JPS5533640A - Electronic watch with alarm - Google Patents

Electronic watch with alarm

Info

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
Application number
JP10645878A
Other languages
Japanese (ja)
Inventor
Shigeyuki Sakai
Kiyohiro Uehara
Shoichi Yasuda
Hiroyuki Sato
Shigeki Goto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Elemex Corp
Ricoh Co Ltd
Original Assignee
Ricoh Elemex Corp
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Elemex Corp, Ricoh Co Ltd filed Critical Ricoh Elemex Corp
Priority to JP10645878A priority Critical patent/JPS5533640A/en
Publication of JPS5533640A publication Critical patent/JPS5533640A/en
Pending legal-status Critical Current

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
JP10645878A 1978-08-31 1978-08-31 Electronic watch with alarm Pending JPS5533640A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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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