JPS5660381A - Electronic timepiece with cell life display - Google Patents
Electronic timepiece with cell life displayInfo
- Publication number
- JPS5660381A JPS5660381A JP13677079A JP13677079A JPS5660381A JP S5660381 A JPS5660381 A JP S5660381A JP 13677079 A JP13677079 A JP 13677079A JP 13677079 A JP13677079 A JP 13677079A JP S5660381 A JPS5660381 A JP S5660381A
- Authority
- JP
- Japan
- Prior art keywords
- cell
- circuit
- voltage
- counter
- output
- 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.)
- Granted
Links
Landscapes
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
Abstract
PURPOSE: To display the cell life with flashing without troubles, by detecting lowering of the cell voltage by oscillation stop to switch high and low voltages from the cell through a counter.
CONSTITUTION: When the cell voltage is lowered to stop oscillation of oscillating circuit 1, counter 6 is reset through oscillation stop detecting circuit 5. By this reset output, voltage switching circuit 7 is switched to select the high-voltage output of the cell in stead of the low-voltage output. Then, circuit 1 oscillates again, and a prescribed number of frequency division outputs of frequency dividing circuit 2 is counted by counter 6. Circuit 7 is switched to the low voltage by the count output for the prescribed number of counter 6, and similar iteration is repeated, and the liquid crystal is driven by the output of circuit 7, thus displaying the cell life with flashing on display device 4. Consequently, troubles where the life is displayed even if power of the cell left and the liquid crystal is broken by driving approximating DC at the time near wearing-off of the cell are not generated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13677079A JPS5660381A (en) | 1979-10-23 | 1979-10-23 | Electronic timepiece with cell life display |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13677079A JPS5660381A (en) | 1979-10-23 | 1979-10-23 | Electronic timepiece with cell life display |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5660381A true JPS5660381A (en) | 1981-05-25 |
JPS6253794B2 JPS6253794B2 (en) | 1987-11-12 |
Family
ID=15183100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13677079A Granted JPS5660381A (en) | 1979-10-23 | 1979-10-23 | Electronic timepiece with cell life display |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5660381A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815187A (en) * | 1981-07-20 | 1983-01-28 | Seiko Epson Corp | Multi-function electronic clock |
JPH0559834A (en) * | 1991-09-03 | 1993-03-09 | Yukio Kanazawa | Multi-story garage |
-
1979
- 1979-10-23 JP JP13677079A patent/JPS5660381A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5815187A (en) * | 1981-07-20 | 1983-01-28 | Seiko Epson Corp | Multi-function electronic clock |
JPH0325756B2 (en) * | 1981-07-20 | 1991-04-08 | Seiko Epson Corp | |
JPH0559834A (en) * | 1991-09-03 | 1993-03-09 | Yukio Kanazawa | Multi-story garage |
Also Published As
Publication number | Publication date |
---|---|
JPS6253794B2 (en) | 1987-11-12 |
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