CH642813GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH642813GA3 CH642813GA3 CH1010679A CH1010679A CH642813GA3 CH 642813G A3 CH642813G A3 CH 642813GA3 CH 1010679 A CH1010679 A CH 1010679A CH 1010679 A CH1010679 A CH 1010679A CH 642813G A3 CH642813G A3 CH 642813GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- quartz crystal
- capacitor
- crystal resonator
- compensate
- frequency
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 239000010453 quartz Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000003985 ceramic capacitor Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
- H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
- H03L1/028—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only of generators comprising piezoelectric resonators
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02102—Means for compensation or elimination of undesirable effects of temperature influence
Abstract
An electronic timepiece including an X-cut quartz crystal resonator and a capacitor to compensate the frequency-temperature characteristics of said quartz crystal resonator, wherein said capacitor comprises a plurality of ceramic capacitor elements having a different Temperature of Curie Point.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13856478A JPS5565188A (en) | 1978-11-10 | 1978-11-10 | Electronic watch |
Publications (2)
Publication Number | Publication Date |
---|---|
CH642813B CH642813B (en) | |
CH642813GA3 true CH642813GA3 (en) | 1984-05-15 |
Family
ID=15225081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1010679A CH642813B (en) | 1978-11-10 | 1979-11-12 | ELECTRONIC WATCH PART, ESPECIALLY ELECTRONIC BRACELET WATCH, OSCILLATOR CIRCUIT FOR THIS PART OF WATCHMAKING. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4350961A (en) |
JP (1) | JPS5565188A (en) |
CH (1) | CH642813B (en) |
DE (1) | DE2945137A1 (en) |
FR (1) | FR2441252A1 (en) |
GB (1) | GB2035623B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4591807A (en) * | 1984-12-03 | 1986-05-27 | Motorola, Inc. | Low power, low voltage oscillator |
US5952894A (en) * | 1995-11-07 | 1999-09-14 | Nec Corporation | Resonant circuit having a reactance for temperature compensation |
US8136406B2 (en) * | 2009-03-31 | 2012-03-20 | Schlumberger Technology Corporation | Pressure transducer with piezoelectric crystal for harsh environment use |
CN103346751A (en) * | 2013-06-18 | 2013-10-09 | 中国科学院苏州纳米技术与纳米仿生研究所 | Tuning fork matching circuit |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA451243A (en) * | 1948-09-14 | N. Kimball Charles | Oscillator drift compensation device | |
US2256931A (en) * | 1939-09-26 | 1941-09-23 | Bliley Electric Company | Piezoelectric crystal oscillator |
US4109456A (en) * | 1973-05-21 | 1978-08-29 | Kabushiki Kaisha Suwa Seikosha | Ceramic capacitor |
JPS5087559A (en) | 1973-12-05 | 1975-07-14 | ||
JPS528757A (en) * | 1975-07-10 | 1977-01-22 | Citizen Watch Co Ltd | Temperature compensator |
GB1570659A (en) * | 1976-06-30 | 1980-07-02 | Suwa Seikosha Kk | Electronic timepiece |
US4223524A (en) * | 1978-03-17 | 1980-09-23 | Citizen Watch Co., Ltd. | Quartz oscillation circuit for electronic timepieces |
-
1978
- 1978-11-10 JP JP13856478A patent/JPS5565188A/en active Pending
-
1979
- 1979-10-30 US US06/089,462 patent/US4350961A/en not_active Expired - Lifetime
- 1979-11-08 DE DE19792945137 patent/DE2945137A1/en not_active Withdrawn
- 1979-11-08 GB GB7938721A patent/GB2035623B/en not_active Expired
- 1979-11-09 FR FR7927664A patent/FR2441252A1/en active Granted
- 1979-11-12 CH CH1010679A patent/CH642813B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2945137A1 (en) | 1980-05-29 |
FR2441252A1 (en) | 1980-06-06 |
GB2035623B (en) | 1982-11-24 |
US4350961A (en) | 1982-09-21 |
GB2035623A (en) | 1980-06-18 |
JPS5565188A (en) | 1980-05-16 |
CH642813B (en) | |
FR2441252B1 (en) | 1983-05-20 |
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