FR2058215B1 - - Google Patents
Info
- Publication number
- FR2058215B1 FR2058215B1 FR707027491A FR7027491A FR2058215B1 FR 2058215 B1 FR2058215 B1 FR 2058215B1 FR 707027491 A FR707027491 A FR 707027491A FR 7027491 A FR7027491 A FR 7027491A FR 2058215 B1 FR2058215 B1 FR 2058215B1
- Authority
- FR
- France
- 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
- 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
-
- 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)
- Electromechanical Clocks (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1222869A CH532280A (fr) | 1969-08-12 | 1969-08-12 | Montre électronique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2058215A1 FR2058215A1 (cs) | 1971-05-28 |
FR2058215B1 true FR2058215B1 (cs) | 1973-08-10 |
Family
ID=4381067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR707027491A Expired FR2058215B1 (cs) | 1969-08-12 | 1970-07-24 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3766454A (cs) |
CH (2) | CH532280A (cs) |
DE (1) | DE2038185A1 (cs) |
FR (1) | FR2058215B1 (cs) |
GB (1) | GB1303455A (cs) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2309291A1 (de) * | 1973-02-24 | 1974-08-29 | Itt Ind Gmbh Deutsche | Verfahren zum synchronisieren mechanischer schwinger von gebrauchsuhren |
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 (fr) * | 1967-09-08 | 1968-08-23 | Smiths Industries Ltd | Instruments chronométriques comportant des circuits produisant des oscillations électriques |
JPS4943989B1 (cs) * | 1968-07-19 | 1974-11-26 |
-
1969
- 1969-08-12 CH CH1222869A patent/CH532280A/fr unknown
- 1969-08-12 CH CH1222869D patent/CH1222869A4/xx 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/de 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 |
CH1222869A4 (cs) | 1972-09-15 |
CH532280A (fr) | 1972-09-15 |
FR2058215A1 (cs) | 1971-05-28 |
GB1303455A (cs) | 1973-01-17 |
DE2038185A1 (de) | 1971-05-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |