JPS55158592A - Electronic clock - Google Patents
Electronic clockInfo
- Publication number
- JPS55158592A JPS55158592A JP6584479A JP6584479A JPS55158592A JP S55158592 A JPS55158592 A JP S55158592A JP 6584479 A JP6584479 A JP 6584479A JP 6584479 A JP6584479 A JP 6584479A JP S55158592 A JPS55158592 A JP S55158592A
- Authority
- JP
- Japan
- Prior art keywords
- time
- down counter
- circuit
- timer
- instruction
- 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)
- Measurement Of Predetermined Time Intervals (AREA)
Abstract
PURPOSE: To provide an electronic clock having a timer for displaying remaining time which permits informing the elapse of time at regular intervals, by furnishing the clock with an ability to preset a setting time every time the content of a down counter for use in counting the remaining time has become zero.
CONSTITUTION: A time to be set by a timer is memorized in a memory circuit 5 by switch signals input thereinto from input terminals S1, S2. When an instruction for starting the timer is given, a presetting instruction is given from a mode discriminating circuit 10 to a down counter 4 so that the down counter 4 reads as a presetting value counted data held by the memory circuit 5, to start at the same time down counting by an output pulse from a frequency dividing circuit 2. When the content of the down counter has become zero, a detector circuit 14 is actuated to give again a presetting instruction to the down counter 4. A timer data output circuit 11 is adapted to actuate an alarm 13 when it receives once a zero detected signal from the detector circuit 14.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6584479A JPS55158592A (en) | 1979-05-28 | 1979-05-28 | Electronic clock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6584479A JPS55158592A (en) | 1979-05-28 | 1979-05-28 | Electronic clock |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55158592A true JPS55158592A (en) | 1980-12-10 |
Family
ID=13298718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6584479A Pending JPS55158592A (en) | 1979-05-28 | 1979-05-28 | Electronic clock |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55158592A (en) |
-
1979
- 1979-05-28 JP JP6584479A patent/JPS55158592A/en active Pending
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