JPS5448107A - Pilot controlled automatic gain adjusting system - Google Patents

Pilot controlled automatic gain adjusting system

Info

Publication number
JPS5448107A
JPS5448107A JP11485277A JP11485277A JPS5448107A JP S5448107 A JPS5448107 A JP S5448107A JP 11485277 A JP11485277 A JP 11485277A JP 11485277 A JP11485277 A JP 11485277A JP S5448107 A JPS5448107 A JP S5448107A
Authority
JP
Japan
Prior art keywords
circuit
automatic gain
controlled automatic
pilot controlled
adjusting system
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
JP11485277A
Other languages
Japanese (ja)
Inventor
Masashige Sone
Satoshi Arai
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
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11485277A priority Critical patent/JPS5448107A/en
Publication of JPS5448107A publication Critical patent/JPS5448107A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/005—Control by a pilot signal

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To ensure an adjustment of the compressibility and the compressing action range after installation of the divice by using the exponential function circuit and the mulitplication circuit as the gain control circuit. CONSTITUTION:The voltage and the output voltage which passed through line pilot selection filter 2, voltage limit circuit 6 and exponential function circuit 7 respectively and multiplied to each other by multiplication circuit 8 and then fed back. Thus, the level fluctuation is compressed. As a result, the compressibility can be varied freely for the pilot controlled automatic gain control adjuster by just changing the exponent of circuit 7.
JP11485277A 1977-09-22 1977-09-22 Pilot controlled automatic gain adjusting system Pending JPS5448107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11485277A JPS5448107A (en) 1977-09-22 1977-09-22 Pilot controlled automatic gain adjusting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11485277A JPS5448107A (en) 1977-09-22 1977-09-22 Pilot controlled automatic gain adjusting system

Publications (1)

Publication Number Publication Date
JPS5448107A true JPS5448107A (en) 1979-04-16

Family

ID=14648309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11485277A Pending JPS5448107A (en) 1977-09-22 1977-09-22 Pilot controlled automatic gain adjusting system

Country Status (1)

Country Link
JP (1) JPS5448107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2684315A1 (en) * 2017-03-31 2018-10-02 Albala Ingenieros, S.A. AUTOMATIC CONTROL OF TRANSIENT COMPENSATION FOR AUDIO NORMALIZATION SYSTEMS (Machine-translation by Google Translate, not legally binding)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2684315A1 (en) * 2017-03-31 2018-10-02 Albala Ingenieros, S.A. AUTOMATIC CONTROL OF TRANSIENT COMPENSATION FOR AUDIO NORMALIZATION SYSTEMS (Machine-translation by Google Translate, not legally binding)

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