JPS58116819A - ノイズリダクシヨン装置 - Google Patents

ノイズリダクシヨン装置

Info

Publication number
JPS58116819A
JPS58116819A JP56214825A JP21482581A JPS58116819A JP S58116819 A JPS58116819 A JP S58116819A JP 56214825 A JP56214825 A JP 56214825A JP 21482581 A JP21482581 A JP 21482581A JP S58116819 A JPS58116819 A JP S58116819A
Authority
JP
Japan
Prior art keywords
terminal
circuit
output
resistor
operational amplifier
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
JP56214825A
Other languages
English (en)
Japanese (ja)
Other versions
JPH03815B2 (enrdf_load_stackoverflow
Inventor
Masayuki Katakura
雅幸 片倉
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 JP56214825A priority Critical patent/JPS58116819A/ja
Priority to CA000417843A priority patent/CA1188384A/en
Priority to US06/451,453 priority patent/US4462008A/en
Priority to GB08236737A priority patent/GB2113955B/en
Priority to DE19823248552 priority patent/DE3248552A1/de
Priority to FR8222030A priority patent/FR2519174B1/fr
Publication of JPS58116819A publication Critical patent/JPS58116819A/ja
Publication of JPH03815B2 publication Critical patent/JPH03815B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
JP56214825A 1981-12-29 1981-12-29 ノイズリダクシヨン装置 Granted JPS58116819A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP56214825A JPS58116819A (ja) 1981-12-29 1981-12-29 ノイズリダクシヨン装置
CA000417843A CA1188384A (en) 1981-12-29 1982-12-16 Noise reduction circuit
US06/451,453 US4462008A (en) 1981-12-29 1982-12-20 Noise reduction circuit having voltage to current converting means in the auxiliary channel
GB08236737A GB2113955B (en) 1981-12-29 1982-12-24 Noise reduction circuits
DE19823248552 DE3248552A1 (de) 1981-12-29 1982-12-29 Schaltungsanordnung zum herabsetzen von rauschen
FR8222030A FR2519174B1 (fr) 1981-12-29 1982-12-29 Circuit de reduction de bruit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56214825A JPS58116819A (ja) 1981-12-29 1981-12-29 ノイズリダクシヨン装置

Publications (2)

Publication Number Publication Date
JPS58116819A true JPS58116819A (ja) 1983-07-12
JPH03815B2 JPH03815B2 (enrdf_load_stackoverflow) 1991-01-09

Family

ID=16662149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56214825A Granted JPS58116819A (ja) 1981-12-29 1981-12-29 ノイズリダクシヨン装置

Country Status (1)

Country Link
JP (1) JPS58116819A (enrdf_load_stackoverflow)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133745A (en) * 1976-04-30 1977-11-09 Licentia Gmbh Automatic dynamic compressing or expanding circuit
JPS5441006A (en) * 1977-09-08 1979-03-31 Sony Corp Compression expansion unit
JPS56154836A (en) * 1980-04-30 1981-11-30 Sony Corp Noise reduction circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133745A (en) * 1976-04-30 1977-11-09 Licentia Gmbh Automatic dynamic compressing or expanding circuit
JPS5441006A (en) * 1977-09-08 1979-03-31 Sony Corp Compression expansion unit
JPS56154836A (en) * 1980-04-30 1981-11-30 Sony Corp Noise reduction circuit

Also Published As

Publication number Publication date
JPH03815B2 (enrdf_load_stackoverflow) 1991-01-09

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