CH613356GA3 - Time-keeping unit with an electronically controlled drive system - Google Patents
Time-keeping unit with an electronically controlled drive system Download PDFInfo
- Publication number
- CH613356GA3 CH613356GA3 CH157474A CH157474A CH613356GA3 CH 613356G A3 CH613356G A3 CH 613356GA3 CH 157474 A CH157474 A CH 157474A CH 157474 A CH157474 A CH 157474A CH 613356G A3 CH613356G A3 CH 613356GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- frequency
- flop
- pulse
- frequency divider
- output
- Prior art date
Links
- 239000010453 quartz Substances 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
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
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
-
- 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
- G04C3/04—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Automatic Disk Changers (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2305682A DE2305682C3 (de) | 1973-02-06 | 1973-02-06 | Zeithaltendes Gerät, insbesondere Quarzarmbanduhr mit elektronisch geregeltem Anzeigesystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CH613356B CH613356B (de) | |
| CH613356GA3 true CH613356GA3 (en) | 1979-09-28 |
Family
ID=5871059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH157474A CH613356GA3 (en) | 1973-02-06 | 1974-02-05 | Time-keeping unit with an electronically controlled drive system |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6137584B2 (en]) |
| CH (1) | CH613356GA3 (en]) |
| DE (1) | DE2305682C3 (en]) |
| FR (1) | FR2216613B3 (en]) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2850325C3 (de) * | 1978-11-20 | 1981-07-09 | Braun Ag, 6000 Frankfurt | Zeithaltendes Gerät, insbesondere Quarzgroßuhr mit elektronisch geregeltem Anzeigesystem |
| JPS55501033A (en]) * | 1978-11-20 | 1980-11-27 | ||
| DE2937838C2 (de) * | 1979-09-19 | 1986-08-28 | Braun Ag, 6000 Frankfurt | Verfahren und Anordnung zur Regelung von Drehzahl und Phasenlage bei Synchronmotoren |
| DE3230217A1 (de) * | 1982-08-13 | 1984-02-23 | Braun Ag, 6000 Frankfurt | Integrierte schaltung fuer eine uhr oder ein uhrenradio mit analoger zeitanzeige |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5319944A (en) * | 1976-08-09 | 1978-02-23 | Mitsubishi Heavy Ind Ltd | Holder for bent tubes |
-
1973
- 1973-02-06 DE DE2305682A patent/DE2305682C3/de not_active Expired
-
1974
- 1974-02-05 FR FR7403844A patent/FR2216613B3/fr not_active Expired
- 1974-02-05 CH CH157474A patent/CH613356GA3/xx not_active IP Right Cessation
- 1974-02-05 JP JP49014838A patent/JPS6137584B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2305682B2 (de) | 1978-02-16 |
| JPS49113671A (en]) | 1974-10-30 |
| FR2216613B3 (en]) | 1976-11-26 |
| FR2216613A1 (en]) | 1974-08-30 |
| CH613356B (de) | |
| DE2305682C3 (de) | 1978-10-05 |
| JPS6137584B2 (en]) | 1986-08-25 |
| DE2305682A1 (de) | 1974-08-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |