CH639526GA3 - Electronic timepiece - Google Patents
Electronic timepiece Download PDFInfo
- Publication number
- CH639526GA3 CH639526GA3 CH157679A CH157679A CH639526GA3 CH 639526G A3 CH639526G A3 CH 639526GA3 CH 157679 A CH157679 A CH 157679A CH 157679 A CH157679 A CH 157679A CH 639526G A3 CH639526G A3 CH 639526GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- switch
- contact
- electronic timepiece
- crown
- signal
- 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
- G04C3/001—Electromechanical switches for setting or display
- G04C3/007—Electromechanical contact-making and breaking devices acting as pulse generators for setting
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G5/00—Setting, i.e. correcting or changing, the time-indication
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
The electronic timepiece has a crown which is mechanically coupled to a switch (34). The switch (34) acts as a changeover switch, an L-signal being present at one contact and an H-signal being present at the other contact. The common contact of the changeover switch is connected to an interlocking circuit (43) which stores the signals from the switch (34) and eliminates contact bounce effects. Connected downstream of the interlocking circuit (43) is a differentiating circuit (62) which generates short pulses for correcting the time data displayed by the electronic timepiece, the number of which is proportional to the revolutions of the crown. As a result, the time adjustment can be performed in accordance with the procedure with conventional mechanical timepieces. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1689778A JPS54109874A (en) | 1978-02-16 | 1978-02-16 | Electronic wristwatch |
JP12560378A JPS5551386A (en) | 1978-10-12 | 1978-10-12 | Electronic watch |
Publications (2)
Publication Number | Publication Date |
---|---|
CH639526B CH639526B (en) | |
CH639526GA3 true CH639526GA3 (en) | 1983-11-30 |
Family
ID=26353332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH157679A CH639526GA3 (en) | 1978-02-16 | 1979-02-16 | Electronic timepiece |
Country Status (2)
Country | Link |
---|---|
US (1) | US4257114A (en) |
CH (1) | CH639526GA3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4367958A (en) * | 1979-07-17 | 1983-01-11 | Citizen Watch Company Limited | Correction signal generating system for an electronic timepiece |
CH636494B (en) * | 1979-12-06 | Longines Montres Comp D | CONTROL DEVICE FOR THE FUNCTIONS OF AN ELECTRONIC WATCH. | |
CH657959GA3 (en) * | 1984-08-14 | 1986-10-15 | ||
JP5626199B2 (en) * | 2011-12-27 | 2014-11-19 | カシオ計算機株式会社 | Electronic timepiece and method for detecting operation of electronic timepiece |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5146170A (en) * | 1974-10-18 | 1976-04-20 | Hitachi Ltd | |
JPS5238972A (en) * | 1975-09-23 | 1977-03-25 | Seiko Instr & Electronics Ltd | Electronic watch |
-
1979
- 1979-02-08 US US06/010,350 patent/US4257114A/en not_active Expired - Lifetime
- 1979-02-16 CH CH157679A patent/CH639526GA3/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH639526B (en) | |
US4257114A (en) | 1981-03-17 |
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