JPS55137710A - Television signal amplifier - Google Patents

Television signal amplifier

Info

Publication number
JPS55137710A
JPS55137710A JP4624779A JP4624779A JPS55137710A JP S55137710 A JPS55137710 A JP S55137710A JP 4624779 A JP4624779 A JP 4624779A JP 4624779 A JP4624779 A JP 4624779A JP S55137710 A JPS55137710 A JP S55137710A
Authority
JP
Japan
Prior art keywords
voltage signal
gain adjustment
feeder
amplification part
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
JP4624779A
Other languages
Japanese (ja)
Other versions
JPS6214962B2 (en
Inventor
Nobutaka Inoue
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.)
Maspro Denkoh Corp
Original Assignee
Maspro Denkoh 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 Maspro Denkoh Corp filed Critical Maspro Denkoh Corp
Priority to JP4624779A priority Critical patent/JPS55137710A/en
Publication of JPS55137710A publication Critical patent/JPS55137710A/en
Publication of JPS6214962B2 publication Critical patent/JPS6214962B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE:To make it possible to remote-control gain adjustment of the amplification part, by transmitting a voltage signal for gain adjustment to the amplification part, which is installed in the antenna side for TV, from the control part, which is installed in the receiver side, through a leading-in feeder. CONSTITUTION:Attenuating circuit 3 and signal extracting circuit 4 are provided in amplification part 2 connected to antenna 1 and are connected from terminal 14 of amplification part 2 to feeder 5 for TV signal leading in. Control part 6 is connected to the TV receiver 10 side of feeder 5. Control part 6 is provided with power supply mechanism 7, oscillator 8 which oscillates a voltage signal for gain adjustment, and voltage signal level adjustment element 9 which can adjust the level of the voltage signal. Then, the voltage signal from oscillator 8 is superposed onto power for the power source supplied to amplification part 2 through mechanism 7 through feeder 5 and is transmitted through element 9. In circuit 4 of amplification part 2, only the voltage signal for gain adjustment is extracted to control the high- frequency resistance of circuit 3 according to the voltage value. Thus, since gain adjustment of the amplification part can be performed by the operation of element 9 and the voltage signal is used, this gain adjustment is not affected by temperature change of the feeder, thereby making an accurate adjustment possible.
JP4624779A 1979-04-16 1979-04-16 Television signal amplifier Granted JPS55137710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4624779A JPS55137710A (en) 1979-04-16 1979-04-16 Television signal amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4624779A JPS55137710A (en) 1979-04-16 1979-04-16 Television signal amplifier

Publications (2)

Publication Number Publication Date
JPS55137710A true JPS55137710A (en) 1980-10-27
JPS6214962B2 JPS6214962B2 (en) 1987-04-04

Family

ID=12741813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4624779A Granted JPS55137710A (en) 1979-04-16 1979-04-16 Television signal amplifier

Country Status (1)

Country Link
JP (1) JPS55137710A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140025U (en) * 1984-08-17 1986-03-13 ホーチキ株式会社 CATV amplifier gain adjustment device
JP2008099128A (en) * 2006-10-13 2008-04-24 San Denshi Kk Power source separated booster
JP2010161475A (en) * 2009-01-06 2010-07-22 Toshiba Corp Array antenna

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140025U (en) * 1984-08-17 1986-03-13 ホーチキ株式会社 CATV amplifier gain adjustment device
JPH0339930Y2 (en) * 1984-08-17 1991-08-22
JP2008099128A (en) * 2006-10-13 2008-04-24 San Denshi Kk Power source separated booster
JP4609798B2 (en) * 2006-10-13 2011-01-12 サン電子株式会社 Separate power booster
JP2010161475A (en) * 2009-01-06 2010-07-22 Toshiba Corp Array antenna

Also Published As

Publication number Publication date
JPS6214962B2 (en) 1987-04-04

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