GB1509458A - Electronic circuit in a quartz crystal watch - Google Patents
Electronic circuit in a quartz crystal watchInfo
- Publication number
- GB1509458A GB1509458A GB3220975A GB3220975A GB1509458A GB 1509458 A GB1509458 A GB 1509458A GB 3220975 A GB3220975 A GB 3220975A GB 3220975 A GB3220975 A GB 3220975A GB 1509458 A GB1509458 A GB 1509458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- stage
- divider
- motor
- stages
- Prior art date
- 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
- 239000013078 crystal Substances 0.000 title abstract 2
- 239000010453 quartz Substances 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title 1
- 238000005259 measurement Methods 0.000 abstract 4
- 238000004804 winding Methods 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
- G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
-
- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
- G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
- G04D7/1235—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork)
- G04D7/125—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork) for measuring frequency
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G3/00—Producing timing pulses
- G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G5/00—Setting, i.e. correcting or changing, the time-indication
- G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1181874A CH593513B5 (enrdf_load_stackoverflow) | 1974-08-30 | 1974-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1509458A true GB1509458A (en) | 1978-05-04 |
Family
ID=4377166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3220975A Expired GB1509458A (en) | 1974-08-30 | 1975-08-01 | Electronic circuit in a quartz crystal watch |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5150760A (enrdf_load_stackoverflow) |
| CH (2) | CH593513B5 (enrdf_load_stackoverflow) |
| FR (1) | FR2283478A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1509458A (enrdf_load_stackoverflow) |
| HK (1) | HK27179A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH664868GA3 (enrdf_load_stackoverflow) * | 1986-07-10 | 1988-04-15 | ||
| EP1890204B1 (fr) * | 2006-08-16 | 2011-11-02 | ETA SA Manufacture Horlogère Suisse | Montre électronique comprenant un résonateur |
| EP2169479B1 (fr) * | 2008-09-29 | 2011-11-30 | ETA SA Manufacture Horlogère Suisse | Dispositif base de temps pour une montre |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5127151B1 (enrdf_load_stackoverflow) * | 1970-12-26 | 1976-08-11 |
-
1974
- 1974-08-30 CH CH1181874A patent/CH593513B5/xx not_active IP Right Cessation
- 1974-08-30 CH CH1181874D patent/CH1181874A4/xx unknown
-
1975
- 1975-08-01 GB GB3220975A patent/GB1509458A/en not_active Expired
- 1975-08-19 FR FR7525650A patent/FR2283478A1/fr active Granted
- 1975-08-28 JP JP10448875A patent/JPS5150760A/ja active Granted
-
1979
- 1979-04-26 HK HK27179A patent/HK27179A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2283478A1 (fr) | 1976-03-26 |
| JPS6118152B2 (enrdf_load_stackoverflow) | 1986-05-10 |
| FR2283478B1 (enrdf_load_stackoverflow) | 1978-04-07 |
| DE2534035B2 (de) | 1976-11-11 |
| CH1181874A4 (enrdf_load_stackoverflow) | 1977-03-31 |
| HK27179A (en) | 1979-05-04 |
| CH593513B5 (enrdf_load_stackoverflow) | 1977-12-15 |
| JPS5150760A (ja) | 1976-05-04 |
| DE2534035A1 (de) | 1976-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19950731 |