CH646302GA3 - Electronic timepiece, especially electronic wristwatch, with electrooptical analogue display - Google Patents
Electronic timepiece, especially electronic wristwatch, with electrooptical analogue display Download PDFInfo
- Publication number
- CH646302GA3 CH646302GA3 CH413180A CH413180A CH646302GA3 CH 646302G A3 CH646302G A3 CH 646302GA3 CH 413180 A CH413180 A CH 413180A CH 413180 A CH413180 A CH 413180A CH 646302G A3 CH646302G A3 CH 646302GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- hand
- image
- electrooptical
- electronic
- analogue display
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
- G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
In order to eliminate the disadvantage consisting in the apparent disappearance of a hand when the position of the small hand (S) becomes the same as that of the big hand (L), for example at 1:05, in an electrooptical analogue device for displaying the time in which the image of the short hand is no wider than the central portion of the image of the long hand, means are provided, in each of the particular positions in which the two hands become superimposed, for shifting the position of the image of the short hand by one step so as to deliver a clear and natural image which is easy to read. It is however advantageous not to apply this special measure to that one of the said particular positions which consists in 12:00. The subject of the invention finds an advantageous application in the field of electronic wristwatches with analogue display with no moving parts. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1979071572U JPS55170693U (en) | 1979-05-28 | 1979-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH646302GA3 true CH646302GA3 (en) | 1984-11-30 |
Family
ID=13464546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH413180A CH646302GA3 (en) | 1979-05-28 | 1980-05-28 | Electronic timepiece, especially electronic wristwatch, with electrooptical analogue display |
Country Status (6)
Country | Link |
---|---|
US (1) | US4310909A (en) |
JP (1) | JPS55170693U (en) |
CH (1) | CH646302GA3 (en) |
DE (1) | DE3020278A1 (en) |
FR (1) | FR2458103A1 (en) |
GB (1) | GB2051429B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2175429B (en) * | 1985-04-25 | 1988-04-27 | Phosphor Prod Co Ltd | Switch/display units |
US5008870A (en) * | 1988-06-28 | 1991-04-16 | Vessa James R | FIFO clock |
US5237545A (en) * | 1992-12-29 | 1993-08-17 | Paul M. Schrader | Electronic simulated sundial timepiece |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2600487A1 (en) * | 1975-02-13 | 1976-08-26 | Timex Corp | ELECTRONIC CLOCK |
US3258906A (en) * | 1964-03-04 | 1966-07-05 | Gen Time Corp | Solid state clock |
US3540209A (en) * | 1968-07-31 | 1970-11-17 | Timex Corp | Horological time display |
US3626410A (en) * | 1969-07-11 | 1971-12-07 | Gen Time Corp | Moving indicator electrochemical display |
GB1472260A (en) * | 1973-10-29 | 1977-05-04 | Murrell N | Electro optical display system in a time-piece |
US3955354A (en) * | 1974-02-11 | 1976-05-11 | Jack S. Kilby | Display for electronic clocks and watches |
US4007583A (en) * | 1975-05-22 | 1977-02-15 | Rca Corporation | Electronic timepiece |
DE2621538C3 (en) * | 1975-05-28 | 1985-06-20 | Fujitsu Ltd., Kawasaki, Kanagawa | Gas discharge indicator |
US4077032A (en) * | 1976-01-07 | 1978-02-28 | Volkman S Alan | Electronic display apparatus |
DE2730069A1 (en) * | 1977-07-02 | 1979-01-11 | Braun Ag | TIMEPIECE WITH A DISPLAY DEVICE |
DE2757502A1 (en) * | 1977-12-22 | 1979-06-28 | Hans Uwe Dipl Phys Reif | Liq. crystal display control system - uses two base voltages applied to electrodes of separated groups |
-
1979
- 1979-05-28 JP JP1979071572U patent/JPS55170693U/ja active Pending
-
1980
- 1980-05-22 GB GB8016919A patent/GB2051429B/en not_active Expired
- 1980-05-22 US US06/152,477 patent/US4310909A/en not_active Expired - Lifetime
- 1980-05-23 FR FR8011544A patent/FR2458103A1/en active Granted
- 1980-05-28 DE DE19803020278 patent/DE3020278A1/en active Granted
- 1980-05-28 CH CH413180A patent/CH646302GA3/en unknown
Also Published As
Publication number | Publication date |
---|---|
JPS55170693U (en) | 1980-12-08 |
DE3020278A1 (en) | 1980-12-11 |
FR2458103B1 (en) | 1985-05-17 |
FR2458103A1 (en) | 1980-12-26 |
US4310909A (en) | 1982-01-12 |
GB2051429A (en) | 1981-01-14 |
GB2051429B (en) | 1983-06-22 |
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