CH624818GA3 - - Google Patents
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- Publication number
- CH624818GA3 CH624818GA3 CH1586177A CH1586177A CH624818GA3 CH 624818G A3 CH624818G A3 CH 624818GA3 CH 1586177 A CH1586177 A CH 1586177A CH 1586177 A CH1586177 A CH 1586177A CH 624818G A3 CH624818G A3 CH 624818GA3
- Authority
- CH
- Switzerland
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19772749141 DE2749141A1 (en) | 1977-11-03 | 1977-11-03 | ELECTRIC CLOCK |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CH624818B CH624818B (en) | |
| CH624818GA3 true CH624818GA3 (en) | 1981-08-31 |
Family
ID=6022901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1586177A CH624818B (en) | 1977-11-03 | 1977-12-22 | ELECTRIC CLOCK. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4254491A (en) |
| JP (1) | JPS5468674A (en) |
| AR (1) | AR220153A1 (en) |
| AU (1) | AU520115B2 (en) |
| BR (1) | BR7807133A (en) |
| CH (1) | CH624818B (en) |
| DE (1) | DE2749141A1 (en) |
| ES (1) | ES474038A1 (en) |
| FR (1) | FR2408166A1 (en) |
| GB (1) | GB2007408B (en) |
| ZA (1) | ZA785653B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4359751A (en) * | 1979-09-04 | 1982-11-16 | Kaye Instruments, Inc. | Stepper motor for data recorder |
| JPS5643575A (en) * | 1979-09-18 | 1981-04-22 | Seiko Instr & Electronics Ltd | Electronic clock |
| JPS56164984A (en) * | 1980-05-23 | 1981-12-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS60127576A (en) * | 1983-12-15 | 1985-07-08 | Mitsubishi Electric Corp | Magnetic disk device |
| CA1239439A (en) * | 1984-03-19 | 1988-07-19 | William E. Schmitz | Multiple phase stepper motor torque control apparatus and method |
| US5253229A (en) * | 1988-04-06 | 1993-10-12 | Seiko Epson Corporation | Electronic timepiece including integrated circuitry |
| US5255247A (en) * | 1988-04-06 | 1993-10-19 | Seiko Epson Corporation | Electronic timepiece including integrated circuitry |
| JPH0729513Y2 (en) * | 1988-04-06 | 1995-07-05 | セイコーエプソン株式会社 | Electronic clock circuit |
| JPH0332396A (en) * | 1989-06-28 | 1991-02-12 | Sharp Corp | Stepping motor driver |
| US5105140A (en) * | 1990-01-11 | 1992-04-14 | Baxer International Inc. | Peristaltic pump motor drive |
| JP2002341065A (en) * | 2001-05-21 | 2002-11-27 | Seiko Instruments Inc | Analog electronic timepiece |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3566600A (en) * | 1968-06-21 | 1971-03-02 | Matsushita Electric Ind Co Ltd | Electric time-piece |
| FR2218588B1 (en) * | 1973-02-19 | 1977-09-16 | Kienzle Uhrenfabriken Gmbh | |
| DE2359142C2 (en) * | 1973-11-28 | 1982-04-22 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Electric clock with stepper motor |
| US4055785A (en) * | 1976-01-12 | 1977-10-25 | Fumio Nakajima | Stepping motor for electronic timepiece |
| US4127801A (en) * | 1977-05-16 | 1978-11-28 | The Superior Electric Company | Power chopper supply for a bifilar wound stepping motor |
-
1977
- 1977-11-03 DE DE19772749141 patent/DE2749141A1/en not_active Withdrawn
- 1977-12-22 CH CH1586177A patent/CH624818B/en unknown
-
1978
- 1978-09-26 FR FR7827544A patent/FR2408166A1/en not_active Withdrawn
- 1978-10-06 AR AR273995A patent/AR220153A1/en active
- 1978-10-06 ZA ZA00785653A patent/ZA785653B/en unknown
- 1978-10-07 ES ES474038A patent/ES474038A1/en not_active Expired
- 1978-10-16 JP JP12628678A patent/JPS5468674A/en active Pending
- 1978-10-20 AU AU40931/78A patent/AU520115B2/en not_active Expired
- 1978-10-24 GB GB7841792A patent/GB2007408B/en not_active Expired
- 1978-10-30 BR BR7807133A patent/BR7807133A/en unknown
- 1978-10-31 US US05/956,399 patent/US4254491A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AR220153A1 (en) | 1980-10-15 |
| AU520115B2 (en) | 1982-01-14 |
| AU4093178A (en) | 1980-04-24 |
| GB2007408A (en) | 1979-05-16 |
| CH624818B (en) | |
| DE2749141A1 (en) | 1979-05-10 |
| US4254491A (en) | 1981-03-03 |
| GB2007408B (en) | 1982-05-12 |
| FR2408166A1 (en) | 1979-06-01 |
| JPS5468674A (en) | 1979-06-01 |
| ZA785653B (en) | 1979-10-31 |
| ES474038A1 (en) | 1979-05-01 |
| BR7807133A (en) | 1979-07-17 |