HK56676A - Improvements in or relating to resonator drive circuits for time measuring devices - Google Patents
Improvements in or relating to resonator drive circuits for time measuring devicesInfo
- Publication number
- HK56676A HK56676A HK566/76*UA HK56676A HK56676A HK 56676 A HK56676 A HK 56676A HK 56676 A HK56676 A HK 56676A HK 56676 A HK56676 A HK 56676A
- Authority
- HK
- Hong Kong
- Prior art keywords
- relating
- measuring devices
- time measuring
- drive circuits
- resonator drive
- Prior art date
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
- G04C3/08—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—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 mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/108—Driving circuits
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N97/00—Electric solid-state thin-film or thick-film devices, not otherwise provided for
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00244644A US3727151A (en) | 1972-04-17 | 1972-04-17 | Integrated circuit for electronic timepieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK56676A true HK56676A (en) | 1976-09-24 |
Family
ID=22923573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK566/76*UA HK56676A (en) | 1972-04-17 | 1976-09-16 | Improvements in or relating to resonator drive circuits for time measuring devices |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3727151A (en) |
| JP (1) | JPS4919932A (en) |
| CA (1) | CA964869A (en) |
| CH (1) | CH556052A (en) |
| DE (1) | DE2263813C3 (en) |
| ES (1) | ES410071A1 (en) |
| FR (1) | FR2180640B1 (en) |
| GB (1) | GB1416728A (en) |
| HK (1) | HK56676A (en) |
| IT (1) | IT973247B (en) |
| NL (1) | NL150240B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5156674A (en) * | 1974-11-14 | 1976-05-18 | Citizen Watch Co Ltd | |
| JPS51138064U (en) * | 1975-04-28 | 1976-11-08 | ||
| JPS51127657A (en) * | 1975-04-28 | 1976-11-06 | Seiko Instr & Electronics Ltd | Standard signal generator |
| US4001869A (en) * | 1975-06-09 | 1977-01-04 | Sprague Electric Company | Mos-capacitor for integrated circuits |
| JPH0540224A (en) * | 1990-07-26 | 1993-02-19 | Fuji Photo Film Co Ltd | Scan type microscope |
| FI124103B (en) * | 2010-02-22 | 2014-03-14 | Murata Electronics Oy | Improved micromechanical construction for a resonator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3421309A (en) * | 1966-06-13 | 1969-01-14 | Bulova Watch Co Inc | Unitized tuning fork vibrator |
-
1972
- 1972-04-17 US US00244644A patent/US3727151A/en not_active Expired - Lifetime
- 1972-12-08 CA CA158,500A patent/CA964869A/en not_active Expired
- 1972-12-20 NL NL727217397A patent/NL150240B/en unknown
- 1972-12-20 GB GB5893972A patent/GB1416728A/en not_active Expired
- 1972-12-27 ES ES410071A patent/ES410071A1/en not_active Expired
- 1972-12-27 CH CH1885672A patent/CH556052A/xx unknown
- 1972-12-28 DE DE2263813A patent/DE2263813C3/en not_active Expired
- 1972-12-28 JP JP48004343A patent/JPS4919932A/ja active Pending
- 1972-12-28 FR FR7246672A patent/FR2180640B1/fr not_active Expired
- 1972-12-29 IT IT33981/72A patent/IT973247B/en active
-
1976
- 1976-09-16 HK HK566/76*UA patent/HK56676A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL150240B (en) | 1976-07-15 |
| DE2263813B2 (en) | 1978-04-13 |
| JPS4919932A (en) | 1974-02-21 |
| CH556052A (en) | 1974-11-15 |
| FR2180640B1 (en) | 1977-04-08 |
| DE2263813A1 (en) | 1973-10-25 |
| ES410071A1 (en) | 1976-04-01 |
| DE2263813C3 (en) | 1978-11-23 |
| GB1416728A (en) | 1975-12-03 |
| CA964869A (en) | 1975-03-25 |
| US3727151A (en) | 1973-04-10 |
| IT973247B (en) | 1974-06-10 |
| NL7217397A (en) | 1973-10-19 |
| CH1885672A4 (en) | 1974-05-15 |
| FR2180640A1 (en) | 1973-11-30 |
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