JPS5642179A - Digital electronic time piece - Google Patents
Digital electronic time pieceInfo
- Publication number
- JPS5642179A JPS5642179A JP11757779A JP11757779A JPS5642179A JP S5642179 A JPS5642179 A JP S5642179A JP 11757779 A JP11757779 A JP 11757779A JP 11757779 A JP11757779 A JP 11757779A JP S5642179 A JPS5642179 A JP S5642179A
- Authority
- JP
- Japan
- Prior art keywords
- time
- address
- ram7
- circuit
- displayed
- 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
Landscapes
- Electric Clocks (AREA)
Abstract
PURPOSE: To enable to display the relation between the plural number of times to make alarm and the present time by a method wherein the plural times are sequentially read out from RAM by means of the stepping address and the residual times counted from the comparator is displayed.
CONSTITUTION: When a switch 11 is operated, 0 address of the RAM7 is addressed and a comparison circuit 8 counts the difference between the present time through a time counting counter 3 and the memory time read out of the RAM7. When this result is negative, the address is advanced via a memory address specification circuit 9. When it is positive, the residual time counted in the circuit 8 is output through a change-over circuit 4 which is switched by a specified cycle via a control circuit 10 and it is displayed in a display unit 6 as well as the present time and the alarm memory time through the counter 3 and the RAM7. The same display is performed for the plural number of times stored in the RAM7 by means of the address advance through the sequential operation of the switch 11, thus, the relation between the alarm time and the present time can be displayed.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11757779A JPS5642179A (en) | 1979-09-13 | 1979-09-13 | Digital electronic time piece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11757779A JPS5642179A (en) | 1979-09-13 | 1979-09-13 | Digital electronic time piece |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642179A true JPS5642179A (en) | 1981-04-20 |
Family
ID=14715256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11757779A Pending JPS5642179A (en) | 1979-09-13 | 1979-09-13 | Digital electronic time piece |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642179A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59193389A (en) * | 1983-04-19 | 1984-11-01 | Seiko Epson Corp | Electronic time piece with sound memory function |
-
1979
- 1979-09-13 JP JP11757779A patent/JPS5642179A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59193389A (en) * | 1983-04-19 | 1984-11-01 | Seiko Epson Corp | Electronic time piece with sound memory function |
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