JPS54111800A - Alarm system utilizing wire television - Google Patents

Alarm system utilizing wire television

Info

Publication number
JPS54111800A
JPS54111800A JP1954978A JP1954978A JPS54111800A JP S54111800 A JPS54111800 A JP S54111800A JP 1954978 A JP1954978 A JP 1954978A JP 1954978 A JP1954978 A JP 1954978A JP S54111800 A JPS54111800 A JP S54111800A
Authority
JP
Japan
Prior art keywords
subscriber
audio
subscribers
microphone
group
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
JP1954978A
Other languages
Japanese (ja)
Inventor
Shoichi Suzuki
Tomoyasu Mashita
Yukio Koyama
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP1954978A priority Critical patent/JPS54111800A/en
Publication of JPS54111800A publication Critical patent/JPS54111800A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To correctly catch the condition of the subscriber and to deliver the correct information to other subscribers, by receiving the audio from the microphone group at the subscribers taken place for emergency event at the center station.
CONSTITUTION: The central station 1 is provided with the audio receiver 9, the subscriber terminal unit 14 is with the switch circuit 18, and the subscriber is provided with the microphone group 23 as additional unit newly. Further, if emergent event is taken place at a subscriber and either of the push button group 24 located is depressed, then the circuit 18 makes all the microphone group 23 into operation, stopping the speaker 17 for simultaneous broadcast at the subscriber, and the alarm signal delivery section 20 delivers the audio signal and the alarm signal from the microphone after modulating into a specific frequency. This signal is received with the audio receiver 9 at the central station 1, the content of failure at the subscriber is discriminated with audio, the condition is correctly catched, and the monitor information is broadcast to other subscribers at the same time except the subscriber depressing the button.
COPYRIGHT: (C)1979,JPO&Japio
JP1954978A 1978-02-21 1978-02-21 Alarm system utilizing wire television Pending JPS54111800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1954978A JPS54111800A (en) 1978-02-21 1978-02-21 Alarm system utilizing wire television

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1954978A JPS54111800A (en) 1978-02-21 1978-02-21 Alarm system utilizing wire television

Publications (1)

Publication Number Publication Date
JPS54111800A true JPS54111800A (en) 1979-09-01

Family

ID=12002389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1954978A Pending JPS54111800A (en) 1978-02-21 1978-02-21 Alarm system utilizing wire television

Country Status (1)

Country Link
JP (1) JPS54111800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05168013A (en) * 1991-12-16 1993-07-02 Matsushita Electric Ind Co Ltd System for medical treatment at home

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05168013A (en) * 1991-12-16 1993-07-02 Matsushita Electric Ind Co Ltd System for medical treatment at home

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