FR2517496B1 - 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
FR2517496B1
FR2517496B1 FR8124314A FR8124314A FR2517496B1 FR 2517496 B1 FR2517496 B1 FR 2517496B1 FR 8124314 A FR8124314 A FR 8124314A FR 8124314 A FR8124314 A FR 8124314A FR 2517496 B1 FR2517496 B1 FR 2517496B1
Authority
FR
France
Prior art keywords
mountings
modifying
dynamic range
dynamic
range
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
FR8124314A
Other languages
English (en)
French (fr)
Other versions
FR2517496A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2517496A1 publication Critical patent/FR2517496A1/fr
Application granted granted Critical
Publication of FR2517496B1 publication Critical patent/FR2517496B1/fr
Expired 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
    • H03G9/12—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
FR8124314A 1981-12-01 1981-12-28 Perfectionnements a des montages permettant de modifier une gamme dynamique Expired FR2517496B1 (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 (2)

Publication Number Publication Date
FR2517496A1 FR2517496A1 (fr) 1983-06-03
FR2517496B1 true FR2517496B1 (fr) 1985-11-15

Family

ID=23268273

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8124314A Expired FR2517496B1 (fr) 1981-12-01 1981-12-28 Perfectionnements a des montages permettant de modifier une gamme dynamique

Country Status (15)

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

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 (en) * 1986-03-03 1990-05-15 Ray Milton Dolby Attenuator circuit employing bootstrapping
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
US3795876A (en) * 1971-04-06 1974-03-05 Victor Company Of Japan Compression and/or expansion system and circuit
US4101849A (en) * 1976-11-08 1978-07-18 Dbx, Inc. Adaptive filter
BE889426A (fr) * 1980-06-30 1981-10-16 Dolby Ray Milton Circuit de reduction des effets de la surcharge d'un support d'enregistrement ou de transmission de signaux

Also Published As

Publication number Publication date
CA1188996A (en) 1985-06-18
FR2517496A1 (fr) 1983-06-03
CH656996A5 (de) 1986-07-31
SE449281B (sv) 1987-04-13
GB2111355B (en) 1985-02-13
SE8107495L (sv) 1983-06-02
GR77317B (OSRAM) 1984-09-11
IT1140402B (it) 1986-09-24
BE901906Q (fr) 1985-07-01
NL192860B (nl) 1997-11-03
LU83854A1 (fr) 1982-05-07
KR900000483B1 (ko) 1990-01-30
NL8105775A (nl) 1983-07-01
GB2111355A (en) 1983-06-29
ES8303848A1 (es) 1983-02-01
NL192860C (nl) 1998-03-04
DE3151137C2 (OSRAM) 1993-04-01
KR830008462A (ko) 1983-11-18
IE52495B1 (en) 1987-11-25
DE3151137A1 (de) 1983-07-14
IE812951L (en) 1983-06-01
DK575681A (da) 1983-06-02
ES508394A0 (es) 1983-02-01
IT8125877A0 (it) 1981-12-29

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