DE3016762C2 - Nachweiseinrichtung in einer elektronischen Uhr - Google Patents
Nachweiseinrichtung in einer elektronischen UhrInfo
- Publication number
- DE3016762C2 DE3016762C2 DE3016762A DE3016762A DE3016762C2 DE 3016762 C2 DE3016762 C2 DE 3016762C2 DE 3016762 A DE3016762 A DE 3016762A DE 3016762 A DE3016762 A DE 3016762A DE 3016762 C2 DE3016762 C2 DE 3016762C2
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- detection
- coil
- magnetic field
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 80
- 230000004913 activation Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 210000000707 wrist Anatomy 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
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/028—Electrodynamic magnetometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
- Electric Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5486279A JPS55147381A (en) | 1979-05-04 | 1979-05-04 | Detector for electronic watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3016762A1 DE3016762A1 (de) | 1980-11-13 |
| DE3016762C2 true DE3016762C2 (de) | 1989-10-12 |
Family
ID=12982391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3016762A Expired DE3016762C2 (de) | 1979-05-04 | 1980-04-30 | Nachweiseinrichtung in einer elektronischen Uhr |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4352172A (en0) |
| JP (1) | JPS55147381A (en0) |
| CH (1) | CH639816B (en0) |
| DE (1) | DE3016762C2 (en0) |
| FR (1) | FR2455763A1 (en0) |
| GB (1) | GB2050655B (en0) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH646301GA3 (en0) * | 1981-12-23 | 1984-11-30 | ||
| GB2134290B (en) * | 1982-12-16 | 1986-02-26 | Suwa Seikosha Kk | An analog electronic timepiece |
| CH654169GA3 (en0) * | 1984-04-25 | 1986-02-14 | ||
| JPH0681551B2 (ja) * | 1984-10-16 | 1994-10-12 | セイコ−電子工業株式会社 | ステップモ−タの回転検出方法 |
| JPS6258189A (ja) * | 1985-09-09 | 1987-03-13 | Seiko Instr & Electronics Ltd | アナログ電子時計 |
| JPS6378090A (ja) * | 1986-09-17 | 1988-04-08 | ア−ル・アウデマルズ ソシエテ アノニム | 電子式識別装置 |
| JP3541601B2 (ja) * | 1997-02-07 | 2004-07-14 | セイコーエプソン株式会社 | ステッピングモーターの制御装置、その制御方法および計時装置 |
| JPH11127595A (ja) * | 1997-08-11 | 1999-05-11 | Seiko Epson Corp | 電子機器 |
| CN102353842B (zh) * | 2011-07-07 | 2015-07-01 | 索肯和平(上海)电气有限公司 | 一种异步电机定子电阻的测量方法 |
| JP7205337B2 (ja) * | 2019-03-25 | 2023-01-17 | セイコーエプソン株式会社 | 電子時計、ムーブメントおよびモーター制御装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6024680B2 (ja) * | 1973-03-07 | 1985-06-14 | セイコーインスツルメンツ株式会社 | 時計用ステツプモ−タの駆動回路 |
| JPS5312669A (en) * | 1976-07-21 | 1978-02-04 | Seiko Instr & Electronics Ltd | Hands reversing device of electronic watch |
| JPS5345575A (en) * | 1976-10-06 | 1978-04-24 | Seiko Epson Corp | Electronic wristwatch |
| JPS53136870A (en) * | 1977-04-23 | 1978-11-29 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS54155079A (en) * | 1978-05-26 | 1979-12-06 | Seiko Instr & Electronics Ltd | Magnetic field detector for electronic watch |
| JPS5515054A (en) * | 1978-07-19 | 1980-02-01 | Seiko Instr & Electronics Ltd | Electronic watch |
-
1979
- 1979-05-04 JP JP5486279A patent/JPS55147381A/ja active Granted
-
1980
- 1980-04-28 US US06/144,662 patent/US4352172A/en not_active Expired - Lifetime
- 1980-04-30 DE DE3016762A patent/DE3016762C2/de not_active Expired
- 1980-05-02 GB GB8014857A patent/GB2050655B/en not_active Expired
- 1980-05-05 CH CH349380A patent/CH639816B/fr unknown
- 1980-05-05 FR FR8009969A patent/FR2455763A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55147381A (en) | 1980-11-17 |
| JPS6128313B2 (en0) | 1986-06-30 |
| FR2455763A1 (fr) | 1980-11-28 |
| FR2455763B1 (en0) | 1984-09-28 |
| DE3016762A1 (de) | 1980-11-13 |
| GB2050655A (en) | 1981-01-07 |
| CH639816GA3 (en0) | 1983-12-15 |
| US4352172A (en) | 1982-09-28 |
| GB2050655B (en) | 1983-04-20 |
| CH639816B (fr) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8127 | New person/name/address of the applicant |
Owner name: SEIKO INSTRUMENTS AND ELECTRONICS LTD., TOKIO, JP |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8366 | Restricted maintained after opposition proceedings | ||
| 8305 | Restricted maintenance of patent after opposition | ||
| D4 | Patent maintained restricted |