JPS559167A - Electronic clock - Google Patents
Electronic clockInfo
- Publication number
- JPS559167A JPS559167A JP8274978A JP8274978A JPS559167A JP S559167 A JPS559167 A JP S559167A JP 8274978 A JP8274978 A JP 8274978A JP 8274978 A JP8274978 A JP 8274978A JP S559167 A JPS559167 A JP S559167A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal indicator
- zero
- make
- input terminals
- 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)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
PURPOSE: To make it possible to adjust the timing so as to make the voltage impressed on a liquid crystal indicator zero, by providing adjusting external input terminals to an integrated circuit and using the input signals of these terminals.
CONSTITUTION: In an electronic clock provided with liquid crystal indicator 42, oscillator 22, which drives this, dividers 24 and 28; intermittent signal generator 36 sets the time to make the voltage impressed on liquid crystal indicator 42 zero periodically. Input signals are given to controller 122 from adjusting external input terminals 124 and 126, and thereby the timing that makes the voltage impressed on liquid crystal indicator 42 zero is adjusted. By the signals given to input terminals 124 and 126, the effective value of voltage actually to be impressed on the segment under the ON or OFF condition can be freely selected. Hence, on examination of the characteristics of the liquid crystal, the characteristics of the power supply circuit, and the characteristics of the drive circuit, it is possible to match the characteristics of the liquid crystal with the circuit output accurately.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8274978A JPS559167A (en) | 1978-07-07 | 1978-07-07 | Electronic clock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8274978A JPS559167A (en) | 1978-07-07 | 1978-07-07 | Electronic clock |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS559167A true JPS559167A (en) | 1980-01-23 |
Family
ID=13783069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8274978A Pending JPS559167A (en) | 1978-07-07 | 1978-07-07 | Electronic clock |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS559167A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114187A (en) * | 1980-12-30 | 1982-07-15 | Suwa Seikosha Kk | Drive circuit for liquid crystal |
-
1978
- 1978-07-07 JP JP8274978A patent/JPS559167A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114187A (en) * | 1980-12-30 | 1982-07-15 | Suwa Seikosha Kk | Drive circuit for liquid crystal |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5481879A (en) | Electronic watch | |
JPS559167A (en) | Electronic clock | |
JPS53129570A (en) | Crystal oscillator circuit | |
JPS5221870A (en) | Circuit for detecting battery voltage | |
JPS5438165A (en) | Electronic watch | |
JPS5296064A (en) | Electronic timepiece | |
JPS5230470A (en) | Electronic clock | |
JPS5218366A (en) | Liquid rystal clock power circuit | |
JPS55491A (en) | Electronic watch | |
JPS55121511A (en) | Variation system for output voltage of power unit | |
JPS5279742A (en) | Electronic circuit | |
JPS52123662A (en) | Ic inspection circuit in electronic watches | |
JPS52127056A (en) | Counter | |
JPS534495A (en) | Electrochromic display unit | |
JPS5246797A (en) | Electronic apparatus | |
JPS5312663A (en) | Alarm electronic watch | |
JPS5386554A (en) | Pulse generator | |
JPS5373047A (en) | Generation circuit for timing signal | |
JPS533153A (en) | Oscillation circuit of electronic watch | |
JPS5279973A (en) | Frequency signal-to-voltage signal converter | |
JPS51112374A (en) | Electronic watch | |
JPS52149494A (en) | Liquid crystal display device | |
JPS53121666A (en) | Electronic watch | |
JPS55160893A (en) | Electronic watch | |
JPS5555277A (en) | Digital electronic watch |