CH656270A5 - Schaltungsanordnung zum modifizieren des dynamikbereichs. - Google Patents

Schaltungsanordnung zum modifizieren des dynamikbereichs. Download PDF

Info

Publication number
CH656270A5
CH656270A5 CH8224/81A CH822481A CH656270A5 CH 656270 A5 CH656270 A5 CH 656270A5 CH 8224/81 A CH8224/81 A CH 8224/81A CH 822481 A CH822481 A CH 822481A CH 656270 A5 CH656270 A5 CH 656270A5
Authority
CH
Switzerland
Prior art keywords
circuit
signal
circuits
path
input
Prior art date
Application number
CH8224/81A
Other languages
German (de)
English (en)
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
Application filed by Ray Milton Dolby filed Critical Ray Milton Dolby
Publication of CH656270A5 publication Critical patent/CH656270A5/de

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
    • H03G9/025—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
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
CH8224/81A 1981-12-01 1981-12-22 Schaltungsanordnung zum modifizieren des dynamikbereichs. CH656270A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32552981A 1981-12-01 1981-12-01

Publications (1)

Publication Number Publication Date
CH656270A5 true CH656270A5 (de) 1986-06-13

Family

ID=23268266

Family Applications (1)

Application Number Title Priority Date Filing Date
CH8224/81A CH656270A5 (de) 1981-12-01 1981-12-22 Schaltungsanordnung zum modifizieren des dynamikbereichs.

Country Status (10)

Country Link
KR (1) KR890000333B1 (fr)
BE (1) BE901907Q (fr)
CA (1) CA1177759A (fr)
CH (1) CH656270A5 (fr)
DE (2) DE3151213A1 (fr)
FR (1) FR2517495B1 (fr)
GB (1) GB2111356B (fr)
MY (1) MY8700931A (fr)
NL (1) NL192905C (fr)
SE (1) SE449282B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343225A1 (de) * 1983-11-30 1985-06-05 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Rundfunkempfangsgeraet
US4815068A (en) * 1987-08-07 1989-03-21 Dolby Ray Milton Audio encoder for use with more than one decoder each having different characteristics
US4882762A (en) * 1988-02-23 1989-11-21 Resound Corporation Multi-band programmable compression system
US4882761A (en) * 1988-02-23 1989-11-21 Resound Corporation Low voltage programmable compressor
US5278912A (en) * 1991-06-28 1994-01-11 Resound Corporation Multiband programmable compression system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US28426A (en) * 1860-05-22 Shortening tires
US3903485A (en) * 1968-01-10 1975-09-02 Ray Milton Dolby Compressors, expanders and noise reduction systems
US3846719A (en) * 1973-09-13 1974-11-05 Dolby Laboratories Inc Noise reduction systems
USRE28426E (en) * 1968-11-01 1975-05-20 Signal compressors and expanders
US3757254A (en) * 1970-06-05 1973-09-04 Victor Co Ltd N system noise reduction system and apparatus using a compression and expansio
GB1390341A (en) * 1971-03-12 1975-04-09 Dolby Laboratories Inc Signal compressors and expanders
US3875537A (en) * 1972-05-02 1975-04-01 Dolby Laboratories Inc Circuits for modifying the dynamic range of an input signal
GB1432763A (en) * 1972-05-02 1976-04-22 Dolby Laboratories Inc Compressors expanders and noise reduction systems
US3934190A (en) * 1972-09-15 1976-01-20 Dolby Laboratories, Inc. Signal compressors and expanders
US3909733A (en) * 1973-05-17 1975-09-30 Dolby Laboratories Inc Dynamic range modifying circuits utilizing variable negative resistance
JPS51127608A (en) * 1975-04-30 1976-11-06 Victor Co Of Japan Ltd Signal transmitting unit
JPS5552971A (en) * 1978-10-16 1980-04-17 Mitsubishi Electric Corp Simulator for radar indicator
BE889428A (fr) * 1980-06-30 1981-10-16 Dolby Ray Milton Dispositif destine a modifier la plage dynamique de signaux d'entree
US4498060A (en) * 1981-12-01 1985-02-05 Dolby Ray Milton Circuit arrangements for modifying dynamic range using series arranged bi-linear circuits

Also Published As

Publication number Publication date
BE901907Q (fr) 1985-07-01
NL192905C (nl) 1998-04-02
DE3151213A1 (de) 1983-06-09
KR890000333B1 (ko) 1989-03-14
GB2111356B (en) 1985-03-20
GB2111356A (en) 1983-06-29
NL192905B (nl) 1997-12-01
MY8700931A (en) 1987-12-31
FR2517495A1 (fr) 1983-06-03
CA1177759A (fr) 1984-11-13
SE449282B (sv) 1987-04-13
KR830008463A (ko) 1983-11-18
SE8107496L (sv) 1983-06-02
DE3153730C2 (fr) 1992-10-29
FR2517495B1 (fr) 1985-11-15
NL8105776A (nl) 1983-07-01
DE3151213C2 (fr) 1992-11-19

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Legal Events

Date Code Title Description
PL Patent ceased