ES2151278T3 - Metodo y aparato para control dinamico automatico de ganancia en caso de perdida de señal piloto. - Google Patents

Metodo y aparato para control dinamico automatico de ganancia en caso de perdida de señal piloto.

Info

Publication number
ES2151278T3
ES2151278T3 ES97926820T ES97926820T ES2151278T3 ES 2151278 T3 ES2151278 T3 ES 2151278T3 ES 97926820 T ES97926820 T ES 97926820T ES 97926820 T ES97926820 T ES 97926820T ES 2151278 T3 ES2151278 T3 ES 2151278T3
Authority
ES
Spain
Prior art keywords
control
gain
loss
level
case
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 - Lifetime
Application number
ES97926820T
Other languages
English (en)
Inventor
Stephan W Vogt
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.)
Scientific Atlanta LLC
Original Assignee
Scientific Atlanta LLC
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 Scientific Atlanta LLC filed Critical Scientific Atlanta LLC
Application granted granted Critical
Publication of ES2151278T3 publication Critical patent/ES2151278T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/005—Control by a pilot signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

EL CIRCUITO AUTOMATICO DE CONTROL DE GANANCIA DE LA INVENCION MEJORA LAS TECNICAS CONVENCIONALES QUE UTILIZAN UNA PORTADORA DE MANDO PARA CONTROLAR MEDIANTE MONITORIZACION (13) LA PRESENCIA DE LA PORTADORA DE MANDO. SI EL NIVEL DE PORTADORA DE MANDO ES UN NIVEL INDETECTABLE, SE CONMUTARA EL CONTROL DE LA SECCION DE CONTROL DE NIVEL (2) DEL CIRCUITO AUTOMATICO DE CONTROL DE GANANCIA AL AJUSTE TERMICO EQUIVALENTE POR MEDIO DE UN CONMUTADOR (24). EL CONMUTADOR (24) CONECTA LA SALIDA DE LA RED DE DETECCION DE TEMPERATURA (14) CON UN CIRCUITO DE EXCITACION DE BODE (23) QUE APROXIMA LA ATENUACION DE UN MEDIO DE TRANSMISION DADO A TRAVES DE LA TEMPERATURA. EL AJUSTE DE GANANCIA SE BASARA POR LO TANTO EN UNA APROXIMACION DE LAS PERDIDAS DEL CABLE QUE DEBERIAN PRODUCIRSE A LA TEMPERATURA DETECTADA DEL ALOJAMIENTO DEL AMPLIFICADOR. LA INVENCION SUMINISTRA UN AJUSTE DE GANANCIA DINAMICO, INCLUSO EN EL CASO DE PERDIDA DE LA SEÑAL PORTADORA DE MANDO.
ES97926820T 1996-05-31 1997-05-30 Metodo y aparato para control dinamico automatico de ganancia en caso de perdida de señal piloto. Expired - Lifetime ES2151278T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/651,651 US5742202A (en) 1996-05-31 1996-05-31 Method and apparatus for dynamic automatic gain control when pilot signal is lost

Publications (1)

Publication Number Publication Date
ES2151278T3 true ES2151278T3 (es) 2000-12-16

Family

ID=24613669

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97926820T Expired - Lifetime ES2151278T3 (es) 1996-05-31 1997-05-30 Metodo y aparato para control dinamico automatico de ganancia en caso de perdida de señal piloto.

Country Status (7)

Country Link
US (1) US5742202A (es)
EP (1) EP0903010B1 (es)
AU (1) AU3149597A (es)
BR (1) BR9709377A (es)
DE (1) DE69702520T2 (es)
ES (1) ES2151278T3 (es)
WO (1) WO1997045953A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7373272B2 (en) * 2006-07-26 2008-05-13 Honeywell International, Inc. Temperature compensated resonant transmission line sensor

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2269408A (en) * 1940-09-14 1942-01-06 Bell Telephone Labor Inc Gain control circuits
US2326871A (en) * 1942-01-28 1943-08-17 Bell Telephone Labor Inc Gain control
NL155159B (nl) * 1950-08-02 Philips Nv Schakelinrichting voor het onder bestuur van een stuurpuls verbinden van een bron van telecommunicatiesignalen met een belasting voor telecommunicatiesignalen.
GB693255A (en) * 1951-04-12 1953-06-24 Automatic Telephone & Elect Improvements in or relating to carrier current transmission systems
BE511541A (es) * 1951-05-21
BE511542A (es) * 1951-05-21
DE1078624B (de) * 1959-03-17 1960-03-31 Siemens Ag Pilotgesteuerte Pegelregelung fuer ein elektrisches Nachrichtenuebertragungssystem
US3328716A (en) * 1963-09-03 1967-06-27 Automatic Elect Lab Gain regulation circuit utilizing electrochemical memory means in variolosser control circuit
US3510793A (en) * 1964-02-26 1970-05-05 Int Standard Electric Corp Amplifier regulator employing an electrolytic variable resistance device
BE662030A (es) * 1964-05-04 1965-10-05
AU407352B2 (en) * 1965-12-29 1970-10-15 Improvements in automatic gain regulators
US3569869A (en) * 1968-06-21 1971-03-09 Walter O Sutton Jr Thermal compensation for a radio frequency transmission line
SE345180B (es) * 1971-06-21 1972-05-15 Ericsson Telefon Ab L M
DE2151794C3 (de) * 1971-10-18 1975-04-24 Standard Elektrik Lorenz Ag, 7000 Stuttgart Anordnung zur Unterdrückung von Regelschwingungen bei einem Trägerfrequenzsystem
GB1435563A (en) * 1972-05-19 1976-05-12 Siemens Ag Repeater amplifiers
US3781703A (en) * 1972-10-06 1973-12-25 Jerrold Electronics Corp Electronic amplifier with dual automatic slope control
US4030034A (en) * 1976-01-30 1977-06-14 General Electric Company Overdrive protection circuit for power line carrier systems and the like
FR2371827A1 (fr) * 1976-11-23 1978-06-16 Cit Alcatel Regulateur a action continue
FR2398344A1 (fr) * 1977-07-21 1979-02-16 Cit Alcatel Regulateur de niveau par onde pilote
US4746876A (en) * 1986-12-22 1988-05-24 Northern Telecom Limited Attenuator control arrangements
JPH05102872A (ja) * 1991-10-07 1993-04-23 Nippon Telegr & Teleph Corp <Ntt> 自動レベル調整回路
JP3052162B2 (ja) * 1991-10-24 2000-06-12 日本無線株式会社 屋外受信装置の異常監視装置

Also Published As

Publication number Publication date
WO1997045953A1 (en) 1997-12-04
DE69702520D1 (de) 2000-08-17
EP0903010B1 (en) 2000-07-12
EP0903010A4 (es) 1999-04-07
AU3149597A (en) 1998-01-05
EP0903010A1 (en) 1999-03-24
BR9709377A (pt) 1999-08-10
US5742202A (en) 1998-04-21
DE69702520T2 (de) 2001-04-19

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