KR890000333B1 - 다이나믹 레인지(Dynamic range)변경 회로 장치 - Google Patents

다이나믹 레인지(Dynamic range)변경 회로 장치 Download PDF

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Publication number
KR890000333B1
KR890000333B1 KR1019810005017A KR810005017A KR890000333B1 KR 890000333 B1 KR890000333 B1 KR 890000333B1 KR 1019810005017 A KR1019810005017 A KR 1019810005017A KR 810005017 A KR810005017 A KR 810005017A KR 890000333 B1 KR890000333 B1 KR 890000333B1
Authority
KR
South Korea
Prior art keywords
circuit
circuit means
gain
level
circuits
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
KR1019810005017A
Other languages
English (en)
Korean (ko)
Other versions
KR830008463A (ko
Inventor
밀톤 돌비 레이
Original Assignee
밀톤 돌비 레이
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 밀톤 돌비 레이 filed Critical 밀톤 돌비 레이
Publication of KR830008463A publication Critical patent/KR830008463A/ko
Application granted granted Critical
Publication of KR890000333B1 publication Critical patent/KR890000333B1/ko
Expired legal-status Critical Current

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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)
KR1019810005017A 1981-12-01 1981-12-19 다이나믹 레인지(Dynamic range)변경 회로 장치 Expired KR890000333B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32552981A 1981-12-01 1981-12-01
US325,529 1981-12-01
US325529 1981-12-01

Publications (2)

Publication Number Publication Date
KR830008463A KR830008463A (ko) 1983-11-18
KR890000333B1 true KR890000333B1 (ko) 1989-03-14

Family

ID=23268266

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810005017A Expired KR890000333B1 (ko) 1981-12-01 1981-12-19 다이나믹 레인지(Dynamic range)변경 회로 장치

Country Status (10)

Country Link
KR (1) KR890000333B1 (enrdf_load_stackoverflow)
BE (1) BE901907Q (enrdf_load_stackoverflow)
CA (1) CA1177759A (enrdf_load_stackoverflow)
CH (1) CH656270A5 (enrdf_load_stackoverflow)
DE (2) DE3153730C2 (enrdf_load_stackoverflow)
FR (1) FR2517495B1 (enrdf_load_stackoverflow)
GB (1) GB2111356B (enrdf_load_stackoverflow)
MY (1) MY8700931A (enrdf_load_stackoverflow)
NL (1) NL192905C (enrdf_load_stackoverflow)
SE (1) SE449282B (enrdf_load_stackoverflow)

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
US4882761A (en) * 1988-02-23 1989-11-21 Resound Corporation Low voltage programmable compressor
US4882762A (en) * 1988-02-23 1989-11-21 Resound Corporation Multi-band programmable compression system
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
US3846719A (en) * 1973-09-13 1974-11-05 Dolby Laboratories Inc Noise reduction systems
US3903485A (en) * 1968-01-10 1975-09-02 Ray Milton Dolby Compressors, expanders and 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
GB1432763A (en) * 1972-05-02 1976-04-22 Dolby Laboratories Inc Compressors expanders and noise reduction systems
US3875537A (en) * 1972-05-02 1975-04-01 Dolby Laboratories Inc Circuits for modifying the dynamic range of an input signal
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
BE889427A (fr) * 1980-06-30 1981-10-16 Dolby Ray Milton Circuit de suppression des effets de modulation dans des compresseurs, des expanseurs et des dispositifs de reduction des bruits
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
NL192905B (nl) 1997-12-01
CH656270A5 (de) 1986-06-13
SE8107496L (sv) 1983-06-02
KR830008463A (ko) 1983-11-18
SE449282B (sv) 1987-04-13
DE3151213C2 (enrdf_load_stackoverflow) 1992-11-19
GB2111356B (en) 1985-03-20
DE3153730C2 (enrdf_load_stackoverflow) 1992-10-29
NL192905C (nl) 1998-04-02
FR2517495A1 (fr) 1983-06-03
DE3151213A1 (de) 1983-06-09
CA1177759A (en) 1984-11-13
GB2111356A (en) 1983-06-29
FR2517495B1 (fr) 1985-11-15
NL8105776A (nl) 1983-07-01
MY8700931A (en) 1987-12-31

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Patent event date: 19881221

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