BE901906Q - Perfectionnements a des montages permettant de modifier une gamme dynamique. - Google Patents

Perfectionnements a des montages permettant de modifier une gamme dynamique.

Info

Publication number
BE901906Q
BE901906Q BE0/214626A BE214626A BE901906Q BE 901906 Q BE901906 Q BE 901906Q BE 0/214626 A BE0/214626 A BE 0/214626A BE 214626 A BE214626 A BE 214626A BE 901906 Q BE901906 Q BE 901906Q
Authority
BE
Belgium
Prior art keywords
mountings
modifying
dynamic range
cut
reduce
Prior art date
Application number
BE0/214626A
Other languages
English (en)
Original Assignee
Dolby Ray Milton
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
Priority claimed from US06/325,530 external-priority patent/US4498055A/en
Application filed by Dolby Ray Milton filed Critical Dolby Ray Milton
Application granted granted Critical
Publication of BE901906Q publication Critical patent/BE901906Q/fr

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
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
    • 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

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

Abstract

Perfectionnements aux compresseurs, expanseurs et dispositifs de réduction de bruit. Ces perfectionnements réduisent la sensibilité de tels montages à une commande indésirable par des signaux situés à l'extérieur de la ou des bandes passantes (c'est-à-dire à des signaux de bande coupée) dans laquelle ou dans lesquelles les circuits sont actifs. Un circuit sensible ou niveau agit, en particulier par un traitement non linéaire, de manière à réduire la réponse du circuit à l'effet de composantes de signal de bande coupée aux niveaux de signal d'entrée élevés.
BE0/214626A 1981-12-01 1985-03-08 Perfectionnements a des montages permettant de modifier une gamme dynamique. BE901906Q (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/325,530 US4498055A (en) 1981-09-10 1981-12-01 Circuit arrangements for modifying dynamic range

Publications (1)

Publication Number Publication Date
BE901906Q true BE901906Q (fr) 1985-07-01

Family

ID=23268273

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/214626A BE901906Q (fr) 1981-12-01 1985-03-08 Perfectionnements a des montages permettant de modifier une gamme dynamique.

Country Status (15)

Country Link
KR (1) KR900000483B1 (fr)
BE (1) BE901906Q (fr)
CA (1) CA1188996A (fr)
CH (1) CH656996A5 (fr)
DE (1) DE3151137A1 (fr)
DK (1) DK575681A (fr)
ES (1) ES508394A0 (fr)
FR (1) FR2517496B1 (fr)
GB (1) GB2111355B (fr)
GR (1) GR77317B (fr)
IE (1) IE52495B1 (fr)
IT (1) IT1140402B (fr)
LU (1) LU83854A1 (fr)
NL (1) NL192860C (fr)
SE (1) SE449281B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922535A (en) * 1986-03-03 1990-05-01 Dolby Ray Milton Transient control aspects of circuit arrangements for altering the dynamic range of audio signals
CA1269138A (fr) * 1986-03-03 1990-05-15 Ray Milton Dolby Circuit attenateur a contre-reaction
KR960014115B1 (ko) * 1986-03-03 1996-10-14 밀톤 돌비 레이 부우트스트래핑(Bootstrapping)을 사용한 감쇄회로
GB2429779A (en) * 2005-09-01 2007-03-07 Geo Kingsbury Machine Tools Lt Testing components of drive trains

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1120541A (en) * 1965-08-11 1968-07-17 Dolby Ray Milton Improvements in noise reduction systems
US3665345A (en) * 1969-07-21 1972-05-23 Dolby Laboratories Inc Compressors and expanders for noise reduction systems
FI57502C (fi) * 1971-04-06 1980-08-11 Victor Company Of Japan Kompressions- och expansionssystem
US4101849A (en) * 1976-11-08 1978-07-18 Dbx, Inc. Adaptive filter
BE889428A (fr) * 1980-06-30 1981-10-16 Dolby Ray Milton Dispositif destine a modifier la plage dynamique de signaux d'entree

Also Published As

Publication number Publication date
KR830008462A (ko) 1983-11-18
GB2111355B (en) 1985-02-13
IE812951L (en) 1983-06-01
IT1140402B (it) 1986-09-24
CA1188996A (fr) 1985-06-18
ES8303848A1 (es) 1983-02-01
LU83854A1 (fr) 1982-05-07
KR900000483B1 (ko) 1990-01-30
ES508394A0 (es) 1983-02-01
DE3151137C2 (fr) 1993-04-01
IE52495B1 (en) 1987-11-25
FR2517496A1 (fr) 1983-06-03
NL8105775A (nl) 1983-07-01
CH656996A5 (de) 1986-07-31
NL192860B (nl) 1997-11-03
NL192860C (nl) 1998-03-04
GR77317B (fr) 1984-09-11
DK575681A (da) 1983-06-02
GB2111355A (en) 1983-06-29
SE449281B (sv) 1987-04-13
SE8107495L (sv) 1983-06-02
FR2517496B1 (fr) 1985-11-15
DE3151137A1 (de) 1983-07-14
IT8125877A0 (it) 1981-12-29

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: *RAY MILTON DOLBY

Effective date: 20050308

RE20 Patent expired

Owner name: *RAY MILTON DOLBY

Effective date: 20050308