JPS643590A - Time signal generator - Google Patents
Time signal generatorInfo
- Publication number
- JPS643590A JPS643590A JP62158348A JP15834887A JPS643590A JP S643590 A JPS643590 A JP S643590A JP 62158348 A JP62158348 A JP 62158348A JP 15834887 A JP15834887 A JP 15834887A JP S643590 A JPS643590 A JP S643590A
- Authority
- JP
- Japan
- Prior art keywords
- time
- time signal
- memory
- signal generating
- generating means
- 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
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To reduce electric power consumption by providing a count means which counts low-frequency signals while the drop of a source voltage is detected, time signal generating means which generates time signals and memory means. CONSTITUTION:A time signal generator is so constituted that current flows transiently for a prescribed period to the time signal generating means 4 in a backup state 9. The count value read out of the frame counter 3 is time- converted and is then added to the time data saved in the memory 5 through a data bus Bg during a prescribed period. The circuits which operate during the operation stop of the time signal generating means 4 in this case are only the min. circuits including the frame counter 3, the memory 5, a source voltage detecting circuit 6, etc., and the operation time is extremely short as shown in 10, 10a and, therefore, the electric power consumed by a capacitor for backup is extremely small.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158348A JP2576125B2 (en) | 1987-06-25 | 1987-06-25 | Time signal generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158348A JP2576125B2 (en) | 1987-06-25 | 1987-06-25 | Time signal generator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS643590A true JPS643590A (en) | 1989-01-09 |
JP2576125B2 JP2576125B2 (en) | 1997-01-29 |
Family
ID=15669682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62158348A Expired - Lifetime JP2576125B2 (en) | 1987-06-25 | 1987-06-25 | Time signal generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2576125B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03110059A (en) * | 1989-09-22 | 1991-05-10 | Kawasaki Steel Corp | Method and apparatus for removing impurity in molten metal |
JP2008502884A (en) * | 2004-06-15 | 2008-01-31 | ユングハンス、ウーレン、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング | Method and apparatus for setting date display after battery replacement in a watch, particularly a radio-controlled watch |
JP2016225706A (en) * | 2015-05-27 | 2016-12-28 | キヤノン株式会社 | Video recorder, control method therefor, and program, and storge medium |
DE102021109587A1 (en) | 2020-06-04 | 2021-12-09 | Mitsubishi Electric Corporation | Semiconductor device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5569086A (en) * | 1978-11-17 | 1980-05-24 | Matsushita Electric Ind Co Ltd | Timer circuit |
JPS58113889A (en) * | 1981-12-28 | 1983-07-06 | Matsushita Electric Ind Co Ltd | Timer device |
JPS6154291U (en) * | 1984-09-14 | 1986-04-11 |
-
1987
- 1987-06-25 JP JP62158348A patent/JP2576125B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5569086A (en) * | 1978-11-17 | 1980-05-24 | Matsushita Electric Ind Co Ltd | Timer circuit |
JPS58113889A (en) * | 1981-12-28 | 1983-07-06 | Matsushita Electric Ind Co Ltd | Timer device |
JPS6154291U (en) * | 1984-09-14 | 1986-04-11 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03110059A (en) * | 1989-09-22 | 1991-05-10 | Kawasaki Steel Corp | Method and apparatus for removing impurity in molten metal |
JP2008502884A (en) * | 2004-06-15 | 2008-01-31 | ユングハンス、ウーレン、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング | Method and apparatus for setting date display after battery replacement in a watch, particularly a radio-controlled watch |
JP2016225706A (en) * | 2015-05-27 | 2016-12-28 | キヤノン株式会社 | Video recorder, control method therefor, and program, and storge medium |
DE102021109587A1 (en) | 2020-06-04 | 2021-12-09 | Mitsubishi Electric Corporation | Semiconductor device |
Also Published As
Publication number | Publication date |
---|---|
JP2576125B2 (en) | 1997-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071107 Year of fee payment: 11 |