JPS5444897A - Alarm device - Google Patents

Alarm device

Info

Publication number
JPS5444897A
JPS5444897A JP11180377A JP11180377A JPS5444897A JP S5444897 A JPS5444897 A JP S5444897A JP 11180377 A JP11180377 A JP 11180377A JP 11180377 A JP11180377 A JP 11180377A JP S5444897 A JPS5444897 A JP S5444897A
Authority
JP
Japan
Prior art keywords
circuit
driving
sound
electronic
sound converter
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
Application number
JP11180377A
Other languages
Japanese (ja)
Other versions
JPS6010680B2 (en
Inventor
Kensaburo Tanemura
Yoshiharu Suzuki
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP11180377A priority Critical patent/JPS6010680B2/en
Publication of JPS5444897A publication Critical patent/JPS5444897A/en
Publication of JPS6010680B2 publication Critical patent/JPS6010680B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)

Abstract

PURPOSE: To improve the alarm effect of a simply-constituted alarm device used as a flashing alarm buzzer, by eliminating a difference in alarm effect by sound and light due to a change in environment between the daytime and nighttime by making sound and light tune.
CONSTITUTION: Luminous body 2, luminous-body driving circuit 3 driving this luminous body 2, electronic-tone generating circuit 4 modulating a frequency by the output of driving circuit 3, and sound converter circuit 5 driving this electronic- tone generating circuit 4 are connected in parallel to power supply 1. Further, photoconductive element 9 exposed to ambient light is connected to power supply 1 to obtain the constitution which controls the driving current of sound converter 5. This sound converter 5 is provided with electronic-tone generating circuit 4, transistors 6 and 7 connected to photoconductive element 9, and sound converter 8. An other execution example is that voltage detection circuit 24 is provided across photoconductive element 9 so as to control the driving current of sound converter circuit 5. Then, the intensity of light is made to agree with an electronic tone, thereby improving the alarm effect.
COPYRIGHT: (C)1979,JPO&Japio
JP11180377A 1977-09-16 1977-09-16 alarm Expired JPS6010680B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11180377A JPS6010680B2 (en) 1977-09-16 1977-09-16 alarm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11180377A JPS6010680B2 (en) 1977-09-16 1977-09-16 alarm

Publications (2)

Publication Number Publication Date
JPS5444897A true JPS5444897A (en) 1979-04-09
JPS6010680B2 JPS6010680B2 (en) 1985-03-19

Family

ID=14570544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11180377A Expired JPS6010680B2 (en) 1977-09-16 1977-09-16 alarm

Country Status (1)

Country Link
JP (1) JPS6010680B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102236955A (en) * 2010-04-21 2011-11-09 任文华 Alarm circuit device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102236955A (en) * 2010-04-21 2011-11-09 任文华 Alarm circuit device

Also Published As

Publication number Publication date
JPS6010680B2 (en) 1985-03-19

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