JPS5443448A - Compressor - Google Patents

Compressor

Info

Publication number
JPS5443448A
JPS5443448A JP10963477A JP10963477A JPS5443448A JP S5443448 A JPS5443448 A JP S5443448A JP 10963477 A JP10963477 A JP 10963477A JP 10963477 A JP10963477 A JP 10963477A JP S5443448 A JPS5443448 A JP S5443448A
Authority
JP
Japan
Prior art keywords
amplifier
emphasis amount
level
gain
input terminal
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
JP10963477A
Other languages
Japanese (ja)
Inventor
Yuzo Fuse
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP10963477A priority Critical patent/JPS5443448A/en
Publication of JPS5443448A publication Critical patent/JPS5443448A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

PURPOSE: To increase the emphasis amount for the lower input signal level and to decrease the emphasis amount for the higher input level respectively by detecting and controlling the gain of the variable gain amplifier via the level detector.
CONSTITUTION: Input terminal 1 is connected to the inverse input terminal of operational amplifier 5 via resistance 6; feedback resistance 7 is connected between the output terminal and the inverse input terminal of amplifier 5; variable gain amplifier 2 is connected to the output side of amplifier 5; and negative feedback circuit 8 featuring the frequency characteristics is connected between the non-inverse input terminals of amplifier 2 and 5. Then the gain of amplifier 2 is detected and controlled via level detector 4 so that the emphasis amount is increased for the lower input signal level and the emphasis amount is decreased for the higher input level respectively.
COPYRIGHT: (C)1979,JPO&Japio
JP10963477A 1977-09-12 1977-09-12 Compressor Pending JPS5443448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10963477A JPS5443448A (en) 1977-09-12 1977-09-12 Compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10963477A JPS5443448A (en) 1977-09-12 1977-09-12 Compressor

Publications (1)

Publication Number Publication Date
JPS5443448A true JPS5443448A (en) 1979-04-06

Family

ID=14515241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10963477A Pending JPS5443448A (en) 1977-09-12 1977-09-12 Compressor

Country Status (1)

Country Link
JP (1) JPS5443448A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379549U (en) * 1989-12-05 1991-08-14
CN110073594A (en) * 2017-03-14 2019-07-30 华为技术有限公司 Closed-loop automatic gain control in linear burst mode transimpedance amplifier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0379549U (en) * 1989-12-05 1991-08-14
CN110073594A (en) * 2017-03-14 2019-07-30 华为技术有限公司 Closed-loop automatic gain control in linear burst mode transimpedance amplifier
CN110073594B (en) * 2017-03-14 2021-12-03 华为技术有限公司 Closed loop automatic gain control in linear burst mode transferred impedance amplifier

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