CH1222869A4 - - Google Patents
Info
- Publication number
- CH1222869A4 CH1222869A4 CH1222869DD CH1222869A4 CH 1222869 A4 CH1222869 A4 CH 1222869A4 CH 1222869D D CH1222869D D CH 1222869DD CH 1222869 A4 CH1222869 A4 CH 1222869A4
- Authority
- CH
- Switzerland
Links
Classifications
-
- 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
- G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/108—Driving circuits
-
- 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
- G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
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- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Clocks (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1222869A CH532280A (en) | 1969-08-12 | 1969-08-12 | Electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH1222869A4 true CH1222869A4 (en) | 1972-09-15 |
Family
ID=4381067
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1222869D CH1222869A4 (en) | 1969-08-12 | 1969-08-12 | |
| CH1222869A CH532280A (en) | 1969-08-12 | 1969-08-12 | Electronic watch |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1222869A CH532280A (en) | 1969-08-12 | 1969-08-12 | Electronic watch |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3766454A (en) |
| CH (2) | CH1222869A4 (en) |
| DE (1) | DE2038185A1 (en) |
| FR (1) | FR2058215B1 (en) |
| GB (1) | GB1303455A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2309291A1 (en) * | 1973-02-24 | 1974-08-29 | Itt Ind Gmbh Deutsche | PROCESS FOR SYNCHRONIZING MECHANICAL VIBRATORS OF USED WATCHES |
| US3892066A (en) * | 1974-02-27 | 1975-07-01 | Microna Inc | Synchronized watch movement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2396224A (en) * | 1943-06-16 | 1946-03-12 | Rca Corp | Oscillation generator |
| US3021492A (en) * | 1961-04-11 | 1962-02-13 | Avco Corp | Automatic phase control system |
| US3249876A (en) * | 1963-02-07 | 1966-05-03 | Gen Dynamics Corp | Precision tracking of electrically tuned circuits |
| US3282042A (en) * | 1964-09-10 | 1966-11-01 | Bulova Watch Co Inc | Crystal controlled chronometer |
| GB1205753A (en) * | 1966-09-09 | 1970-09-16 | Smiths Industries Ltd | Horological instruments incorporating electrical oscillation generators |
| FR1537298A (en) * | 1967-09-08 | 1968-08-23 | Smiths Industries Ltd | Chronometric instruments incorporating circuits producing electrical oscillations |
| JPS4943989B1 (en) * | 1968-07-19 | 1974-11-26 |
-
1969
- 1969-08-12 CH CH1222869D patent/CH1222869A4/xx unknown
- 1969-08-12 CH CH1222869A patent/CH532280A/en unknown
-
1970
- 1970-07-21 GB GB3534270A patent/GB1303455A/en not_active Expired
- 1970-07-24 FR FR707027491A patent/FR2058215B1/fr not_active Expired
- 1970-07-31 DE DE19702038185 patent/DE2038185A1/en active Pending
-
1972
- 1972-03-14 US US00234588A patent/US3766454A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3766454A (en) | 1973-10-16 |
| GB1303455A (en) | 1973-01-17 |
| DE2038185A1 (en) | 1971-05-19 |
| FR2058215A1 (en) | 1971-05-28 |
| CH532280A (en) | 1972-09-15 |
| FR2058215B1 (en) | 1973-08-10 |