JPS57166585A - Electronic timepiece - Google Patents
Electronic timepieceInfo
- Publication number
- JPS57166585A JPS57166585A JP5230181A JP5230181A JPS57166585A JP S57166585 A JPS57166585 A JP S57166585A JP 5230181 A JP5230181 A JP 5230181A JP 5230181 A JP5230181 A JP 5230181A JP S57166585 A JPS57166585 A JP S57166585A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- time
- backlash
- reversing
- pulse motor
- 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
- G04C9/00—Electrically-actuated devices for setting the time-indicating means
- G04C9/08—Electrically-actuated devices for setting the time-indicating means by electric drive
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To eliminate an error in time adjustment due to the influence of a backlash when performing the time adjustment by reversing a pulse motor, by reversing the pulse motor beyond desired time, and then automatically advancing a hand to the desired time. CONSTITUTION:A time reference singal from a quartz oscillating circuit 3 is processed by frequency division 4 and pulses with 1/20Hz are inputted to a driving circuit 9 through a control circuit 6 and a backlash correcting circuit 7, driving a pulse motor 9. When a time correction mode is set by operating an external operation member 5 and a reversing signal for the pulse motor 9 is generated, a back correcting circuit 7 generates one pulse for reverse rotation, one pulse for normal rotation, and a backlash correction signal if a next reversing pulse is not inputted for a certain time after a feed pulse is inputted; and the driving circuit 8 drives the pulse motor 9 to correct the influence of a backlash by a wheel train 10, thus stopping hands 11 at normal positions.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5230181A JPS57166585A (en) | 1981-04-07 | 1981-04-07 | Electronic timepiece |
| US06/361,226 US4470706A (en) | 1981-03-27 | 1982-03-24 | Analog type of electronic timepiece |
| GB08208843A GB2102601B (en) | 1981-03-27 | 1982-03-25 | Analog type of electronic timepiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5230181A JPS57166585A (en) | 1981-04-07 | 1981-04-07 | Electronic timepiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57166585A true JPS57166585A (en) | 1982-10-14 |
Family
ID=12910965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5230181A Pending JPS57166585A (en) | 1981-03-27 | 1981-04-07 | Electronic timepiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57166585A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124494U (en) * | 1991-04-25 | 1992-11-12 | セイコー電子工業株式会社 | Electronic clock with display wheel |
| JP2006064437A (en) * | 2004-08-25 | 2006-03-09 | Calsonic Kansei Corp | Indicating instrument and initialization drive unit |
| JP2014048148A (en) * | 2012-08-31 | 2014-03-17 | Casio Comput Co Ltd | Analog electronic timepiece |
| JP2014048147A (en) * | 2012-08-31 | 2014-03-17 | Casio Comput Co Ltd | Analog electronic timepiece |
-
1981
- 1981-04-07 JP JP5230181A patent/JPS57166585A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04124494U (en) * | 1991-04-25 | 1992-11-12 | セイコー電子工業株式会社 | Electronic clock with display wheel |
| JP2006064437A (en) * | 2004-08-25 | 2006-03-09 | Calsonic Kansei Corp | Indicating instrument and initialization drive unit |
| JP4541071B2 (en) * | 2004-08-25 | 2010-09-08 | カルソニックカンセイ株式会社 | Indicator and initialization drive |
| JP2014048148A (en) * | 2012-08-31 | 2014-03-17 | Casio Comput Co Ltd | Analog electronic timepiece |
| JP2014048147A (en) * | 2012-08-31 | 2014-03-17 | Casio Comput Co Ltd | Analog electronic timepiece |
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