FR1581181A - - Google Patents
Info
- Publication number
- FR1581181A FR1581181A FR1581181DA FR1581181A FR 1581181 A FR1581181 A FR 1581181A FR 1581181D A FR1581181D A FR 1581181DA FR 1581181 A FR1581181 A FR 1581181A
- 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
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—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 balance
- G04C3/06—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 balance using electromagnetic coupling between electric power source and balance
- G04C3/065—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 balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
- G04C3/067—Driving circuits with distinct detecting and driving coils
- G04C3/068—Driving circuits with distinct detecting and driving coils provided with automatic control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671673764 DE1673764A1 (de) | 1967-08-03 | 1967-08-03 | Elektronische Schaltung zum Antrieb eines direkt angetriebenen Schwingsystems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1581181A true FR1581181A (US20100223739A1-20100909-C00025.png) | 1969-09-12 |
Family
ID=5686569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1581181D Expired FR1581181A (US20100223739A1-20100909-C00025.png) | 1967-08-03 | 1968-08-02 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1581181A (US20100223739A1-20100909-C00025.png) |
| GB (1) | GB1177740A (US20100223739A1-20100909-C00025.png) |
-
1968
- 1968-07-30 GB GB3629068A patent/GB1177740A/en not_active Expired
- 1968-08-02 FR FR1581181D patent/FR1581181A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1177740A (en) | 1970-01-14 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |