DE2912346C2 - Kompander zur Umschaltung auf unterschiedliche Kompanderkennlinien - Google Patents

Kompander zur Umschaltung auf unterschiedliche Kompanderkennlinien

Info

Publication number
DE2912346C2
DE2912346C2 DE2912346A DE2912346A DE2912346C2 DE 2912346 C2 DE2912346 C2 DE 2912346C2 DE 2912346 A DE2912346 A DE 2912346A DE 2912346 A DE2912346 A DE 2912346A DE 2912346 C2 DE2912346 C2 DE 2912346C2
Authority
DE
Germany
Prior art keywords
actuator
pass filter
circuit
low
signal path
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
DE2912346A
Other languages
German (de)
English (en)
Other versions
DE2912346A1 (de
Inventor
Ernst Dipl.-Ing. 3000 Hannover Schröder
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 DE2912346A priority Critical patent/DE2912346C2/de
Priority to NZ192864A priority patent/NZ192864A/xx
Priority to AU55668/80A priority patent/AU534566B2/en
Priority to CA000347592A priority patent/CA1137879A/en
Priority to AR280332A priority patent/AR223516A1/es
Priority to US06/131,846 priority patent/US4306202A/en
Priority to DD80219946A priority patent/DD149744A1/de
Priority to JP3917680A priority patent/JPS55134517A/ja
Priority to ZA00801869A priority patent/ZA801869B/xx
Priority to GB8010636A priority patent/GB2045587B/en
Priority to BR8001929A priority patent/BR8001929A/pt
Publication of DE2912346A1 publication Critical patent/DE2912346A1/de
Application granted granted Critical
Publication of DE2912346C2 publication Critical patent/DE2912346C2/de
Priority to SG223/84A priority patent/SG22384G/en
Priority to HK688/84A priority patent/HK68884A/xx
Priority to MY625/85A priority patent/MY8500625A/xx
Expired legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/40—Introducing phosphorus atoms or phosphorus-containing groups
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Networks Using Active Elements (AREA)
DE2912346A 1979-03-29 1979-03-29 Kompander zur Umschaltung auf unterschiedliche Kompanderkennlinien Expired DE2912346C2 (de)

Priority Applications (14)

Application Number Priority Date Filing Date Title
DE2912346A DE2912346C2 (de) 1979-03-29 1979-03-29 Kompander zur Umschaltung auf unterschiedliche Kompanderkennlinien
NZ192864A NZ192864A (en) 1979-03-29 1980-02-13 Compander characteristics changed by filter switching
AU55668/80A AU534566B2 (en) 1979-03-29 1980-02-19 Compander
CA000347592A CA1137879A (en) 1979-03-29 1980-03-13 Compander for changing over to different compander characteristics
AR280332A AR223516A1 (es) 1979-03-29 1980-03-17 Una disposicion de circuito para la compresion y/o expansion de nivel automatico con un canal de senales utiles
US06/131,846 US4306202A (en) 1979-03-29 1980-03-19 Compander
DD80219946A DD149744A1 (de) 1979-03-29 1980-03-26 Kompander zur umschaltung auf unterschiedliche kompanderkennlinien
JP3917680A JPS55134517A (en) 1979-03-29 1980-03-28 Compander circuit for switching various companding characteristics
ZA00801869A ZA801869B (en) 1979-03-29 1980-03-28 Compander for changing over to different compander characteristics
GB8010636A GB2045587B (en) 1979-03-29 1980-03-28 Compander with varying characteristics
BR8001929A BR8001929A (pt) 1979-03-29 1980-03-28 Circuito para a compressao e/ou expansao dinamica automatica
SG223/84A SG22384G (en) 1979-03-29 1984-03-12 Compander with varying characteristics
HK688/84A HK68884A (en) 1979-03-29 1984-09-06 Compander with varying characteristics
MY625/85A MY8500625A (en) 1979-03-29 1985-12-30 Compander with varying characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2912346A DE2912346C2 (de) 1979-03-29 1979-03-29 Kompander zur Umschaltung auf unterschiedliche Kompanderkennlinien

