JPS5521683A - Television relay and broadcasting unit - Google Patents

Television relay and broadcasting unit

Info

Publication number
JPS5521683A
JPS5521683A JP9531678A JP9531678A JPS5521683A JP S5521683 A JPS5521683 A JP S5521683A JP 9531678 A JP9531678 A JP 9531678A JP 9531678 A JP9531678 A JP 9531678A JP S5521683 A JPS5521683 A JP S5521683A
Authority
JP
Japan
Prior art keywords
circuit
carrier
output
fed
video
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
JP9531678A
Other languages
Japanese (ja)
Inventor
Nobuyoshi Ito
Masaaki Andou
Shinji Okawa
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9531678A priority Critical patent/JPS5521683A/en
Publication of JPS5521683A publication Critical patent/JPS5521683A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make unnecessary the adjustment of frequency characteristics and the usage of filters and to prevent the deficiency of video quality, by holding the output of the relay unit for video as well as audio at constant level, when the level of the audio carrier is fluctuated due to fading or the like.
CONSTITUTION: The signal fed to the input terminal A is outputted to the output terminal B via the gain adjusting circuit 1, tilt adjusting circuit 2 and branch circuit 3. Further, a part of the output is picked up from the circuit 3 and it is fed to the detection circuits 4 and 5 to pick up separately only the carrier and audio carrier and they are fed to the comparison control circuit 8 via the detection circuits 6 and 7. Further, the tilt adjusting circuit 2 is controlled so that the output difference between the video carrier and audio carrier can be specified value with the control circuit 8. On the other hand, the video carrier signal picked up with the detection circuit 4 is detected with the detection circuit 6 and is fed to the gain control circuit 9. The gain adjusting circuit 1 is controlled with the output of the circuit 9 to make unnecessary the adjustment of the frequency characteristics and the usage of filter.
COPYRIGHT: (C)1980,JPO&Japio
JP9531678A 1978-08-03 1978-08-03 Television relay and broadcasting unit Pending JPS5521683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9531678A JPS5521683A (en) 1978-08-03 1978-08-03 Television relay and broadcasting unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9531678A JPS5521683A (en) 1978-08-03 1978-08-03 Television relay and broadcasting unit

Publications (1)

Publication Number Publication Date
JPS5521683A true JPS5521683A (en) 1980-02-15

Family

ID=14134339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9531678A Pending JPS5521683A (en) 1978-08-03 1978-08-03 Television relay and broadcasting unit

Country Status (1)

Country Link
JP (1) JPS5521683A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114578A (en) * 1981-12-07 1983-07-07 ソシエテ・アノニム・エル・ジエイ・テ・ラボラトワ−ル・ジエネラル・デ・テレコミユニカシイオン Television signal retransmitter in common channel with automatic control function of video/voice ratio

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114578A (en) * 1981-12-07 1983-07-07 ソシエテ・アノニム・エル・ジエイ・テ・ラボラトワ−ル・ジエネラル・デ・テレコミユニカシイオン Television signal retransmitter in common channel with automatic control function of video/voice ratio
JPH0370434B2 (en) * 1981-12-07 1991-11-07 Eru Jei Te Lab Jeneraru De Terekomyunikashiion Sa

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