JPS5516590A - Television relay broadcasting equipment - Google Patents

Television relay broadcasting equipment

Info

Publication number
JPS5516590A
JPS5516590A JP9057878A JP9057878A JPS5516590A JP S5516590 A JPS5516590 A JP S5516590A JP 9057878 A JP9057878 A JP 9057878A JP 9057878 A JP9057878 A JP 9057878A JP S5516590 A JPS5516590 A JP S5516590A
Authority
JP
Japan
Prior art keywords
video signal
waveform
sound
signal
control circuit
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
JP9057878A
Other languages
Japanese (ja)
Other versions
JPS628986B2 (en
Inventor
Tadao Endo
Uimaru Kuribayashi
Yujiro Nakahata
Keisuke Ikeuchi
Tadao Nagatsuma
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.)
NEC Corp
Japan Broadcasting Corp
Original Assignee
NEC Corp
Nippon Hoso Kyokai NHK
Nippon Electric Co Ltd
Japan Broadcasting 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 NEC Corp, Nippon Hoso Kyokai NHK, Nippon Electric Co Ltd, Japan Broadcasting Corp filed Critical NEC Corp
Priority to JP9057878A priority Critical patent/JPS5516590A/en
Publication of JPS5516590A publication Critical patent/JPS5516590A/en
Publication of JPS628986B2 publication Critical patent/JPS628986B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Details Of Television Systems (AREA)
  • Noise Elimination (AREA)
  • Radio Relay Systems (AREA)

Abstract

PURPOSE: To eliminate the need for a compensation circuit for waveform distortion by supplying as a reference signal a video signal, obtained by demodulating part of a transmission output, to the control circuit for a transversal waveform equalizer.
CONSTITUTION: A signal received by receiving antenna 9 is separated into sound and video signal components by input filter 10, frequency converter 11 and sound- picture separator circuit 12. The video signal, after passing thorugh demodulator 13, transversal waveform equalizer 14 and modulator 15, is mixed with the sound signal by synthesizer circuit 16. Further, the composite signal is supplied to transmitting antenna 21 by way of frequency converter 17, power amplifier 18, output filer 19, and directional coupler 20. Then, part of the output of directional coupler 20 is demodulated by demodulator 22 into a video signal with a sound trap, which is supplied to control circuit 23. Control circuit 23 compares a fixed waveform in the video signal with a previously-fored waveform and then controls transversal waveform equalizer 14 according to the comparison result, thereby eliminating a ghost and waveform distortion.
COPYRIGHT: (C)1980,JPO&Japio
JP9057878A 1978-07-21 1978-07-21 Television relay broadcasting equipment Granted JPS5516590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9057878A JPS5516590A (en) 1978-07-21 1978-07-21 Television relay broadcasting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9057878A JPS5516590A (en) 1978-07-21 1978-07-21 Television relay broadcasting equipment

Publications (2)

Publication Number Publication Date
JPS5516590A true JPS5516590A (en) 1980-02-05
JPS628986B2 JPS628986B2 (en) 1987-02-25

Family

ID=14002307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9057878A Granted JPS5516590A (en) 1978-07-21 1978-07-21 Television relay broadcasting equipment

Country Status (1)

Country Link
JP (1) JPS5516590A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021633A (en) * 1983-07-18 1985-02-04 Akiyufueezu Kk Reception circuit
JPS6245557A (en) * 1985-08-17 1987-02-27 ザ　ウエルカム　フアウンデ−シヨン　リミテツド Tricyclic aromatic compound, manufacture and medicinal composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021633A (en) * 1983-07-18 1985-02-04 Akiyufueezu Kk Reception circuit
JPS6245557A (en) * 1985-08-17 1987-02-27 ザ　ウエルカム　フアウンデ−シヨン　リミテツド Tricyclic aromatic compound, manufacture and medicinal composition
JPH0739346B2 (en) * 1985-08-17 1995-05-01 ザ ウエルカム フアウンデ−シヨン リミテツド Antihistamine / antiallergic agent

Also Published As

Publication number Publication date
JPS628986B2 (en) 1987-02-25

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