JPS5542070A - Electronic wrist watch - Google Patents
Electronic wrist watchInfo
- Publication number
- JPS5542070A JPS5542070A JP11617778A JP11617778A JPS5542070A JP S5542070 A JPS5542070 A JP S5542070A JP 11617778 A JP11617778 A JP 11617778A JP 11617778 A JP11617778 A JP 11617778A JP S5542070 A JPS5542070 A JP S5542070A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- watch
- electronic wrist
- enhancement
- wrist watch
- 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
Landscapes
- Electric Clocks (AREA)
Abstract
PURPOSE: To facilitate the enhancement of the accuracy of an electronic wrist watch and the reduction in its size and thickness, by providing a logical means or changing additional capacitances to speed up or down the time reference oscillator of the watch, which employs a constantly elastic meterial.
CONSTITUTION: The additional capacitances 3a, 3b of an oscillation unit 2a including the time reference oscillator 1 employing the constantly elastic material are changed or a switch 4a for altering the frequency division ratio of a frequency divider 4 is operated to produce an output 5 of desired frequency. The frequency of the oscillator is adjusted without deteriorating its proper frequency-temperature characteristic. This results in facilitating the enhancement of the accuracy of the watch and the reduction in its size and thickness.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11617778A JPS5542070A (en) | 1978-09-20 | 1978-09-20 | Electronic wrist watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11617778A JPS5542070A (en) | 1978-09-20 | 1978-09-20 | Electronic wrist watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5542070A true JPS5542070A (en) | 1980-03-25 |
Family
ID=14680693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11617778A Pending JPS5542070A (en) | 1978-09-20 | 1978-09-20 | Electronic wrist watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5542070A (en) |
-
1978
- 1978-09-20 JP JP11617778A patent/JPS5542070A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5240089A (en) | Quartz crystal oscillator | |
JPS5273659A (en) | Frequency synthesizer | |
JPS51124355A (en) | Crystal oscillation circuit | |
JPS5320845A (en) | Quartz crystal watch | |
JPS5542070A (en) | Electronic wrist watch | |
JPS5255361A (en) | Variable frequency oscillator | |
JPS5293258A (en) | Phase syncronizing oscillator | |
JPS5417693A (en) | Composite piezoelectric vibrator unit | |
JPS5412692A (en) | Tuning fork type crystal oscillator for watch use | |
JPS5441060A (en) | Multivibrator | |
JPS5335466A (en) | Variable frequency oscillator circuit | |
JPS5247391A (en) | Quartz crystal oscillator for watch use | |
JPS5333667A (en) | Time regulating element for electronic watches | |
JPS57144483A (en) | Operating clock generating circuit of timepiece device | |
JPS5345190A (en) | Thickness slide crystal vibrator | |
JPS5432363A (en) | Crystal oscillation type wristwatch | |
JPS53136990A (en) | Composite piezoelectric oscillator | |
JPS52120660A (en) | Digital type variable frequency oscillator | |
JPS5236019A (en) | Sound source device of electronic musical instrument | |
JPS5384594A (en) | Frequency adjusting method for diapason type crystal oscillator | |
JPS53148946A (en) | Voltage control oscillation circuit | |
JPS5312663A (en) | Alarm electronic watch | |
JPS5353367A (en) | Electronic watch | |
JPS51138150A (en) | Methof of controlling oscillation frequency of crystal oscillators | |
JPS5353244A (en) | Braking system for watch oscillation circuit |