JPS5285852A - Electronic portable watch - Google Patents
Electronic portable watchInfo
- Publication number
- JPS5285852A JPS5285852A JP169076A JP169076A JPS5285852A JP S5285852 A JPS5285852 A JP S5285852A JP 169076 A JP169076 A JP 169076A JP 169076 A JP169076 A JP 169076A JP S5285852 A JPS5285852 A JP S5285852A
- Authority
- JP
- Japan
- Prior art keywords
- electronic portable
- portable watch
- decrease
- power consumption
- alternating voltage
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
- G04G9/10—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
PURPOSE:To decrease the power consumption of time display without causing uneven brightness by subjecting hot cathode filaments to alternating voltage driving at a frequency above 20Hz.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP169076A JPS5285852A (en) | 1976-01-08 | 1976-01-08 | Electronic portable watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP169076A JPS5285852A (en) | 1976-01-08 | 1976-01-08 | Electronic portable watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5285852A true JPS5285852A (en) | 1977-07-16 |
Family
ID=11508504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP169076A Pending JPS5285852A (en) | 1976-01-08 | 1976-01-08 | Electronic portable watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5285852A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003029711A (en) * | 2001-07-13 | 2003-01-31 | Noritake Itron Corp | Driving method and drive circuit for fluorescent character display tube |
JP2010145788A (en) * | 2008-12-19 | 2010-07-01 | Noritake Itron Corp | Power supply circuit device of fluorescent display tube |
-
1976
- 1976-01-08 JP JP169076A patent/JPS5285852A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003029711A (en) * | 2001-07-13 | 2003-01-31 | Noritake Itron Corp | Driving method and drive circuit for fluorescent character display tube |
JP2010145788A (en) * | 2008-12-19 | 2010-07-01 | Noritake Itron Corp | Power supply circuit device of fluorescent display tube |
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