JPS55118282A - Emergency television broadcast system - Google Patents

Emergency television broadcast system

Info

Publication number
JPS55118282A
JPS55118282A JP2575979A JP2575979A JPS55118282A JP S55118282 A JPS55118282 A JP S55118282A JP 2575979 A JP2575979 A JP 2575979A JP 2575979 A JP2575979 A JP 2575979A JP S55118282 A JPS55118282 A JP S55118282A
Authority
JP
Japan
Prior art keywords
signal
emergency
broadcast
circuit
fed
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
JP2575979A
Other languages
Japanese (ja)
Inventor
Yosaji Kobayashi
Yoshitaka Kato
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.)
NIPPON TV HOUSOUMOU KK
Nippon Television Network Corp
Original Assignee
NIPPON TV HOUSOUMOU KK
Nippon Television Network Corp
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 NIPPON TV HOUSOUMOU KK, Nippon Television Network Corp filed Critical NIPPON TV HOUSOUMOU KK
Priority to JP2575979A priority Critical patent/JPS55118282A/en
Publication of JPS55118282A publication Critical patent/JPS55118282A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only

Abstract

PURPOSE:To enable to receive the emergency broadcast automatically with a simple operation at the reception side, by supplying the video signal superimposing the emergency identified signal and the end signal from the output terminal to the transmitter and performing broadcast with the audio signal. CONSTITUTION:In the emergency TV broadcast system suitable for automatical reception at the reception side, the emergency broadcast identifying signal 12 and end signal 13 are fed to the gate circuit 26 and the signals 12 and 13 are fed to the mixing circuit 27 via the circuit 26 only when the circuit 26 is open with the signal from the gate signal generator 21. Further, the signals 12 and 13 from the circuit 27 superimposed on the video signal are fed to the transmitter from the output terminal t2 and broadcast is made together with audio signal. Thus, the emergency broadcast can automatically be received with a simple operation at the reception side.
JP2575979A 1979-03-06 1979-03-06 Emergency television broadcast system Pending JPS55118282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2575979A JPS55118282A (en) 1979-03-06 1979-03-06 Emergency television broadcast system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2575979A JPS55118282A (en) 1979-03-06 1979-03-06 Emergency television broadcast system

Publications (1)

Publication Number Publication Date
JPS55118282A true JPS55118282A (en) 1980-09-11

Family

ID=12174753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2575979A Pending JPS55118282A (en) 1979-03-06 1979-03-06 Emergency television broadcast system

Country Status (1)

Country Link
JP (1) JPS55118282A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6418383A (en) * 1987-07-13 1989-01-23 Kasen Joho Center Warning transmission system
US6517213B1 (en) 1997-03-31 2003-02-11 Idec Izumi Corporation Indicator device and illumination device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6418383A (en) * 1987-07-13 1989-01-23 Kasen Joho Center Warning transmission system
US6517213B1 (en) 1997-03-31 2003-02-11 Idec Izumi Corporation Indicator device and illumination device

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