JPS5533640A - Electronic watch with alarm - Google Patents
Electronic watch with alarmInfo
- Publication number
- JPS5533640A JPS5533640A JP10645878A JP10645878A JPS5533640A JP S5533640 A JPS5533640 A JP S5533640A JP 10645878 A JP10645878 A JP 10645878A JP 10645878 A JP10645878 A JP 10645878A JP S5533640 A JPS5533640 A JP S5533640A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- alarm
- watch
- wrist
- sensor
- 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
Abstract
PURPOSE: To control the alarm sound volume thereby to attain the fitting to the circumstances by providing a sensor for detecting whether a watch is worn on a wrist or not.
CONSTITUTION: When a watch is worn on a wrist, a rear cover 1 and an electrode 3 are conducted so that the voltage at the watch case is applied to the amplifier 4 of high input impedance feed detecting signals from the terminal 6 of a sensor to a control circuit 12. When the alarm time is reached, the output of an alarm signal generating circuit 11 is introduced into the circuit 12 in response to the signals from a coincidence circuit 13 so that the output of the circuit 12 drives an alarm sound generating device 14 thereby to generate alarm sounds several times. When the watch is removed from the wrist, no output is generated from the sensor to bring the circuit 12 into non-control condition so that the alarm sounds are continuously generated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10645878A JPS5533640A (en) | 1978-08-31 | 1978-08-31 | Electronic watch with alarm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10645878A JPS5533640A (en) | 1978-08-31 | 1978-08-31 | Electronic watch with alarm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5533640A true JPS5533640A (en) | 1980-03-08 |
Family
ID=14434136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10645878A Pending JPS5533640A (en) | 1978-08-31 | 1978-08-31 | Electronic watch with alarm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5533640A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5258961A (en) * | 1975-11-11 | 1977-05-14 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS534577A (en) * | 1976-07-02 | 1978-01-17 | Citizen Watch Co Ltd | Electronic timepiece with buzzer means |
-
1978
- 1978-08-31 JP JP10645878A patent/JPS5533640A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5258961A (en) * | 1975-11-11 | 1977-05-14 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS534577A (en) * | 1976-07-02 | 1978-01-17 | Citizen Watch Co Ltd | Electronic timepiece with buzzer means |
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