JPS5535514A - Automatic gain control circuit - Google Patents

Automatic gain control circuit

Info

Publication number
JPS5535514A
JPS5535514A JP10831378A JP10831378A JPS5535514A JP S5535514 A JPS5535514 A JP S5535514A JP 10831378 A JP10831378 A JP 10831378A JP 10831378 A JP10831378 A JP 10831378A JP S5535514 A JPS5535514 A JP S5535514A
Authority
JP
Japan
Prior art keywords
loop
burst
amplitude
control
attenuator
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
JP10831378A
Other languages
Japanese (ja)
Inventor
Yoichi Moriya
Yoshinori Uchida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10831378A priority Critical patent/JPS5535514A/en
Publication of JPS5535514A publication Critical patent/JPS5535514A/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
    • H03G3/20—Automatic control

Landscapes

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

Abstract

PURPOSE:To make the amplitude of each burst constant through adding a burst amplitude control loop to AGC in the demodulator of TDMA digital link of satellite communication. CONSTITUTION:Input from a terminal 1 is applied to a detector 3 that detects the peak value of the whole bursts through a voltage control attenuator 2, and output here is added with a reference voltage 4, subjected to amplification 6 and wave filtering 7, then enters into an attenuator 2, and when the peak value of the input is larger than a reference value, a loop to attenuate it is generated. Further, the burst signal is amplified 9, detected and compared with the output of the detector by a comparator 11, and with its output a loop by which a digital voltage control variable attenuator is generated. With the former loop, control of the whole burst array is implemented, and with the latter loop, amplitude control among bursts is carried out, which follows that the effect that an expected burst amplitude is unified is attained.
JP10831378A 1978-09-04 1978-09-04 Automatic gain control circuit Pending JPS5535514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10831378A JPS5535514A (en) 1978-09-04 1978-09-04 Automatic gain control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10831378A JPS5535514A (en) 1978-09-04 1978-09-04 Automatic gain control circuit

Publications (1)

Publication Number Publication Date
JPS5535514A true JPS5535514A (en) 1980-03-12

Family

ID=14481534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10831378A Pending JPS5535514A (en) 1978-09-04 1978-09-04 Automatic gain control circuit

Country Status (1)

Country Link
JP (1) JPS5535514A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654898A3 (en) * 1993-11-19 1996-01-24 Matsushita Communication Ind Transmission circuit.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654898A3 (en) * 1993-11-19 1996-01-24 Matsushita Communication Ind Transmission circuit.
US5659893A (en) * 1993-11-19 1997-08-19 Matsushita Communication Industrial Co., Ltd. Transmission circuit with improved gain control loop

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