GB2002982B - Quartz crystal timepiece - Google Patents
Quartz crystal timepieceInfo
- Publication number
- GB2002982B GB2002982B GB7833139A GB7833139A GB2002982B GB 2002982 B GB2002982 B GB 2002982B GB 7833139 A GB7833139 A GB 7833139A GB 7833139 A GB7833139 A GB 7833139A GB 2002982 B GB2002982 B GB 2002982B
- Authority
- GB
- United Kingdom
- Prior art keywords
- quartz crystal
- crystal timepiece
- timepiece
- quartz
- crystal
- 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 1
- 239000010453 quartz Substances 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title 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
- H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
- H03L1/027—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using frequency conversion means which is variable with temperature, e.g. mixer, frequency divider, pulse add/substract logic circuit
-
- 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
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
- H03K3/03—Astable circuits
- H03K3/0307—Stabilisation of output, e.g. using crystal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electric Clocks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9854677A JPS5432363A (en) | 1977-08-17 | 1977-08-17 | Crystal oscillation type wristwatch |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2002982A GB2002982A (en) | 1979-02-28 |
GB2002982B true GB2002982B (en) | 1982-01-13 |
Family
ID=14222677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7833139A Expired GB2002982B (en) | 1977-08-17 | 1978-08-11 | Quartz crystal timepiece |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5432363A (en) |
GB (1) | GB2002982B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH650122GA3 (en) * | 1981-12-17 | 1985-07-15 | ||
JPS60182143U (en) * | 1984-05-14 | 1985-12-03 | 武内プレス工業株式会社 | Multicolor curved dry offset printing machine |
-
1977
- 1977-08-17 JP JP9854677A patent/JPS5432363A/en active Pending
-
1978
- 1978-08-11 GB GB7833139A patent/GB2002982B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5432363A (en) | 1979-03-09 |
GB2002982A (en) | 1979-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920811 |