CH620084GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH620084GA3 CH620084GA3 CH109777A CH109777A CH620084GA3 CH 620084G A3 CH620084G A3 CH 620084GA3 CH 109777 A CH109777 A CH 109777A CH 109777 A CH109777 A CH 109777A CH 620084G A3 CH620084G A3 CH 620084GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- transducer
- rotor
- driving coil
- pulses
- width
- Prior art date
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/923—Specific feedback condition or device
- Y10S388/93—Load or torque
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
- Electric Clocks (AREA)
- Pulse Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP863176A JPS5292560A (en) | 1976-01-29 | 1976-01-29 | Switch box drive pulse width control circuit for electronic clocks |
Publications (2)
Publication Number | Publication Date |
---|---|
CH620084B CH620084B (fr) | |
CH620084GA3 true CH620084GA3 (fr) | 1980-11-14 |
Family
ID=11698289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH109777A CH620084B (fr) | 1976-01-29 | 1977-01-28 | Piece d'horlogerie electronique a affichage analogique. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4114364A (fr) |
JP (1) | JPS5292560A (fr) |
CH (1) | CH620084B (fr) |
GB (1) | GB1545651A (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345575A (en) * | 1976-10-06 | 1978-04-24 | Seiko Epson Corp | Electronic wristwatch |
JPS53114467A (en) * | 1977-03-16 | 1978-10-05 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53136870A (en) * | 1977-04-23 | 1978-11-29 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132386A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132382A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132380A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132384A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
GB2006995B (en) * | 1977-09-26 | 1982-11-17 | Citizen Watch Co Ltd | Drive system for pulse motor |
JPS5477169A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
FR2459579A1 (fr) * | 1979-06-21 | 1981-01-09 | Suisse Horlogerie | Detecteur d'avance d'un moteur pas a pas |
CH640999B (fr) * | 1980-08-25 | Ebauchesfabrik Eta Ag | Procede et dispositif de commande d'une moteur pas a pas de piece d'horlogerie electronique. | |
CH647383GA3 (fr) * | 1981-02-04 | 1985-01-31 | ||
CH644989GA3 (fr) * | 1981-03-18 | 1984-09-14 | ||
CH657960GA3 (fr) * | 1984-03-23 | 1986-10-15 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5319944B2 (fr) * | 1971-09-25 | 1978-06-23 | ||
JPS5542356B2 (fr) * | 1972-12-22 | 1980-10-30 | ||
JPS5740759B2 (fr) * | 1973-07-17 | 1982-08-30 | ||
JPS5336402Y2 (fr) * | 1974-01-17 | 1978-09-05 | ||
US3892066A (en) * | 1974-02-27 | 1975-07-01 | Microna Inc | Synchronized watch movement |
JPS50120373A (fr) * | 1974-03-05 | 1975-09-20 | ||
GB1481024A (en) * | 1974-07-15 | 1977-07-27 | Suisse Horlogerie | Battery powered electronic timepiece with voltage regulation |
JPS5110798A (fr) * | 1974-07-17 | 1976-01-28 | Citizen Watch Co Ltd |
-
1976
- 1976-01-29 JP JP863176A patent/JPS5292560A/ja active Pending
-
1977
- 1977-01-17 GB GB1728/77A patent/GB1545651A/en not_active Expired
- 1977-01-28 CH CH109777A patent/CH620084B/fr unknown
- 1977-01-28 US US05/763,714 patent/US4114364A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5292560A (en) | 1977-08-04 |
CH620084B (fr) | |
US4114364A (en) | 1978-09-19 |
GB1545651A (en) | 1979-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH620084GA3 (fr) | ||
JPS53114467A (en) | Electronic watch | |
JPS5363057A (en) | Electronic wristwatch | |
JPS53132386A (en) | Electronic watch | |
JPS5646695A (en) | Circuit for exciting pulse motor | |
JPS5371709A (en) | Driving unit of power shaft of fuel controller | |
JPS5296570A (en) | Power saving method of crystal wristwatch | |
JPS545520A (en) | Pulse motor power source voltage compensation circuit | |
JPS541665A (en) | Ic for watches | |
JPS5224441A (en) | Low-power memory write mode storage | |
JPS53139566A (en) | Electronic watch | |
JPS5332767A (en) | Electronic wristwatch | |
JPS52104966A (en) | Electronic wrist watch | |
JPS5332770A (en) | Electronic wristwatch | |
JPS5412864A (en) | Electronic watch | |
JPS5321728A (en) | Controller for operating hysteresis motor | |
JPS5384769A (en) | Electronic wristwatch | |
JPS55160882A (en) | Hand type electronic wrist watch | |
JPS5345568A (en) | Electronic watch | |
JPS5370877A (en) | Electronic wristwatch | |
JPS5632783A (en) | Laser light generator | |
JPS5475518A (en) | Electronic clock | |
JPS5384783A (en) | Electronic wristwatch | |
JPS5360267A (en) | Electronic watch | |
JPS5442613A (en) | Drive circuit for step motor |