SG22484G - Apparatus for compressing or expanding the dynamic range of an audio frequency signal - Google Patents

Apparatus for compressing or expanding the dynamic range of an audio frequency signal

Info

Publication number
SG22484G
SG22484G SG224/84A SG22484A SG22484G SG 22484 G SG22484 G SG 22484G SG 224/84 A SG224/84 A SG 224/84A SG 22484 A SG22484 A SG 22484A SG 22484 G SG22484 G SG 22484G
Authority
SG
Singapore
Prior art keywords
compressing
expanding
frequency signal
dynamic range
audio frequency
Prior art date
Application number
SG224/84A
Other languages
English (en)
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of SG22484G publication Critical patent/SG22484G/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
SG224/84A 1978-03-22 1984-03-12 Apparatus for compressing or expanding the dynamic range of an audio frequency signal SG22484G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782812431 DE2812431A1 (de) 1978-03-22 1978-03-22 Verstaerker mit veraenderbarem uebertragungsmass

Publications (1)

Publication Number Publication Date
SG22484G true SG22484G (en) 1985-01-04

Family

ID=6035118

Family Applications (1)

Application Number Title Priority Date Filing Date
SG224/84A SG22484G (en) 1978-03-22 1984-03-12 Apparatus for compressing or expanding the dynamic range of an audio frequency signal

Country Status (9)

Country Link
US (1) US4270103A (it)
JP (1) JPS54128248A (it)
AU (1) AU518353B2 (it)
DE (1) DE2812431A1 (it)
GB (1) GB2017458B (it)
HK (1) HK68784A (it)
IT (1) IT1111123B (it)
MY (1) MY8500624A (it)
SG (1) SG22484G (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156412A (en) * 1979-05-24 1980-12-05 Sony Corp Gain control circuit
DE2941961A1 (de) * 1979-10-17 1981-04-30 Krautkrämer GmbH, 5000 Köln Verfahren zur signalspannungsabhaengigen veraenderung des verstaerkungsfaktors
DE3047766A1 (de) * 1980-12-18 1982-07-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung mit veraenderbarem uebertragungsmass
EP0084323B1 (de) * 1982-01-15 1986-07-30 TELEFUNKEN Fernseh und Rundfunk GmbH Schaltungsanordnung zur Erzeugung einer von einer Wechselspannung abhängigen Steuerspannung
AU596134B2 (en) * 1986-04-03 1990-04-26 Motorola, Inc. Fm receiver with noise suppression during rayleigh faded received signals
US5226178A (en) * 1989-11-01 1993-07-06 Motorola, Inc. Compatible noise reduction system
US8391153B2 (en) * 2006-02-17 2013-03-05 Cisco Technology, Inc. Decoupling radio resource management from an access gateway
CN101496387B (zh) 2006-03-06 2012-09-05 思科技术公司 用于移动无线网络中的接入认证的系统和方法
US7675704B2 (en) * 2006-03-09 2010-03-09 Texas Instruments Incorporated Magnetoresistive head preamplifier circuit with programmable input impedance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA955532A (en) * 1971-04-16 1974-10-01 Masao Tomita Automatic noise reduction system
NO142768C (no) * 1974-01-26 1980-10-08 Licentia Gmbh Kopling for automatisk dynamikk-kompresjon eller -ekspansjon
DE2619192A1 (de) * 1976-04-30 1977-11-17 Licentia Gmbh Schaltung zur automatischen dynamik-kompression oder -expansion
DE2707609A1 (de) * 1977-02-22 1978-08-24 Licentia Gmbh In seiner verstaerkung steuerbarer wechselspannungsverstaerker

Also Published As

Publication number Publication date
IT7920670A0 (it) 1979-03-01
GB2017458A (en) 1979-10-03
US4270103A (en) 1981-05-26
IT1111123B (it) 1986-01-13
AU4514679A (en) 1979-09-27
MY8500624A (en) 1985-12-31
AU518353B2 (en) 1981-09-24
HK68784A (en) 1984-09-14
JPS54128248A (en) 1979-10-04
DE2812431A1 (de) 1979-09-27
GB2017458B (en) 1982-04-07

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