JPS5353378A - Electronic wristwatch - Google Patents
Electronic wristwatchInfo
- Publication number
- JPS5353378A JPS5353378A JP12855176A JP12855176A JPS5353378A JP S5353378 A JPS5353378 A JP S5353378A JP 12855176 A JP12855176 A JP 12855176A JP 12855176 A JP12855176 A JP 12855176A JP S5353378 A JPS5353378 A JP S5353378A
- Authority
- JP
- Japan
- Prior art keywords
- electronic wristwatch
- motor
- drive
- brake
- rotor
- 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
- 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)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To brake a rotor, prevent fluctuations and drive the motor with low power by cutting off wasteful drive current with a transistor in a bipolar type step motor of an electronic wristwatch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12855176A JPS5353378A (en) | 1976-10-26 | 1976-10-26 | Electronic wristwatch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12855176A JPS5353378A (en) | 1976-10-26 | 1976-10-26 | Electronic wristwatch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5353378A true JPS5353378A (en) | 1978-05-15 |
Family
ID=14987546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12855176A Pending JPS5353378A (en) | 1976-10-26 | 1976-10-26 | Electronic wristwatch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5353378A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6045236A (en) * | 1983-08-23 | 1985-03-11 | Canon Inc | Original feeding device |
-
1976
- 1976-10-26 JP JP12855176A patent/JPS5353378A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6045236A (en) * | 1983-08-23 | 1985-03-11 | Canon Inc | Original feeding device |
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