FR2442467B1 - - Google Patents
Info
- Publication number
- FR2442467B1 FR2442467B1 FR7927128A FR7927128A FR2442467B1 FR 2442467 B1 FR2442467 B1 FR 2442467B1 FR 7927128 A FR7927128 A FR 7927128A FR 7927128 A FR7927128 A FR 7927128A FR 2442467 B1 FR2442467 B1 FR 2442467B1
- Authority
- FR
- France
- Prior art keywords
- rate
- watch
- measuring
- stepping motor
- division factor
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/002—Electrical measuring and testing apparatus
- G04D7/003—Electrical measuring and testing apparatus for electric or electronic clocks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electrophonic Musical Instruments (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1206378A CH624540B (fr) | 1978-11-24 | 1978-11-24 | Dispositif de mesure de la marche d'une piece d'horlogerie electronique. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2442467A1 FR2442467A1 (fr) | 1980-06-20 |
FR2442467B1 true FR2442467B1 (fr) | 1984-05-04 |
Family
ID=4379511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7927128A Granted FR2442467A1 (fr) | 1978-11-24 | 1979-11-02 | Piece d'horlogerie electronique a affichage analogique comportant un diviseur a taux de division ajustable |
Country Status (6)
Country | Link |
---|---|
US (1) | US4292836A (fr) |
JP (1) | JPS5582088A (fr) |
CH (1) | CH624540B (fr) |
DE (1) | DE2943301C2 (fr) |
FR (1) | FR2442467A1 (fr) |
GB (1) | GB2036386B (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4400093A (en) * | 1981-07-06 | 1983-08-23 | Omega Louis Brandt & Frere S.A. | Method for inspecting the running of a timepiece and timepiece adapted for such method |
GB2253286A (en) * | 1991-02-27 | 1992-09-02 | Tina Mary Douglas | Testing apparatus for timing devices |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1352082A (en) * | 1971-02-10 | 1974-05-15 | Suwa Seikosha Kk | Methods and apparatus for measuring the accuracy of electric timepieces |
GB1488914A (en) * | 1973-12-19 | 1977-10-19 | Citizen Watch Co Ltd | Electronic timepiece |
US3892124A (en) * | 1974-06-14 | 1975-07-01 | Time Computer | Wristwatch analyzer |
JPS6024434B2 (ja) * | 1976-07-07 | 1985-06-12 | セイコーエプソン株式会社 | 電子時計 |
JPS53140071A (en) * | 1977-05-13 | 1978-12-06 | Seiko Epson Corp | Analog type electronic watch |
US4142360A (en) * | 1977-07-07 | 1979-03-06 | Kabushiki Kaisha Suwa Seikosha | Electronic timepiece |
-
1978
- 1978-11-24 CH CH1206378A patent/CH624540B/fr unknown
-
1979
- 1979-10-19 GB GB7936415A patent/GB2036386B/en not_active Expired
- 1979-10-26 DE DE2943301A patent/DE2943301C2/de not_active Expired
- 1979-11-02 FR FR7927128A patent/FR2442467A1/fr active Granted
- 1979-11-22 JP JP15083379A patent/JPS5582088A/ja active Granted
- 1979-11-26 US US06/097,531 patent/US4292836A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS6154190B2 (fr) | 1986-11-21 |
FR2442467A1 (fr) | 1980-06-20 |
JPS5582088A (en) | 1980-06-20 |
GB2036386A (en) | 1980-06-25 |
US4292836A (en) | 1981-10-06 |
CH624540B (fr) | |
DE2943301C2 (de) | 1982-05-19 |
GB2036386B (en) | 1983-01-19 |
DE2943301A1 (de) | 1980-05-29 |
CH624540GA3 (fr) | 1981-08-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH619101GA3 (en) | Clock emitting hourly signals | |
CH617314GA3 (fr) | ||
IT7824732A0 (it) | Dispositivo accordatore automatico utile in un sintetizzatore di uno strumento musicale elettronico. | |
JPS51117676A (en) | Circuit device for estimating signal especially output signal from optical measuring instrument | |
CH616300GA3 (en) | Timepiece, especially wristwatch, with digital display provided with an alarm device | |
FR2442467B1 (fr) | ||
CH626499B (de) | Elektronisches zeitmessgeraet mit einer eingangsklemme zur aufnahme externer zeitdaten und zeitdatenzufuhrvorrichtung. | |
JPS5255361A (en) | Variable frequency oscillator | |
ZA767364B (en) | Process and circuitry for measuring the time-keeping accuracy of an electronic clock | |
CH624541B (de) | Elektronisches zeitmessgeraet. | |
GB2011130A (en) | Electronic timepiece | |
CH642514GA3 (fr) | ||
JPS5346015A (en) | Glide effect device for electronic musical instrument | |
JPS5719689A (en) | Electronic clock | |
JPS5236019A (en) | Sound source device of electronic musical instrument | |
JPS53104276A (en) | Electronic watch | |
JPS51120756A (en) | Clock equipped with sound generater | |
JPS5326166A (en) | Measuring apparatus for clock time accuracy | |
JPS5332011A (en) | Sound source apparatus for electronic musical instrument | |
JPS5350873A (en) | Electronic watch | |
JPS5333041A (en) | Frequency step-multiplication circuit | |
FR2403562A1 (fr) | Appareil de mesure de la deviation relative d'une frequence | |
JPS56163424A (en) | Device for measuring variation in rotation | |
JPS5360664A (en) | Electronic clock | |
JPS52147949A (en) | Oscillator unit containing division function |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |