JPS4914419U - - Google Patents

Info

Publication number
JPS4914419U
JPS4914419U JP1972056182U JP5618272U JPS4914419U JP S4914419 U JPS4914419 U JP S4914419U JP 1972056182 U JP1972056182 U JP 1972056182U JP 5618272 U JP5618272 U JP 5618272U JP S4914419 U JPS4914419 U JP S4914419U
Authority
JP
Japan
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.)
Granted
Application number
JP1972056182U
Other versions
JPS574492Y2 (ja
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 to JP1972056182U priority Critical patent/JPS574492Y2/ja
Application filed filed Critical
Priority to DE2323937A priority patent/DE2323937A1/de
Priority to FR7317232A priority patent/FR2198313B1/fr
Priority to SE7306697A priority patent/SE395579B/xx
Priority to GB2270273A priority patent/GB1412702A/en
Priority to CA171,002A priority patent/CA1003508A/en
Priority to US05/359,217 priority patent/US3946249A/en
Priority to IT49947/73A priority patent/IT985033B/it
Priority to AT422073A priority patent/AT347713B/de
Priority to NL7306700A priority patent/NL7306700A/xx
Priority to CH683073A priority patent/CH563692A5/xx
Priority to AU55682/73A priority patent/AU477728B2/en
Publication of JPS4914419U publication Critical patent/JPS4914419U/ja
Application granted granted Critical
Publication of JPS574492Y2 publication Critical patent/JPS574492Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0007—Circuits or methods for reducing noise, for correction of distortion, or for changing density of recorded information
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Networks Using Active Elements (AREA)
JP1972056182U 1972-05-13 1972-05-13 Expired JPS574492Y2 (ja)

Priority Applications (12)

Application Number Priority Date Filing Date Title
JP1972056182U JPS574492Y2 (ja) 1972-05-13 1972-05-13
FR7317232A FR2198313B1 (ja) 1972-05-13 1973-05-11
SE7306697A SE395579B (sv) 1972-05-13 1973-05-11 Elektrisk krets
GB2270273A GB1412702A (en) 1972-05-13 1973-05-11 Signal control circuit
CA171,002A CA1003508A (en) 1972-05-13 1973-05-11 Control circuit for noise elimination
US05/359,217 US3946249A (en) 1972-05-13 1973-05-11 Signal control circuit
DE2323937A DE2323937A1 (de) 1972-05-13 1973-05-11 Signalregelschaltung
IT49947/73A IT985033B (it) 1972-05-13 1973-05-14 Circuito di comando per un sistema di trasmissioni di segnali a riduzione di rumore
AT422073A AT347713B (de) 1972-05-13 1973-05-14 Signalregelschaltung
NL7306700A NL7306700A (ja) 1972-05-13 1973-05-14
CH683073A CH563692A5 (ja) 1972-05-13 1973-05-14
AU55682/73A AU477728B2 (en) 1972-05-13 1973-05-14 Signal control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972056182U JPS574492Y2 (ja) 1972-05-13 1972-05-13

Publications (2)

Publication Number Publication Date
JPS4914419U true JPS4914419U (ja) 1974-02-06
JPS574492Y2 JPS574492Y2 (ja) 1982-01-27

Family

ID=13019951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1972056182U Expired JPS574492Y2 (ja) 1972-05-13 1972-05-13

Country Status (11)

Country Link
US (1) US3946249A (ja)
JP (1) JPS574492Y2 (ja)
AT (1) AT347713B (ja)
CA (1) CA1003508A (ja)
CH (1) CH563692A5 (ja)
DE (1) DE2323937A1 (ja)
FR (1) FR2198313B1 (ja)
GB (1) GB1412702A (ja)
IT (1) IT985033B (ja)
NL (1) NL7306700A (ja)
SE (1) SE395579B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH021322U (ja) * 1988-06-13 1990-01-08

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5948447B2 (ja) * 1977-07-20 1984-11-27 ソニー株式会社 信号再生装置の利得補償回路
GB2002204B (en) * 1977-08-06 1982-01-27 Licentia Gmbh Dynamic compression or expansion circuits
JPS60214617A (ja) * 1984-04-11 1985-10-26 Hitachi Ltd フイルタ集積回路
US5023491A (en) * 1988-01-18 1991-06-11 Nec Corporation Filter circuit arrangements with automatic adjustment of cut-off frequencies
EP0583492B1 (en) * 1992-07-31 1998-11-25 Aphex Systems, Ltd. Audio signal bass frequency enhancement device
DE10124699C1 (de) * 2001-05-18 2002-12-19 Micronas Gmbh Schaltungsanordnung zur Verbesserung der Verständlichkeit von Sprache enthaltenden Audiosignalen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580020A (en) * 1948-01-06 1951-12-25 Jr John Hays Hammond Volume expander with timing control
US2678387A (en) * 1950-04-11 1954-05-11 Rca Corp Tone converter
US2972677A (en) * 1957-12-04 1961-02-21 Itt Interference detecting circuit
US3151299A (en) * 1962-02-08 1964-09-29 Dynamics Corp America Disabling circuit for controlling the output in accordance with frequency and amplitude of the input
US3289007A (en) * 1962-12-28 1966-11-29 Bell Telephone Labor Inc Signal rectifier utilizing opposite conductivity transistors
US3238383A (en) * 1963-05-31 1966-03-01 Barnes Eng Co Ripple-free synchronous demodulator circuit
NL6507228A (ja) * 1964-06-10 1965-12-13
DE1220483B (de) * 1964-11-30 1966-07-07 Siemens Ag Schaltungsanordnung fuer geregelte Verstaerker
CH501338A (fr) * 1968-12-26 1970-12-31 Kudelski Stefan Compresseur de volume d'un signal électrique
DE1915511A1 (de) * 1969-03-26 1970-10-08 Graetz Kg Automatische Aussteuerungsregelung fuer Tonbandgeraete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH021322U (ja) * 1988-06-13 1990-01-08

Also Published As

Publication number Publication date
AU5568273A (en) 1974-11-14
IT985033B (it) 1974-11-30
JPS574492Y2 (ja) 1982-01-27
ATA422073A (de) 1978-05-15
FR2198313B1 (ja) 1976-03-05
DE2323937A1 (de) 1973-11-22
CA1003508A (en) 1977-01-11
CH563692A5 (ja) 1975-06-30
SE395579B (sv) 1977-08-15
GB1412702A (en) 1975-11-05
US3946249A (en) 1976-03-23
DE2323937C2 (ja) 1987-06-11
NL7306700A (ja) 1973-11-15
AT347713B (de) 1979-01-10
FR2198313A1 (ja) 1974-03-29

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