GB1344769A - Synchronized quartz crystal watch - Google Patents
Synchronized quartz crystal watchInfo
- Publication number
- GB1344769A GB1344769A GB2196272A GB2196272A GB1344769A GB 1344769 A GB1344769 A GB 1344769A GB 2196272 A GB2196272 A GB 2196272A GB 2196272 A GB2196272 A GB 2196272A GB 1344769 A GB1344769 A GB 1344769A
- Authority
- GB
- United Kingdom
- Prior art keywords
- balance wheel
- solenoid
- watch
- counter
- synchronized
- 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
- 230000001360 synchronised effect Effects 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
- 230000010354 integration Effects 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Abstract
1344769 Synchronizing electric watches TIMEX CORP 10 May 1972 [18 May 1971] 21962/72 Heading G3T A periodically and automatically corrected watch includes a high frequency crystal oscillator 11 and a low frequency oscillator, e.g. a balance wheel 10, which is coupled to time display means conventionally and is regulated to normally run fast but is periodically stopped and synchronized with crystal oscillator signals. Signals produced by the balance wheel oscillations at (3 + E) H 2 , where # is the error, are fed to a counter 13 which counts up to N pulses at which count it changes the state of a flip-flop 14. A solenoid 16 is thereby activated and stops the balance wheel by moving a member 17 into engagement with a finger 12 on the balance wheel. The high-frequency oscillator signals are divided down to 3H z and fed to a counter 19. When counter 19 has counted N pulses the solenoid is deactivated which releases the balance wheel, thus restarting the watch, and resets both the counters. In a second embodiment, Fig. 2 not shown, the counters are omitted and the flip-flop output is integrated. When a certain integration voltage is reached, a Schmitt trigger energizes the solenoid to stop the watch for an interval (e.g. less than 1/6 second) determined by a monostable circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14460171A | 1971-05-18 | 1971-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1344769A true GB1344769A (en) | 1974-01-23 |
Family
ID=22509309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2196272A Expired GB1344769A (en) | 1971-05-18 | 1972-05-10 | Synchronized quartz crystal watch |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3756014A (en) |
| JP (1) | JPS5226472B1 (en) |
| AU (1) | AU456330B2 (en) |
| BE (1) | BE783649A (en) |
| CA (1) | CA970862A (en) |
| CH (1) | CH551038A (en) |
| DE (1) | DE2222936A1 (en) |
| FR (1) | FR2138117B1 (en) |
| GB (1) | GB1344769A (en) |
| IT (1) | IT957908B (en) |
| NL (1) | NL7206659A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1450071A (en) * | 1972-10-02 | 1976-09-22 | Citizen Watch Co Lgd | Electronic timepiece |
| FR2202318B1 (en) * | 1972-10-11 | 1976-10-29 | Hatot Leon Ets | |
| US3967442A (en) * | 1973-02-01 | 1976-07-06 | Berney Jean Claude | Electric watch having an electromechanical movement including a correction mechanism for small errors |
| CA1056166A (en) * | 1975-03-27 | 1979-06-12 | Jauch, Heinz | Method and aparatus for synchronising a mechanical oscillating system to the accuracy of a quartz standard |
| JPS525566A (en) * | 1975-07-02 | 1977-01-17 | Citizen Watch Co Ltd | Electric clock |
| US4068462A (en) * | 1976-05-17 | 1978-01-17 | Fairchild Camera And Instrument Corporation | Frequency adjustment circuit |
| US4401977A (en) * | 1980-01-07 | 1983-08-30 | Mastiff Security Systems Limited | Radio transmitter for repeated bursts of oscillations |
| FR2521741A1 (en) * | 1982-02-17 | 1983-08-19 | Gorgy Timing | Clock seconds indicator stepping motor synchronisation - by using quartz oscillator and opto-electronic zero position detection |
| CH665082GA3 (en) * | 1986-03-26 | 1988-04-29 | ||
| US4799003A (en) * | 1987-05-28 | 1989-01-17 | Tu Xuan M | Mechanical-to-electrical energy converter |
| EP3130966B1 (en) * | 2015-08-11 | 2018-08-01 | ETA SA Manufacture Horlogère Suisse | Mechanical clockwork provided with a motion feedback system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS42801Y1 (en) * | 1964-04-21 | 1967-01-18 | ||
| CH490710A (en) * | 1966-02-10 | 1969-08-15 | Suisse Horlogerie | Electronic timepiece |
| 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 |
| US3564829A (en) * | 1967-10-19 | 1971-02-23 | Kiyohiro Tsuzuki | Apparatus and method for spinning yarn |
| JPH069145Y2 (en) * | 1988-07-19 | 1994-03-09 | 鐘淵化学工業株式会社 | Insulation wall structure of building |
-
1971
- 1971-05-18 US US00144601A patent/US3756014A/en not_active Expired - Lifetime
-
1972
- 1972-05-03 CA CA141,212A patent/CA970862A/en not_active Expired
- 1972-05-10 DE DE19722222936 patent/DE2222936A1/en active Pending
- 1972-05-10 GB GB2196272A patent/GB1344769A/en not_active Expired
- 1972-05-12 AU AU42227/72A patent/AU456330B2/en not_active Expired
- 1972-05-16 CH CH723872A patent/CH551038A/xx unknown
- 1972-05-17 JP JP47048279A patent/JPS5226472B1/ja active Pending
- 1972-05-17 IT IT50298/72A patent/IT957908B/en active
- 1972-05-17 NL NL7206659A patent/NL7206659A/xx unknown
- 1972-05-18 FR FR7217918A patent/FR2138117B1/fr not_active Expired
- 1972-05-18 BE BE783649A patent/BE783649A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA970862A (en) | 1975-07-08 |
| AU456330B2 (en) | 1974-12-12 |
| BE783649A (en) | 1972-09-18 |
| IT957908B (en) | 1973-10-20 |
| CH723872A4 (en) | 1973-12-28 |
| US3756014A (en) | 1973-09-04 |
| NL7206659A (en) | 1972-11-21 |
| JPS5226472B1 (en) | 1977-07-14 |
| AU4222772A (en) | 1973-11-15 |
| CH551038A (en) | 1974-06-28 |
| FR2138117A1 (en) | 1972-12-29 |
| DE2222936A1 (en) | 1972-11-30 |
| FR2138117B1 (en) | 1974-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |