JPS5644876A - Analog indicating electronic clock - Google Patents
Analog indicating electronic clockInfo
- Publication number
- JPS5644876A JPS5644876A JP12162579A JP12162579A JPS5644876A JP S5644876 A JPS5644876 A JP S5644876A JP 12162579 A JP12162579 A JP 12162579A JP 12162579 A JP12162579 A JP 12162579A JP S5644876 A JPS5644876 A JP S5644876A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- step motor
- driving pulse
- overlapping
- driving
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To decrease a consumed current of a step motor for clock by forming an intermittent pulse overlapping high-order frequencies more than two kinds from a usual driving pulse, thereby applying the overlapping driving pulse to the step motor. CONSTITUTION:An intermittent pulse is formed by overlapping high-order frequencies more than two kinds from a usual driving pulse. Then, together with forming the first driving pulse overlapping the intermittent pulse on each pulse by inversion, the second driving pulse having an antiphase thereof is allowed to form, thereby applying said first and second pulses to the step motor 8. For instance, after arranging a wave form shaping circuit 6 as shown in figure, signals 0, 5, 1, 2, 4, 8, 16, 128 and 256Hz are input to output lines 56, 34, 36, 38, 40, 42, 48, and 44 from a frequency divider respectively. A signal having such wave form as shown in figure is allowed to output at output lins, 68 and 70 every one second alternatively. After the amplification thereof in a driving circuit 72, the amplified pulse is applied to the step motor 8 as a driving pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12162579A JPS5644876A (en) | 1979-09-21 | 1979-09-21 | Analog indicating electronic clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12162579A JPS5644876A (en) | 1979-09-21 | 1979-09-21 | Analog indicating electronic clock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5644876A true JPS5644876A (en) | 1981-04-24 |
| JPS6140950B2 JPS6140950B2 (en) | 1986-09-11 |
Family
ID=14815886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12162579A Granted JPS5644876A (en) | 1979-09-21 | 1979-09-21 | Analog indicating electronic clock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5644876A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014017502A1 (en) * | 2012-07-23 | 2014-01-30 | シチズンホールディングス株式会社 | Electronic clock |
-
1979
- 1979-09-21 JP JP12162579A patent/JPS5644876A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014017502A1 (en) * | 2012-07-23 | 2014-01-30 | シチズンホールディングス株式会社 | Electronic clock |
| EP2876508A4 (en) * | 2012-07-23 | 2016-03-23 | Citizen Holdings Co Ltd | Electronic clock |
| JPWO2014017502A1 (en) * | 2012-07-23 | 2016-07-11 | シチズンホールディングス株式会社 | Electronic clock |
| JP2017026639A (en) * | 2012-07-23 | 2017-02-02 | シチズン時計株式会社 | Electronic clock |
| US9612579B2 (en) | 2012-07-23 | 2017-04-04 | Citizen Watch Co., Ltd. | Electronic clock |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6140950B2 (en) | 1986-09-11 |
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