Publications (2)

Publication Number Publication Date
DE2912346A1 DE2912346A1 (de) 1980-10-16
DE2912346C2 true DE2912346C2 (de) 1982-08-19

Family

ID=6066727

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2912346A Expired DE2912346C2 (de) 1979-03-29 1979-03-29 Kompander zur Umschaltung auf unterschiedliche Kompanderkennlinien

Country Status (14)

Country Link
US (1) US4306202A (enExample)
JP (1) JPS55134517A (enExample)
AR (1) AR223516A1 (enExample)
AU (1) AU534566B2 (enExample)
BR (1) BR8001929A (enExample)
CA (1) CA1137879A (enExample)
DD (1) DD149744A1 (enExample)
DE (1) DE2912346C2 (enExample)
GB (1) GB2045587B (enExample)
HK (1) HK68884A (enExample)
MY (1) MY8500625A (enExample)
NZ (1) NZ192864A (enExample)
SG (1) SG22384G (enExample)
ZA (1) ZA801869B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT381422B (de) * 1980-11-27 1986-10-10 Sony Corp Pegelabtaststufe

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950584C2 (de) * 1979-12-15 1984-07-12 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung mit steuerbarem Widerstand
DE3047766A1 (de) * 1980-12-18 1982-07-15 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung mit veraenderbarem uebertragungsmass
US4760602A (en) * 1986-10-21 1988-07-26 Rca Licensing Corporation Variable preemphasis/deemphasis network
US5245229A (en) * 1992-02-28 1993-09-14 Media Vision Digitally controlled integrated circuit anti-clipping mixer
US7190292B2 (en) * 1999-11-29 2007-03-13 Bizjak Karl M Input level adjust system and method
US7206420B2 (en) * 1999-11-29 2007-04-17 Syfx Tekworks Softclip method and apparatus
US6870830B1 (en) 2000-11-30 2005-03-22 3Com Corporation System and method for performing messaging services using a data communications channel in a data network telephone system
JP4923939B2 (ja) * 2006-10-18 2012-04-25 ソニー株式会社 オーディオ再生装置
US8249271B2 (en) * 2007-01-23 2012-08-21 Karl M. Bizjak Noise analysis and extraction systems and methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735290A (en) * 1972-04-18 1973-05-22 Victor Company Of Japan Compressing and/or expanding system comprising fixed and variable frequency characteristic changing circuits
NO142768C (no) * 1974-01-26 1980-10-08 Licentia Gmbh Kopling for automatisk dynamikk-kompresjon eller -ekspansjon
GB1546672A (en) * 1975-07-03 1979-05-31 Sony Corp Signal compression and expansion circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT381422B (de) * 1980-11-27 1986-10-10 Sony Corp Pegelabtaststufe

Also Published As

Publication number Publication date
ZA801869B (en) 1981-04-29
JPS55134517A (en) 1980-10-20
US4306202A (en) 1981-12-15
NZ192864A (en) 1983-02-15
CA1137879A (en) 1982-12-21
MY8500625A (en) 1985-12-31
GB2045587A (en) 1980-10-29
BR8001929A (pt) 1980-11-25
AR223516A1 (es) 1981-08-31
GB2045587B (en) 1983-09-14
JPS6339125B2 (enExample) 1988-08-03
HK68884A (en) 1984-09-14
SG22384G (en) 1985-01-04
DE2912346A1 (de) 1980-10-16
AU5566880A (en) 1980-10-02
DD149744A1 (de) 1981-07-22
AU534566B2 (en) 1984-02-09

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Legal Events

Date Code Title Description
OAM Search report available
OC Search report available
OD Request for examination
D2 Grant after examination
8327 Change in the person/name/address of the patent owner

Owner name: TELEFUNKEN FERNSEH UND RUNDFUNK GMBH, 3000 HANNOVE

8339 Ceased/non-payment of the annual fee