FR2177813B1 - - Google Patents
Info
- Publication number
- FR2177813B1 FR2177813B1 FR7309279A FR7309279A FR2177813B1 FR 2177813 B1 FR2177813 B1 FR 2177813B1 FR 7309279 A FR7309279 A FR 7309279A FR 7309279 A FR7309279 A FR 7309279A FR 2177813 B1 FR2177813 B1 FR 2177813B1
- 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
- G04C3/069—Driving circuits using a single coil for detection and driving purposes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH456972A CH574637B5 (US20030199744A1-20031023-C00003.png) | 1972-03-28 | 1972-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2177813A1 FR2177813A1 (US20030199744A1-20031023-C00003.png) | 1973-11-09 |
| FR2177813B1 true FR2177813B1 (US20030199744A1-20031023-C00003.png) | 1975-10-31 |
Family
ID=4278532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7309279A Expired FR2177813B1 (US20030199744A1-20031023-C00003.png) | 1972-03-28 | 1973-03-13 |
Country Status (7)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4106280A (en) * | 1975-03-27 | 1978-08-15 | Hansrichard Schulz | Method and apparatus for synchronizing a mechanical oscillating system to the accuracy of a quartz standard |
| JPS57188172U (US20030199744A1-20031023-C00003.png) * | 1981-05-25 | 1982-11-29 | ||
| JPS63217288A (ja) * | 1987-03-06 | 1988-09-09 | Seikosha Co Ltd | 電磁駆動回路 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1673776A1 (de) * | 1967-04-19 | 1971-02-25 | Siemens Ag | Schaltungsanordnung zur kontaktlosen Steuerung eines mechanischen Schwingers |
| DE2036330C3 (de) * | 1970-07-22 | 1974-05-02 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Verfahren und Schaltungsanordnung zur automatischen Amplitudenregelung von elektromechanischen Schwingern |
| DE2102025B1 (de) * | 1971-01-16 | 1972-07-13 | Deutsche Itt Industries Gmbh | Astabiler Miltivibrator mit zwei zueinander komplementären Transistoren |
-
1972
- 1972-03-28 CH CH456972D patent/CH456972A4/xx not_active IP Right Cessation
- 1972-03-28 CH CH456972A patent/CH574637B5/xx not_active IP Right Cessation
-
1973
- 1973-03-12 DE DE2312140A patent/DE2312140A1/de active Pending
- 1973-03-13 GB GB1205873A patent/GB1418749A/en not_active Expired
- 1973-03-13 FR FR7309279A patent/FR2177813B1/fr not_active Expired
- 1973-03-21 IT IT21923/73A patent/IT981520B/it active
- 1973-03-27 JP JP3496873A patent/JPS5319220B2/ja not_active Expired
- 1973-03-28 US US00345687A patent/US3844106A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS499278A (US20030199744A1-20031023-C00003.png) | 1974-01-26 |
| US3844106A (en) | 1974-10-29 |
| IT981520B (it) | 1974-10-10 |
| CH574637B5 (US20030199744A1-20031023-C00003.png) | 1976-04-15 |
| GB1418749A (en) | 1975-12-24 |
| FR2177813A1 (US20030199744A1-20031023-C00003.png) | 1973-11-09 |
| CH456972A4 (US20030199744A1-20031023-C00003.png) | 1975-11-14 |
| JPS5319220B2 (US20030199744A1-20031023-C00003.png) | 1978-06-20 |
| DE2312140A1 (de) | 1973-10-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |