SE449281B - Kretsanordning for modifiering av en insignals dynamikomrade - Google Patents

Kretsanordning for modifiering av en insignals dynamikomrade

Info

Publication number
SE449281B
SE449281B SE8107495A SE8107495A SE449281B SE 449281 B SE449281 B SE 449281B SE 8107495 A SE8107495 A SE 8107495A SE 8107495 A SE8107495 A SE 8107495A SE 449281 B SE449281 B SE 449281B
Authority
SE
Sweden
Prior art keywords
signal
circuit
frequency
signals
control
Prior art date
Application number
SE8107495A
Other languages
English (en)
Swedish (sv)
Other versions
SE8107495L (sv
Inventor
Ray Milton Dolby
Original Assignee
Ray Milton Dolby
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 Ray Milton Dolby filed Critical Ray Milton Dolby
Publication of SE8107495L publication Critical patent/SE8107495L/
Publication of SE449281B publication Critical patent/SE449281B/sv

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)
SE8107495A 1981-12-01 1981-12-15 Kretsanordning for modifiering av en insignals dynamikomrade SE449281B (sv)

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
SE8107495L SE8107495L (sv) 1983-06-02
SE449281B true SE449281B (sv) 1987-04-13

Family

ID=23268273

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8107495A SE449281B (sv) 1981-12-01 1981-12-15 Kretsanordning for modifiering av en insignals dynamikomrade

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)

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
EP0421559B1 (de) * 1986-03-03 1998-01-14 Ray Milton Dolby Schaltungsanordnung zum Abändern des Dynamikbereiches eines Signals
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

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
FR2517496B1 (fr) 1985-11-15
IE812951L (en) 1983-06-01
NL8105775A (nl) 1983-07-01
LU83854A1 (fr) 1982-05-07
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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