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JPS5571977A - Alarm device for hand display type electronic watch - Google Patents

Alarm device for hand display type electronic watch

Info

Publication number
JPS5571977A
JPS5571977A JP14582778A JP14582778A JPS5571977A JP S5571977 A JPS5571977 A JP S5571977A JP 14582778 A JP14582778 A JP 14582778A JP 14582778 A JP14582778 A JP 14582778A JP S5571977 A JPS5571977 A JP S5571977A
Authority
JP
Japan
Prior art keywords
switch
time
alarm
gate
generate
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
JP14582778A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Murata
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP14582778A priority Critical patent/JPS5571977A/en
Publication of JPS5571977A publication Critical patent/JPS5571977A/en
Pending legal-status Critical Current

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  • Electromechanical Clocks (AREA)

Abstract

PURPOSE: To accurately display time and prevent generation of sound at altering set time in an alarm device for a hand display type electronic watch by simultaneously generating sounds for intended switch off state storage, on state and standard pulse as three signals.
CONSTITUTION: OFF of a standard switch M is set through an inverter 42 and stored in a flip-flop FF43 not reset even if the switch M is turned ON to thus cause the flip-flop FF43 to generate high level output. When the switch M is turned ON in the vicinity of the alarm time, high level ON signal is applied to an AND gate 45 applied with OFF storage signal from the flip-flop FF43 to open the AND gate 46 through the gate 45. Initial standard pulse signal formed by a one-minute digit counter 39 and a differentiator 40 is applied to this gate 46 to generate an alarm at accurate time only when the OFF storage, ON and standard pulse signals are simultaneously existed. Even if the switch M is turned ON at the alarm time set altering time, the counter 39 is reset not to generate the standard pulse therefrom to thereby generate no alarm sound.
COPYRIGHT: (C)1980,JPO&Japio
JP14582778A 1978-11-25 1978-11-25 Alarm device for hand display type electronic watch Pending JPS5571977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14582778A JPS5571977A (en) 1978-11-25 1978-11-25 Alarm device for hand display type electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14582778A JPS5571977A (en) 1978-11-25 1978-11-25 Alarm device for hand display type electronic watch

Publications (1)

Publication Number Publication Date
JPS5571977A true JPS5571977A (en) 1980-05-30

Family

ID=15394030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14582778A Pending JPS5571977A (en) 1978-11-25 1978-11-25 Alarm device for hand display type electronic watch

Country Status (1)

Country Link
JP (1) JPS5571977A (en)

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