JPS5487570A - Electronic watch with alarm - Google Patents
Electronic watch with alarmInfo
- Publication number
- JPS5487570A JPS5487570A JP15613777A JP15613777A JPS5487570A JP S5487570 A JPS5487570 A JP S5487570A JP 15613777 A JP15613777 A JP 15613777A JP 15613777 A JP15613777 A JP 15613777A JP S5487570 A JPS5487570 A JP S5487570A
- Authority
- JP
- Japan
- Prior art keywords
- inputted
- output
- alarm
- frequencies
- dividing circuit
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G13/00—Producing acoustic time signals
- G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To electrically absorbe deviations of mechanical resonance frequencies by making driving frequencies of an electro-acoustic transducer plural and making one of them suitably selectable. CONSTITUTION:A frequency dividing circuit 5 for alarm driving frequencies is constituted by T type FFs 4 stages. Then, the output of an oscillation circuit 1 is inputted to a frequency dividing circuit 2, which in turn outputted as time counting or control signal. This is then inputted to the other input end of an AND gate 3 to whose on input end is inputted an alarm coincidence signal A. The output of the AND gate 3 is inputted to the frequency dividing circuit 5 for alarm driving frequencies and the Q output of the final stage of the frequency dividing circuit and the F output of a decoder 14 are inputted to an OR gate 13 to which the Q output of the third stage thereof is inputted. An alarm driving signal is then outputted therefrom. Hence, applying of a suitable signal level to decode mode selecting terminals B, C makes possible driving of the electro-acoustic transducer being a sounding means at the optimum alarm driving frequency and the mechanical deviations of the frequencies from the central frequency are electrically absorbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15613777A JPS5487570A (en) | 1977-12-24 | 1977-12-24 | Electronic watch with alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15613777A JPS5487570A (en) | 1977-12-24 | 1977-12-24 | Electronic watch with alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5487570A true JPS5487570A (en) | 1979-07-12 |
| JPS5760595B2 JPS5760595B2 (en) | 1982-12-20 |
Family
ID=15621126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15613777A Granted JPS5487570A (en) | 1977-12-24 | 1977-12-24 | Electronic watch with alarm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5487570A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102618695B1 (en) * | 2021-12-22 | 2023-12-28 | 경인전자 주식회사 | Remote controller with waterproof function |
-
1977
- 1977-12-24 JP JP15613777A patent/JPS5487570A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5760595B2 (en) | 1982-12-20 |
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