JPS5441773A - Electronic watch - Google Patents
Electronic watchInfo
- Publication number
- JPS5441773A JPS5441773A JP10849477A JP10849477A JPS5441773A JP S5441773 A JPS5441773 A JP S5441773A JP 10849477 A JP10849477 A JP 10849477A JP 10849477 A JP10849477 A JP 10849477A JP S5441773 A JPS5441773 A JP S5441773A
- Authority
- JP
- Japan
- Prior art keywords
- electronic watch
- temperature
- obtain stable
- same zero
- different frequency
- 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.)
- Pending
Links
- 239000013078 crystal Substances 0.000 abstract 1
Classifications
-
- 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
- G04G3/027—Circuits for deriving low frequency timing pulses from pulses of higher frequency by combining pulse-trains of different frequencies, e.g. obtained from two independent oscillators or from a common oscillator by means of different frequency dividing ratios
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Laminated Bodies (AREA)
- Adornments (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10849477A JPS5441773A (en) | 1977-09-09 | 1977-09-09 | Electronic watch |
| GB7835983A GB2004155B (en) | 1977-09-09 | 1978-09-07 | Quartz electronic timepieces |
| CH949778A CH631315B (fr) | 1977-09-09 | 1978-09-11 | Piece d'horlogerie electronique, notamment montre-bracelet electronique. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10849477A JPS5441773A (en) | 1977-09-09 | 1977-09-09 | Electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5441773A true JPS5441773A (en) | 1979-04-03 |
Family
ID=14486188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10849477A Pending JPS5441773A (en) | 1977-09-09 | 1977-09-09 | Electronic watch |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5441773A (enrdf_load_stackoverflow) |
| CH (1) | CH631315B (enrdf_load_stackoverflow) |
| GB (1) | GB2004155B (enrdf_load_stackoverflow) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH621680B (de) * | 1979-05-22 | Suisse Horlogerie | Oszillator mit temperaturkompensation. | |
| EP0047320A4 (en) * | 1979-12-20 | 1982-05-10 | Ricoh Watch | LINEARIZATION CIRCUIT AND ELECTRONIC CLOCK THAT IS EQUIPPED WITH IT. |
| CH626500B (de) | 1980-01-10 | Suisse Horlogerie | Oszillator mit digitaler temperaturkompensation. | |
| CH625670B (de) | 1980-01-10 | Suisse Horlogerie | Oszillator mit digitaler temperaturkompensation. | |
| JPS57578A (en) * | 1980-06-03 | 1982-01-05 | Seiko Epson Corp | Electronic timepiece |
| CH650122GA3 (enrdf_load_stackoverflow) * | 1981-12-17 | 1985-07-15 | ||
| US5428315A (en) * | 1985-01-22 | 1995-06-27 | The United States Of America As Represented By The Secreatry Of The Army | Method of making radiation hardened quartz crystal oscillators |
-
1977
- 1977-09-09 JP JP10849477A patent/JPS5441773A/ja active Pending
-
1978
- 1978-09-07 GB GB7835983A patent/GB2004155B/en not_active Expired
- 1978-09-11 CH CH949778A patent/CH631315B/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2004155B (en) | 1982-03-17 |
| CH631315GA3 (enrdf_load_stackoverflow) | 1982-08-13 |
| GB2004155A (en) | 1979-03-21 |
| CH631315B (fr) |
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