ES8308457A1 - "perfeccionamientos introducidos en un expansor de senales electricas". - Google Patents

"perfeccionamientos introducidos en un expansor de senales electricas".

Info

Publication number
ES8308457A1
ES8308457A1 ES508964A ES508964A ES8308457A1 ES 8308457 A1 ES8308457 A1 ES 8308457A1 ES 508964 A ES508964 A ES 508964A ES 508964 A ES508964 A ES 508964A ES 8308457 A1 ES8308457 A1 ES 8308457A1
Authority
ES
Spain
Prior art keywords
signal
input
control signal
entry
expander
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
ES508964A
Other languages
English (en)
Other versions
ES508964A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Corp
Original Assignee
RCA Corp
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 US06/229,743 external-priority patent/US4377788A/en
Priority claimed from US06/258,432 external-priority patent/US4398157A/en
Application filed by RCA Corp filed Critical RCA Corp
Publication of ES508964A0 publication Critical patent/ES508964A0/es
Publication of ES8308457A1 publication Critical patent/ES8308457A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

EXPANSOR DE SEÑALES ELECTRICAS. INCLUYE MEDIOS DE ENTRADA (105) PARA RECIBIR UNA SEÑAL DE ENTRADA QUE HAYA DE SER EXPANDIDA (S1), MEDIOS DETECTORES SENSIBLES A LA SEÑAL DE ENTRADA PARA PRODUCIR UNA PRIMERA SEÑAL DE CONTROL QUE TIENE UNA AMPLITUD QUE VARIA EN FUNCION DE LA ENVOLVENTE DE LA SEÑAL DE ENTRADA, Y UNOS MEDIOS DE GANANCIA VARIABLE (14). ESTOS ULTIMOS TIENEN UNA PRIMERA ENTRADA (16) ACOPLADA PARA RECIBIR LA SEÑAL DE ENTRADA, UNA SEGUNDA ENTRADA (18) PARA RECIBIR UNA SEÑAL DE CONTROL DE EXPANSION (S3) Y UNA SALIDA (20) PARA PROPORCIONAR UNA SEÑAL DE SALIDA EXPANDIDA (S2). UNOS MEDIOS DE FILTRO ADAPTABLE (40), SENSIBLES A LA PRIMERA SEÑAL DE CONTROL, PRODUCEN Y SUMINISTRAN LA SEÑAL DE CONTROL DE EXPANSION (S3) A LA SEGUNDA ENTRADA DE LOS MEDIOS DE GANANCIA VARIABLE.
ES508964A 1981-01-29 1982-01-22 "perfeccionamientos introducidos en un expansor de senales electricas". Expired ES8308457A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US22951881A 1981-01-29 1981-01-29
US06/229,743 US4377788A (en) 1981-01-29 1981-01-29 Signal expander
US06/258,432 US4398157A (en) 1981-01-29 1981-04-28 Signal expander/compressor with adaptive control circuit

Publications (2)

Publication Number Publication Date
ES508964A0 ES508964A0 (es) 1983-06-16
ES8308457A1 true ES8308457A1 (es) 1983-06-16

Family

ID=27397963

Family Applications (1)

Application Number Title Priority Date Filing Date
ES508964A Expired ES8308457A1 (es) 1981-01-29 1982-01-22 "perfeccionamientos introducidos en un expansor de senales electricas".

Country Status (11)

Country Link
KR (1) KR830009703A (es)
AU (1) AU544439B2 (es)
DE (1) DE3202951C2 (es)
DK (1) DK38682A (es)
ES (1) ES8308457A1 (es)
FR (1) FR2498850A1 (es)
GB (1) GB2094594B (es)
IT (1) IT1140449B (es)
NL (1) NL8200321A (es)
PT (1) PT74105B (es)
SE (1) SE8200367L (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8701365D0 (en) * 1987-01-22 1987-02-25 Thomas L D Signal level control
SE9801235L (sv) * 1998-04-08 1999-10-09 Anders Gingsjoe Anordning och metod för reducering av transienter
DE10122922A1 (de) * 2001-05-11 2002-11-14 Mgp Instr Gmbh Verfahren und Filtereinrichtung zur Fluktuatiuonsunterdrückung bei Meßdaten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1044004A (en) * 1962-06-07 1966-09-28 Emi Ltd Improvements in or relating to circuits for compressing or expanding the amplitude range of an input signal
US3732371A (en) * 1971-05-10 1973-05-08 Richard S Burwen Wide dynamic range noise masking compandor
DE2306152A1 (de) * 1973-02-08 1974-08-15 Grundig Emv Automatische verstaerkungsregelung
US3980964A (en) * 1974-05-20 1976-09-14 Grodinsky Robert M Noise reduction circuit
US4024463A (en) * 1976-05-03 1977-05-17 Rockwell International Corporation A.C. amplifier automatic gain control fast attack circuit
DE2803751C2 (de) * 1978-01-28 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur automatischen Dynamik- Kompression oder -Expansion
US4220929A (en) * 1978-12-26 1980-09-02 Dbx, Inc. Signal expander
GB2040616B (en) * 1979-01-17 1983-01-26 Racal Dana Instr Ltd Electrical circuit arrangements

Also Published As

Publication number Publication date
AU7975882A (en) 1982-08-05
FR2498850A1 (fr) 1982-07-30
GB2094594B (en) 1984-10-24
DK38682A (da) 1982-07-30
DE3202951C2 (de) 1984-08-09
ES508964A0 (es) 1983-06-16
IT1140449B (it) 1986-09-24
AU544439B2 (en) 1985-05-30
NL8200321A (nl) 1982-08-16
SE8200367A0 (sv) 1982-07-30
GB2094594A (en) 1982-09-15
IT8125956A0 (it) 1981-12-31
PT74105B (en) 1983-06-15
KR830009703A (ko) 1983-12-22
DE3202951A1 (de) 1982-08-26
SE8200367L (sv) 1982-07-30
PT74105A (en) 1982-01-01

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