JPS5739375A - Electronic timepiece - Google Patents
Electronic timepieceInfo
- Publication number
- JPS5739375A JPS5739375A JP11416280A JP11416280A JPS5739375A JP S5739375 A JPS5739375 A JP S5739375A JP 11416280 A JP11416280 A JP 11416280A JP 11416280 A JP11416280 A JP 11416280A JP S5739375 A JPS5739375 A JP S5739375A
- Authority
- JP
- Japan
- Prior art keywords
- main driving
- revolution detection
- timings
- kinds
- signals
- 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
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)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11416280A JPS5739375A (en) | 1980-08-20 | 1980-08-20 | Electronic timepiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11416280A JPS5739375A (en) | 1980-08-20 | 1980-08-20 | Electronic timepiece |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5739375A true JPS5739375A (en) | 1982-03-04 |
JPS6363875B2 JPS6363875B2 (ja) | 1988-12-08 |
Family
ID=14630708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11416280A Granted JPS5739375A (en) | 1980-08-20 | 1980-08-20 | Electronic timepiece |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5739375A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58213279A (ja) * | 1982-06-04 | 1983-12-12 | Seiko Epson Corp | アナログ電子時計 |
JPS63205590A (ja) * | 1987-02-20 | 1988-08-25 | Seikosha Co Ltd | 電磁駆動回路 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5477162A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS5533642A (en) * | 1978-08-31 | 1980-03-08 | Seiko Instr & Electronics Ltd | Step motor device for electronic watch |
JPS5717884A (en) * | 1980-07-08 | 1982-01-29 | Citizen Watch Co Ltd | Electronic timepiece |
-
1980
- 1980-08-20 JP JP11416280A patent/JPS5739375A/ja active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5477162A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS5533642A (en) * | 1978-08-31 | 1980-03-08 | Seiko Instr & Electronics Ltd | Step motor device for electronic watch |
JPS5717884A (en) * | 1980-07-08 | 1982-01-29 | Citizen Watch Co Ltd | Electronic timepiece |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58213279A (ja) * | 1982-06-04 | 1983-12-12 | Seiko Epson Corp | アナログ電子時計 |
JPH0352589B2 (ja) * | 1982-06-04 | 1991-08-12 | Seiko Epson Corp | |
JPS63205590A (ja) * | 1987-02-20 | 1988-08-25 | Seikosha Co Ltd | 電磁駆動回路 |
Also Published As
Publication number | Publication date |
---|---|
JPS6363875B2 (ja) | 1988-12-08 |
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