LU83854A1 - Perfectionnements a des montages permettant de modifier une gamme dynamique - Google Patents

Perfectionnements a des montages permettant de modifier une gamme dynamique Download PDF

Info

Publication number
LU83854A1
LU83854A1 LU83854A LU83854A LU83854A1 LU 83854 A1 LU83854 A1 LU 83854A1 LU 83854 A LU83854 A LU 83854A LU 83854 A LU83854 A LU 83854A LU 83854 A1 LU83854 A1 LU 83854A1
Authority
LU
Luxembourg
Prior art keywords
signal
circuit
band
signals
frequency
Prior art date
Application number
LU83854A
Other languages
English (en)
French (fr)
Inventor
Ray M Dolby
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
Publication of LU83854A1 publication Critical patent/LU83854A1/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)
LU83854A 1981-12-01 1981-12-24 Perfectionnements a des montages permettant de modifier une gamme dynamique LU83854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/325,530 US4498055A (en) 1981-09-10 1981-12-01 Circuit arrangements for modifying dynamic range
US32553081 1981-12-01

Publications (1)

Publication Number Publication Date
LU83854A1 true LU83854A1 (fr) 1982-05-07

Family

ID=23268273

Family Applications (1)

Application Number Title Priority Date Filing Date
LU83854A LU83854A1 (fr) 1981-12-01 1981-12-24 Perfectionnements a des montages permettant de modifier une gamme dynamique

Country Status (15)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0236122A2 (de) * 1986-03-03 1987-09-09 Ray Milton Dolby Abschwächungsschaltung mit Bootstrapping
EP0236076A2 (de) * 1986-03-03 1987-09-09 Ray Milton Dolby Schaltungen zum Ändern des Dynamikbereichs von Audiosignalen
EP0421559A2 (de) * 1986-03-03 1991-04-10 Ray Milton Dolby Schaltungsanordnung zum Abändern des Dynamikbereiches eines Signals

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
BE753495A (fr) * 1969-07-21 1970-12-16 Dolby Laboratories Inc Filtres limiteurs perfectionnes pour systemes attenuateurs de bruit. (
GB1367002A (en) * 1971-04-06 1974-09-18 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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0236122A2 (de) * 1986-03-03 1987-09-09 Ray Milton Dolby Abschwächungsschaltung mit Bootstrapping
EP0236076A2 (de) * 1986-03-03 1987-09-09 Ray Milton Dolby Schaltungen zum Ändern des Dynamikbereichs von Audiosignalen
EP0236076A3 (en) * 1986-03-03 1989-02-08 Ray Milton Dolby Circuits for altering the dynamic range of audio signals
EP0236122A3 (en) * 1986-03-03 1989-03-01 Ray Milton Dolby Attenuator circuit employing bootstrapping
EP0421559A2 (de) * 1986-03-03 1991-04-10 Ray Milton Dolby Schaltungsanordnung zum Abändern des Dynamikbereiches eines Signals
EP0421559A3 (en) * 1986-03-03 1991-06-12 Ray Milton Dolby Device for modifying the dynamic range of an input signal

Also Published As

Publication number Publication date
IT1140402B (it) 1986-09-24
CA1188996A (en) 1985-06-18
ES8303848A1 (es) 1983-02-01
GB2111355A (en) 1983-06-29
SE8107495L (sv) 1983-06-02
KR900000483B1 (ko) 1990-01-30
IT8125877A0 (it) 1981-12-29
ES508394A0 (es) 1983-02-01
DE3151137C2 (de) 1993-04-01
BE901906Q (fr) 1985-07-01
IE52495B1 (en) 1987-11-25
DE3151137A1 (de) 1983-07-14
FR2517496A1 (fr) 1983-06-03
NL192860B (nl) 1997-11-03
GB2111355B (en) 1985-02-13
SE449281B (sv) 1987-04-13
FR2517496B1 (fr) 1985-11-15
IE812951L (en) 1983-06-01
NL8105775A (nl) 1983-07-01
CH656996A5 (de) 1986-07-31
DK575681A (da) 1983-06-02
KR830008462A (ko) 1983-11-18
GR77317B (de) 1984-09-11
NL192860C (nl) 1998-03-04

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