DE2529012C3 - Schaltung zur automatischen Dynamik-Kompression oder -Expansion - Google Patents

Schaltung zur automatischen Dynamik-Kompression oder -Expansion

Info

Publication number
DE2529012C3
DE2529012C3 DE2529012A DE2529012A DE2529012C3 DE 2529012 C3 DE2529012 C3 DE 2529012C3 DE 2529012 A DE2529012 A DE 2529012A DE 2529012 A DE2529012 A DE 2529012A DE 2529012 C3 DE2529012 C3 DE 2529012C3
Authority
DE
Germany
Prior art keywords
circuit
input
signal
output
expansion
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.)
Expired
Application number
DE2529012A
Other languages
German (de)
English (en)
Other versions
DE2529012B2 (de
DE2529012A1 (de
Inventor
Gerhard Dr.-Ing. Dickopp
Ernst Dipl.-Ing. Schroeder
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.)
Deutsche Thomson OHG
Original Assignee
Licentia Patent Verwaltungs 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 Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE2529012A priority Critical patent/DE2529012C3/de
Priority to GB22189/76A priority patent/GB1546394A/en
Priority to AU14508/76A priority patent/AU496608B2/en
Priority to DK245076A priority patent/DK245076A/da
Priority to US05/696,422 priority patent/US4035739A/en
Priority to AT0454076A priority patent/AT363125B/de
Priority to JP51074270A priority patent/JPS524755A/ja
Priority to SE7607248A priority patent/SE406138B/xx
Priority to BR7604059A priority patent/BR7604059A/pt
Priority to ES449247A priority patent/ES449247A2/es
Priority to FR7619619A priority patent/FR2317821A2/fr
Priority to BE168380A priority patent/BE843495R/xx
Publication of DE2529012A1 publication Critical patent/DE2529012A1/de
Publication of DE2529012B2 publication Critical patent/DE2529012B2/de
Application granted granted Critical
Publication of DE2529012C3 publication Critical patent/DE2529012C3/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
DE2529012A 1975-06-28 1975-06-28 Schaltung zur automatischen Dynamik-Kompression oder -Expansion Expired DE2529012C3 (de)

Priority Applications (12)

Application Number Priority Date Filing Date Title
DE2529012A DE2529012C3 (de) 1975-06-28 1975-06-28 Schaltung zur automatischen Dynamik-Kompression oder -Expansion
GB22189/76A GB1546394A (en) 1975-06-28 1976-05-28 Compression or expansion of audio frequency signals
AU14508/76A AU496608B2 (en) 1976-06-01 Circuit for automatic dynamic compression or expansion
DK245076A DK245076A (da) 1975-06-28 1976-06-03 Kobling til automatisk dynamikkompression og ekspansion
US05/696,422 US4035739A (en) 1975-06-28 1976-06-15 Signal dynamic compression and expansion circuits
AT0454076A AT363125B (de) 1975-06-28 1976-06-22 Schaltung zur automatischen dynamik-kompression oder -expansion
JP51074270A JPS524755A (en) 1975-06-28 1976-06-23 Compressing or expanding circuit
SE7607248A SE406138B (sv) 1975-06-28 1976-06-23 Kompanderkrets
BR7604059A BR7604059A (pt) 1975-06-28 1976-06-23 Circuito para compressao e expansao dinamica automatica
ES449247A ES449247A2 (es) 1975-06-28 1976-06-25 Mejoras en las conexiones para compresion y expansion auto- maticas de dinamica para aparatos reproductores de sonido.
FR7619619A FR2317821A2 (fr) 1975-06-28 1976-06-28 Dispositif de compression ou d'extension automatique
BE168380A BE843495R (fr) 1975-06-28 1976-06-28 Dispositif de compression ou d'extension atomatique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2529012A DE2529012C3 (de) 1975-06-28 1975-06-28 Schaltung zur automatischen Dynamik-Kompression oder -Expansion

Publications (3)

Publication Number Publication Date
DE2529012A1 DE2529012A1 (de) 1977-01-20
DE2529012B2 DE2529012B2 (de) 1979-10-04
DE2529012C3 true DE2529012C3 (de) 1980-07-03

Family

ID=5950233

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2529012A Expired DE2529012C3 (de) 1975-06-28 1975-06-28 Schaltung zur automatischen Dynamik-Kompression oder -Expansion

Country Status (11)

Country Link
US (1) US4035739A (enExample)
JP (1) JPS524755A (enExample)
AT (1) AT363125B (enExample)
BE (1) BE843495R (enExample)
BR (1) BR7604059A (enExample)
DE (1) DE2529012C3 (enExample)
DK (1) DK245076A (enExample)
ES (1) ES449247A2 (enExample)
FR (1) FR2317821A2 (enExample)
GB (1) GB1546394A (enExample)
SE (1) SE406138B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2030826A (en) * 1977-09-27 1980-04-10 Licentia Gmbh Compression or expansion systems
DE2803751C2 (de) * 1978-01-28 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur automatischen Dynamik- Kompression oder -Expansion
US4210874A (en) * 1978-10-23 1980-07-01 Raytheon Company Gain control amplifier circuit
JPS55158715A (en) * 1979-05-29 1980-12-10 Sony Corp Gain control circuit
DE2941961A1 (de) * 1979-10-17 1981-04-30 Krautkrämer GmbH, 5000 Köln Verfahren zur signalspannungsabhaengigen veraenderung des verstaerkungsfaktors
US4337445A (en) * 1981-01-21 1982-06-29 Sony Corporation Compander circuit which produces variable pre-emphasis and de-emphasis
FR2599580B1 (fr) * 1986-05-30 1988-09-23 Elison Sarl Dispositif de reduction du bruit de fond dans une chaine electroacoustique.
US4782285A (en) * 1986-11-03 1988-11-01 Tektronix, Inc. Variable resolution control system
US5518007A (en) * 1994-12-01 1996-05-21 Becker; Joseph H. Electrode locator
DE602008005467D1 (de) * 2007-08-31 2011-04-21 Analog Devices Inc Variabler schwellenwert einer automatischen grenzwertsteuerung für eine gewünschte kompressionskurve
US8284971B2 (en) * 2008-11-21 2012-10-09 Envoy Medical Corporation Logarithmic compression systems and methods for hearing amplification

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL93506C (enExample) * 1954-06-15
GB1338227A (en) * 1970-01-23 1973-11-21 Dalby Lab Inc Limiters for noise reduction systems
FR2109336A5 (enExample) * 1970-10-13 1972-05-26 Thomson Csf

Also Published As

Publication number Publication date
US4035739A (en) 1977-07-12
JPS524755A (en) 1977-01-14
GB1546394A (en) 1979-05-23
DE2529012B2 (de) 1979-10-04
BE843495R (fr) 1976-10-18
AT363125B (de) 1981-07-10
DE2529012A1 (de) 1977-01-20
BR7604059A (pt) 1977-07-05
FR2317821B1 (enExample) 1980-07-18
ES449247A2 (es) 1977-08-16
FR2317821A2 (fr) 1977-02-04
SE406138B (sv) 1979-01-22
SE7607248L (sv) 1976-12-29
ATA454076A (de) 1980-12-15
AU1450876A (en) 1977-12-08
DK245076A (da) 1976-12-29

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8327 Change in the person/name/address of the patent owner

Owner name: TELEFUNKEN FERNSEH UND RUNDFUNK GMBH, 3000 HANNOVE