangement structure of a crystal clock |
DE3513961A1 (en) * | 1985-04-18 | 1986-10-23 | Forschungsgesellschaft für Feingeräte-, Mikro- und Uhrentechnik e.V., 7000 Stuttgart | Device for detecting the state of the motion in an electronic clock, in particular a radio-controlled clock |
JPS6222583U (en) * | 1985-07-24 | 1987-02-10 | ||
DE3890910T1 (en) * | 1987-11-11 | 1989-12-21 | Rolex Montres | METHOD FOR PROGRAMMING THE PERMANENT CALENDAR OF A WATCH AND WATCH FOR THE APPLICATION OF THIS METHOD |
CH672222B5 (en) * | 1987-11-11 | 1990-05-15 | Rolex Montres |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1395203A (en) * | 1963-05-01 | 1965-04-09 | Indicator device | |
FR2138996A1 (en) * | 1971-05-24 | 1973-01-05 | Dill Gottlieb Hans |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS559672B2 (en) * | 1972-10-07 | 1980-03-11 | ||
FR2203108B3 (en) * | 1972-10-13 | 1976-09-03 | Grand Cap Cie Sa | |
JPS5627833B2 (en) * | 1973-11-13 | 1981-06-27 |
-
1977
- 1977-06-14 CH CH738277A patent/CH613837B/en unknown
-
1978
- 1978-06-07 DE DE19782824990 patent/DE2824990A1/en active Granted
- 1978-06-09 FR FR7818476A patent/FR2394840A1/en active Granted
- 1978-06-13 GB GB7826762A patent/GB2001187B/en not_active Expired
- 1978-06-14 JP JP7101578A patent/JPS5439666A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1395203A (en) * | 1963-05-01 | 1965-04-09 | Indicator device | |
FR2138996A1 (en) * | 1971-05-24 | 1973-01-05 | Dill Gottlieb Hans |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2465358A1 (en) * | 1979-09-07 | 1981-03-20 | Ebauches Sa | DEVICE FOR CONTROLLING TWO STEP-BY-STEP MOTORS IN AN ELECTRONIC WATCH WORKPIECE |
EP0048217A1 (en) * | 1980-09-12 | 1982-03-24 | Compagnie des Montres Longines, Francillon S.A. | Electronic timepiece |
EP0059164A1 (en) * | 1981-02-16 | 1982-09-01 | Compagnie des Montres Longines, Francillon S.A. | Multifunctional watch |
EP0070052A1 (en) * | 1981-07-09 | 1983-01-19 | Umberto Maglioli | Electronic timepiece |
EP0194136A2 (en) * | 1985-03-05 | 1986-09-10 | Seiko Instruments Inc. | Electronic timepiece with a solar cell |
EP0194136A3 (en) * | 1985-03-05 | 1986-12-30 | Seiko Instruments & Electronics Ltd. | Electronic timepiece with a solar cell |
EP0231451A1 (en) * | 1985-12-18 | 1987-08-12 | Eta SA Fabriques d'Ebauches | Electronic clock with two motors and provided with a perpetual calender |
CH661833GA3 (en) * | 1985-12-18 | 1987-08-31 | ||
EP0247418A1 (en) * | 1986-05-26 | 1987-12-02 | Eta SA Fabriques d'Ebauches | Perpetual calender clock with two motors |
CH663512GA3 (en) * | 1986-05-26 | 1987-12-31 | ||
US4733384A (en) * | 1986-05-26 | 1988-03-22 | Eta S.A. Fabriques D'ebauches | Perpetual calendar watch having two motors |
CH665077GA3 (en) * | 1986-10-15 | 1988-04-29 | ||
EP0267440A1 (en) * | 1986-10-15 | 1988-05-18 | Eta SA Fabriques d'Ebauches | Analogous clock with two motors having a perpetual day counter |
US4775963A (en) * | 1986-10-15 | 1988-10-04 | ETA SA Fabriques d'Ebauches of Granges | Analog watch having two motors and comprising means for perpetually indicating the day of the month |
Also Published As
Publication number | Publication date |
---|---|
CH613837GA3 (en) | 1979-10-31 |
DE2824990C2 (en) | 1987-09-10 |
GB2001187A (en) | 1979-01-24 |
JPS5439666A (en) | 1979-03-27 |
DE2824990A1 (en) | 1979-02-01 |
FR2394840B1 (en) | 1981-04-30 |
GB2001187B (en) | 1982-01-06 |
CH613837B (en) |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse | ||
ST | Notification of lapse |