GB1350721A - Electronic circuit for quartz crystal watch - Google Patents
Electronic circuit for quartz crystal watchInfo
- Publication number
- GB1350721A GB1350721A GB1263772A GB1263772A GB1350721A GB 1350721 A GB1350721 A GB 1350721A GB 1263772 A GB1263772 A GB 1263772A GB 1263772 A GB1263772 A GB 1263772A GB 1350721 A GB1350721 A GB 1350721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- watch
- circuit
- coil
- crown
- transducer
- 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 3
- 239000010453 quartz Substances 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title 1
- 239000003990 capacitor Substances 0.000 abstract 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C13/00—Driving mechanisms for clocks by primary clocks
- G04C13/08—Secondary clocks actuated intermittently
- G04C13/10—Secondary clocks actuated intermittently by electromechanical step advancing mechanisms
-
- 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
-
- 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
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
- G04F5/06—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses using piezoelectric resonators
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46015669A JPS5217745B1 (enrdf_load_stackoverflow) | 1971-03-20 | 1971-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1350721A true GB1350721A (en) | 1974-04-24 |
Family
ID=11895135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1263772A Expired GB1350721A (en) | 1971-03-20 | 1972-03-17 | Electronic circuit for quartz crystal watch |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3810355A (enrdf_load_stackoverflow) |
| JP (1) | JPS5217745B1 (enrdf_load_stackoverflow) |
| DE (1) | DE2213132A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2130451B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1350721A (enrdf_load_stackoverflow) |
| HK (1) | HK14876A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4994255A (enrdf_load_stackoverflow) * | 1973-01-11 | 1974-09-06 | ||
| DE2359142C2 (de) * | 1973-11-28 | 1982-04-22 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Elektrische Uhr mit Schrittmotor |
| JPS51101478A (enrdf_load_stackoverflow) * | 1975-03-04 | 1976-09-07 | Suwa Seikosha Kk | |
| US4150536A (en) * | 1976-01-28 | 1979-04-24 | Citizen Watch Company Limited | Electronic timepiece |
| US5596554A (en) * | 1993-06-04 | 1997-01-21 | Hagadorn; Hubert W. | Set operation in a timepiece having an electrooptical display |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3212252A (en) * | 1963-06-04 | 1965-10-19 | Citizen Watch Co Ltd | Vibratory motor and controlled circuit for a small timepiece |
| US3363410A (en) * | 1966-01-25 | 1968-01-16 | Suwa Seikosha Kk | Apparatus for adjusting electric timepieces |
| DE1591218A1 (de) * | 1967-03-09 | 1970-12-17 | Junghans Gmbh Geb | Quarzgesteuerter Transistor-Oszillator |
| US3540207A (en) * | 1968-09-20 | 1970-11-17 | Timex Corp | Electronic watch counting circuit |
| US3576099A (en) * | 1969-04-22 | 1971-04-27 | Hamilton Watch Co | Solid state timepiece having electro-optical time display |
| CH1728169A4 (enrdf_load_stackoverflow) * | 1969-11-20 | 1977-08-15 | ||
| US3616638A (en) * | 1970-03-19 | 1971-11-02 | Bulova Watch Co Inc | Crystal-controlled mechanical resonator |
| US3608301A (en) * | 1970-04-30 | 1971-09-28 | Quasar Microsystems Inc | Digital clock having automatic indication of power failure |
| US3664118A (en) * | 1970-09-09 | 1972-05-23 | Hamilton Watch Co | Electronically controlled timepiece using low power mos transistor circuitry |
-
1971
- 1971-03-20 JP JP46015669A patent/JPS5217745B1/ja active Pending
-
1972
- 1972-03-17 DE DE19722213132 patent/DE2213132A1/de active Pending
- 1972-03-17 US US00235640A patent/US3810355A/en not_active Expired - Lifetime
- 1972-03-17 GB GB1263772A patent/GB1350721A/en not_active Expired
- 1972-03-20 FR FR7209616A patent/FR2130451B1/fr not_active Expired
-
1976
- 1976-03-18 HK HK148/76*UA patent/HK14876A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3810355A (en) | 1974-05-14 |
| HK14876A (en) | 1976-03-26 |
| FR2130451A1 (enrdf_load_stackoverflow) | 1972-11-03 |
| FR2130451B1 (enrdf_load_stackoverflow) | 1974-12-13 |
| DE2213132A1 (de) | 1972-10-12 |
| JPS5217745B1 (enrdf_load_stackoverflow) | 1977-05-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |