JPS56111485A - Watch - Google Patents
WatchInfo
- Publication number
- JPS56111485A JPS56111485A JP12522780A JP12522780A JPS56111485A JP S56111485 A JPS56111485 A JP S56111485A JP 12522780 A JP12522780 A JP 12522780A JP 12522780 A JP12522780 A JP 12522780A JP S56111485 A JPS56111485 A JP S56111485A
- Authority
- JP
- Japan
- Prior art keywords
- detector circuit
- load current
- rotor
- amplifier
- points
- 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
- 239000003990 capacitor Substances 0.000 abstract 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH813779A CH635722B (fr) | 1979-09-10 | 1979-09-10 | Piece d'horlogerie comportant un circuit de detection et de controle pour moteur pas a pas. |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56111485A true JPS56111485A (en) | 1981-09-03 |
JPH0118398B2 JPH0118398B2 (en, 2012) | 1989-04-05 |
Family
ID=4335723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12522780A Granted JPS56111485A (en) | 1979-09-10 | 1980-09-09 | Watch |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS56111485A (en, 2012) |
CH (1) | CH635722B (en, 2012) |
DE (1) | DE3033350C2 (en, 2012) |
FR (1) | FR2465229A1 (en, 2012) |
GB (1) | GB2059648B (en, 2012) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2900153B1 (ja) * | 1998-02-10 | 1999-06-02 | セイコーインスツルメンツ株式会社 | アナログ電子時計 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5475518A (en) * | 1977-11-29 | 1979-06-16 | Seiko Epson Corp | Electronic clock |
JPS5477165A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53114467A (en) * | 1977-03-16 | 1978-10-05 | Seiko Instr & Electronics Ltd | Electronic watch |
-
1979
- 1979-09-10 CH CH813779A patent/CH635722B/fr not_active IP Right Cessation
-
1980
- 1980-08-29 GB GB8027986A patent/GB2059648B/en not_active Expired
- 1980-09-02 FR FR8018929A patent/FR2465229A1/fr active Granted
- 1980-09-04 DE DE3033350A patent/DE3033350C2/de not_active Expired
- 1980-09-09 JP JP12522780A patent/JPS56111485A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5475518A (en) * | 1977-11-29 | 1979-06-16 | Seiko Epson Corp | Electronic clock |
JPS5477165A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
Also Published As
Publication number | Publication date |
---|---|
FR2465229B1 (en, 2012) | 1983-06-24 |
CH635722GA3 (en, 2012) | 1983-04-29 |
FR2465229A1 (fr) | 1981-03-20 |
DE3033350C2 (de) | 1983-04-28 |
JPH0118398B2 (en, 2012) | 1989-04-05 |
CH635722B (fr) | |
GB2059648B (en) | 1983-06-29 |
DE3033350A1 (de) | 1981-03-12 |
GB2059648A (en) | 1981-04-23 |
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