JPS6230596B2 - - Google Patents
Info
- Publication number
- JPS6230596B2 JPS6230596B2 JP57123336A JP12333682A JPS6230596B2 JP S6230596 B2 JPS6230596 B2 JP S6230596B2 JP 57123336 A JP57123336 A JP 57123336A JP 12333682 A JP12333682 A JP 12333682A JP S6230596 B2 JPS6230596 B2 JP S6230596B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- frequency
- step motor
- motor drive
- 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.)
- Expired
Links
- 230000010355 oscillation Effects 0.000 claims abstract description 5
- 230000001052 transient effect Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 description 10
- 230000007257 malfunction Effects 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Control Of Stepping Motors (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57123336A JPS5913972A (ja) | 1982-07-15 | 1982-07-15 | 指針表示電子時計 |
| US06/510,849 US4526475A (en) | 1982-07-15 | 1983-07-05 | Analog display electronic timepiece with multi-speed hand movement |
| GB08318303A GB2123586B (en) | 1982-07-15 | 1983-07-06 | An analog display electronic timepiece |
| CH380483A CH657009GA3 (US07922777-20110412-C00004.png) | 1982-07-15 | 1983-07-11 | |
| HK884/87A HK88487A (en) | 1982-07-15 | 1987-11-26 | An analog display electronic timepiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57123336A JPS5913972A (ja) | 1982-07-15 | 1982-07-15 | 指針表示電子時計 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5913972A JPS5913972A (ja) | 1984-01-24 |
| JPS6230596B2 true JPS6230596B2 (US07922777-20110412-C00004.png) | 1987-07-03 |
Family
ID=14858034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57123336A Granted JPS5913972A (ja) | 1982-07-15 | 1982-07-15 | 指針表示電子時計 |
Country Status (5)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60224088A (ja) * | 1984-04-20 | 1985-11-08 | Citizen Watch Co Ltd | 指針式タイマ |
| US4652159A (en) * | 1984-05-02 | 1987-03-24 | Kabushiki Kaisha Seiko Epson | Printer |
| JP2556277Y2 (ja) * | 1991-06-07 | 1997-12-03 | 竹内工業株式会社 | 口紅等の収納容器 |
| JP2570813Y2 (ja) * | 1991-06-12 | 1998-05-13 | 日本電気アイシーマイコンシステム株式会社 | ステップモータ駆動回路 |
| US6844910B2 (en) * | 1999-12-28 | 2005-01-18 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device and manufacturing method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422865A (en) * | 1977-07-21 | 1979-02-21 | Seiko Epson Corp | Miniature electronic watch |
| US4290129A (en) * | 1978-07-27 | 1981-09-15 | Kabushiki Kaisha Suwa Seikosha | Electronic watch with supplemental function display |
| JPS5522108A (en) * | 1978-08-02 | 1980-02-16 | Seiko Epson Corp | Corrector for electronic watch |
-
1982
- 1982-07-15 JP JP57123336A patent/JPS5913972A/ja active Granted
-
1983
- 1983-07-05 US US06/510,849 patent/US4526475A/en not_active Expired - Lifetime
- 1983-07-06 GB GB08318303A patent/GB2123586B/en not_active Expired
- 1983-07-11 CH CH380483A patent/CH657009GA3/fr not_active IP Right Cessation
-
1987
- 1987-11-26 HK HK884/87A patent/HK88487A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5913972A (ja) | 1984-01-24 |
| CH657009GA3 (US07922777-20110412-C00004.png) | 1986-08-15 |
| US4526475A (en) | 1985-07-02 |
| GB2123586B (en) | 1985-08-29 |
| GB8318303D0 (en) | 1983-08-10 |
| HK88487A (en) | 1987-12-04 |
| GB2123586A (en) | 1984-02-01 |
