JPS5498688A - Electronic watch - Google Patents
Electronic watchInfo
- Publication number
- JPS5498688A JPS5498688A JP15317777A JP15317777A JPS5498688A JP S5498688 A JPS5498688 A JP S5498688A JP 15317777 A JP15317777 A JP 15317777A JP 15317777 A JP15317777 A JP 15317777A JP S5498688 A JPS5498688 A JP S5498688A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- contents
- coincidence
- corrected
- digital
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
Abstract
PURPOSE:To let the other be automatically and cooperatively corrected if either of both systems is time-corrected by providing a coincidence circuit which detects the coincidence of the respectively corresponding counters of an analog system counter group and a digital system counter group. CONSTITUTION:In the case of D-A time correction, a mode select switch 17 is operated to bring signal line 18 at L and a time correction method select switch 30 is operated to bring signal line 31 at H, then gates 21, 28, 34 are closed. Next, when the contents of the minute counter 15 and hour counter 16 of the digital system are corrected by operating a digital time display correcting device 38, the contents of the minute counter 11 and hour counter 12 of the analog system becomes non-coincidence and as a coincidence detecting circuit 25 detects this, the fast feed signal 24 of 64 Hz is inputted to a motor driving circuit 3 and a wheel train 5 is fast fed. Accord ing to this, the contents of the minute counter 11 and hour counter 12 of the analog system change and when they coincide with the contents of the digital system, the transmission of the fast feed signal 24 is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15317777A JPS5498688A (en) | 1977-12-20 | 1977-12-20 | Electronic watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15317777A JPS5498688A (en) | 1977-12-20 | 1977-12-20 | Electronic watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5498688A true JPS5498688A (en) | 1979-08-03 |
Family
ID=15556725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15317777A Pending JPS5498688A (en) | 1977-12-20 | 1977-12-20 | Electronic watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5498688A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146667A (en) * | 1978-05-10 | 1979-11-16 | Casio Comput Co Ltd | Time correcting system of electronic watch |
| JPS5699593A (en) * | 1980-01-10 | 1981-08-10 | Amano Corp | Electronic time recorder having automatic correction function |
| JPS56101586A (en) * | 1980-01-18 | 1981-08-14 | Seikosha Co Ltd | Master timepiece |
| JPS5767879A (en) * | 1980-10-15 | 1982-04-24 | Casio Comput Co Ltd | Time correction system for electronic timepiece |
-
1977
- 1977-12-20 JP JP15317777A patent/JPS5498688A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146667A (en) * | 1978-05-10 | 1979-11-16 | Casio Comput Co Ltd | Time correcting system of electronic watch |
| JPS6133149B2 (en) * | 1978-05-10 | 1986-07-31 | Casio Computer Co Ltd | |
| JPS5699593A (en) * | 1980-01-10 | 1981-08-10 | Amano Corp | Electronic time recorder having automatic correction function |
| JPS56101586A (en) * | 1980-01-18 | 1981-08-14 | Seikosha Co Ltd | Master timepiece |
| JPS5767879A (en) * | 1980-10-15 | 1982-04-24 | Casio Comput Co Ltd | Time correction system for electronic timepiece |
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