JPS5694293A - Time correction circuit of electrochromic display watch - Google Patents
Time correction circuit of electrochromic display watchInfo
- Publication number
- JPS5694293A JPS5694293A JP17096679A JP17096679A JPS5694293A JP S5694293 A JPS5694293 A JP S5694293A JP 17096679 A JP17096679 A JP 17096679A JP 17096679 A JP17096679 A JP 17096679A JP S5694293 A JPS5694293 A JP S5694293A
- Authority
- JP
- Japan
- Prior art keywords
- correction
- switch
- time
- time correction
- write
- 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
- 239000013078 crystal Substances 0.000 abstract 1
Landscapes
- Electric Clocks (AREA)
Abstract
PURPOSE: To perform desired time correction rapidly by ON-operating correction switch groups while a correction mode select switch is ON.
CONSTITUTION: The reference signal from a reference signal generating part 10 including a crystal oscillator etc. is converted to a pulse train of desired frequency through a frequency dividing circuit 12, after which it is supplied to a watch circuit 14. A correction pulse generating circuit 58 outputs the write-erase pulses for time correction of a pulse width smaller than the write-erase pulses for time displaying. A write control circuit 46 performs writing and erasing of an EC display part 28, and performs the action of controlling the timing thereof by the select mode of a correction mode select switch 48. Desired time correction may be performed by turning ON any of correction switch groups 52 every one time while the switch 48 is ON.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54170966A JPS6042432B2 (en) | 1979-12-28 | 1979-12-28 | Time adjustment circuit for electrochromic display clocks |
| US06/219,910 US4371268A (en) | 1979-12-28 | 1980-12-24 | Time correcting circuit for timepiece with electrochromic display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54170966A JPS6042432B2 (en) | 1979-12-28 | 1979-12-28 | Time adjustment circuit for electrochromic display clocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5694293A true JPS5694293A (en) | 1981-07-30 |
| JPS6042432B2 JPS6042432B2 (en) | 1985-09-21 |
Family
ID=15914662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54170966A Expired JPS6042432B2 (en) | 1979-12-28 | 1979-12-28 | Time adjustment circuit for electrochromic display clocks |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6042432B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937484A (en) * | 1982-08-26 | 1984-02-29 | Rhythm Watch Co Ltd | Time correcting device of electrochromic display timepiece |
| JPS5960281A (en) * | 1982-09-29 | 1984-04-06 | Rhythm Watch Co Ltd | Time corrector for time piece having electrochromic display section |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61162348U (en) * | 1985-03-27 | 1986-10-08 |
-
1979
- 1979-12-28 JP JP54170966A patent/JPS6042432B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937484A (en) * | 1982-08-26 | 1984-02-29 | Rhythm Watch Co Ltd | Time correcting device of electrochromic display timepiece |
| JPS6239953B2 (en) * | 1982-08-26 | 1987-08-26 | Rhythm Watch Co | |
| JPS5960281A (en) * | 1982-09-29 | 1984-04-06 | Rhythm Watch Co Ltd | Time corrector for time piece having electrochromic display section |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6042432B2 (en) | 1985-09-21 |
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