JPS4943989B1 - - Google Patents
Info
- Publication number
- JPS4943989B1 JPS4943989B1 JP43050764A JP5076468A JPS4943989B1 JP S4943989 B1 JPS4943989 B1 JP S4943989B1 JP 43050764 A JP43050764 A JP 43050764A JP 5076468 A JP5076468 A JP 5076468A JP S4943989 B1 JPS4943989 B1 JP S4943989B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Electric Clocks (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP43050764A JPS4943989B1 (en) | 1968-07-19 | 1968-07-19 | |
| US842278A US3648453A (en) | 1968-07-19 | 1969-07-16 | Electric timepiece |
| CH1103669A CH528770A (en) | 1968-07-19 | 1969-07-18 | Electric timepiece |
| CH1103669D CH1103669A4 (en) | 1968-07-19 | 1969-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP43050764A JPS4943989B1 (en) | 1968-07-19 | 1968-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4943989B1 true JPS4943989B1 (en) | 1974-11-26 |
Family
ID=12867885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP43050764A Pending JPS4943989B1 (en) | 1968-07-19 | 1968-07-19 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3648453A (en) |
| JP (1) | JPS4943989B1 (en) |
| CH (2) | CH1103669A4 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH532280A (en) * | 1969-08-12 | 1972-09-15 | Longines Montres Comp D | Electronic watch |
| CH949271A4 (en) * | 1971-06-29 | 1974-10-15 | ||
| JPS5319944B2 (en) * | 1971-09-25 | 1978-06-23 | ||
| FR2202318B1 (en) * | 1972-10-11 | 1976-10-29 | Hatot Leon Ets | |
| CH1691872A4 (en) * | 1972-11-21 | 1977-05-31 | ||
| CH594201B5 (en) * | 1972-12-13 | 1977-12-30 | Ebauches Sa | |
| JPS49119679A (en) * | 1973-03-16 | 1974-11-15 | ||
| CH581346B5 (en) * | 1973-07-19 | 1976-10-29 | Ebauches Sa | |
| US4010602A (en) * | 1974-02-25 | 1977-03-08 | Timex Corporation | High frequency reed time governor for a timepiece |
| US3892066A (en) * | 1974-02-27 | 1975-07-01 | Microna Inc | Synchronized watch movement |
| EP3130966B1 (en) * | 2015-08-11 | 2018-08-01 | ETA SA Manufacture Horlogère Suisse | Mechanical clockwork provided with a motion feedback system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3451210A (en) * | 1966-07-01 | 1969-06-24 | Benrus Corp | System for maintaining oscillations in an electric timing mechanism having an oscillatory element |
| GB1205753A (en) * | 1966-09-09 | 1970-09-16 | Smiths Industries Ltd | Horological instruments incorporating electrical oscillation generators |
-
1968
- 1968-07-19 JP JP43050764A patent/JPS4943989B1/ja active Pending
-
1969
- 1969-07-16 US US842278A patent/US3648453A/en not_active Expired - Lifetime
- 1969-07-18 CH CH1103669D patent/CH1103669A4/xx unknown
- 1969-07-18 CH CH1103669A patent/CH528770A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH1103669A4 (en) | 1972-06-15 |
| US3648453A (en) | 1972-03-14 |
| CH528770A (en) | 1972-06-15 |