FR2826525B1 - Systeme d'amplification d'un signal hertzien de decodeur de signaux de television comportant un tel systeme - Google Patents

Systeme d'amplification d'un signal hertzien de decodeur de signaux de television comportant un tel systeme

Info

Publication number
FR2826525B1
FR2826525B1 FR0108206A FR0108206A FR2826525B1 FR 2826525 B1 FR2826525 B1 FR 2826525B1 FR 0108206 A FR0108206 A FR 0108206A FR 0108206 A FR0108206 A FR 0108206A FR 2826525 B1 FR2826525 B1 FR 2826525B1
Authority
FR
France
Prior art keywords
signal
amplifying
decoder
television
radio
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
FR0108206A
Other languages
English (en)
Other versions
FR2826525A1 (fr
Inventor
Yannick Levy
Khaled Maalej
Emmanuel Hamman
Amaury Demol
Julien Schmitt
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.)
Faurecia Clarion Electronics Europe SAS
Original Assignee
DiBcom SA
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 FR0108206A priority Critical patent/FR2826525B1/fr
Application filed by DiBcom SA filed Critical DiBcom SA
Priority to US10/481,014 priority patent/US7054604B2/en
Priority to EP02732884A priority patent/EP1421683A2/fr
Priority to PCT/FR2002/001759 priority patent/WO2003001689A2/fr
Priority to KR1020037016572A priority patent/KR100753589B1/ko
Priority to AU2002304493A priority patent/AU2002304493A1/en
Priority to CNB028123271A priority patent/CN1258261C/zh
Publication of FR2826525A1 publication Critical patent/FR2826525A1/fr
Application granted granted Critical
Publication of FR2826525B1 publication Critical patent/FR2826525B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • 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
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
    • H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
    • H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
    • H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuits Of Receivers In General (AREA)
  • Amplifiers (AREA)
FR0108206A 2001-06-21 2001-06-21 Systeme d'amplification d'un signal hertzien de decodeur de signaux de television comportant un tel systeme Expired - Lifetime FR2826525B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR0108206A FR2826525B1 (fr) 2001-06-21 2001-06-21 Systeme d'amplification d'un signal hertzien de decodeur de signaux de television comportant un tel systeme
EP02732884A EP1421683A2 (fr) 2001-06-21 2002-05-24 Systeme d'amplification d'un signal hertzien et decodeur de signaux de television comportant un tel systeme
PCT/FR2002/001759 WO2003001689A2 (fr) 2001-06-21 2002-05-24 Systeme d'amplification d'un signal hertzien et decodeur de signaux de television comportant un tel systeme
KR1020037016572A KR100753589B1 (ko) 2001-06-21 2002-05-24 무선 신호 증폭 시스템 및 하나의 이러한 시스템을포함하는 텔레비전 신호 디코더
US10/481,014 US7054604B2 (en) 2001-06-21 2002-05-24 Wireless signal amplification system and a television signal decoder comprising one such system
AU2002304493A AU2002304493A1 (en) 2001-06-21 2002-05-24 Wireless signal amplification system and a television signal decoder comprising one such system
CNB028123271A CN1258261C (zh) 2001-06-21 2002-05-24 无线信号放大系统和包括所述系统的电视信号译码器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0108206A FR2826525B1 (fr) 2001-06-21 2001-06-21 Systeme d'amplification d'un signal hertzien de decodeur de signaux de television comportant un tel systeme

Publications (2)

Publication Number Publication Date
FR2826525A1 FR2826525A1 (fr) 2002-12-27
FR2826525B1 true FR2826525B1 (fr) 2003-10-03

Family

ID=8864619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0108206A Expired - Lifetime FR2826525B1 (fr) 2001-06-21 2001-06-21 Systeme d'amplification d'un signal hertzien de decodeur de signaux de television comportant un tel systeme

Country Status (7)

Country Link
US (1) US7054604B2 (fr)
EP (1) EP1421683A2 (fr)
KR (1) KR100753589B1 (fr)
CN (1) CN1258261C (fr)
AU (1) AU2002304493A1 (fr)
FR (1) FR2826525B1 (fr)
WO (1) WO2003001689A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863419A1 (fr) * 2003-12-09 2005-06-10 Thales Sa Controle automatique du gain d'un recepteur numerique pour reception de signaux a enveloppes discontinues
DE602005015438D1 (de) * 2005-08-04 2009-08-27 Dibcom Verfahren und Vorrichtung zur automatischen Verstärkungsregelung mit geringem Jitter
US7583755B2 (en) 2005-08-12 2009-09-01 Ati Technologies, Inc. Systems, methods, and apparatus for mitigation of nonlinear distortion
EP1923993A1 (fr) 2006-11-08 2008-05-21 Dibcom Méthode et dispositif de digitalisation d'un signal analogique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0413311A3 (en) * 1989-08-16 1991-10-30 Hitachi, Ltd. A radio receiver and a radio receiver using a direct conversion
FR2713846B1 (fr) * 1993-12-07 1996-01-05 Thomson Csf Procédé de commande automatique de gain dans un récepteur radio numérique et récepteur mettant en Óoeuvre ce procédé.
US5907798A (en) * 1996-06-21 1999-05-25 Lucent Technologies Inc. Wireless telephone intermodulation performance enhancement techniques
FR2788391A1 (fr) * 1999-01-11 2000-07-13 Cit Alcatel Recepteur radioelectrique ou electrique et son utilisation
DE60132002T2 (de) * 2000-10-10 2008-12-04 Nxp B.V. Verstärkerschaltung mit hoher linearität
US6687491B2 (en) * 2002-01-18 2004-02-03 Sony Corporation Direct conversion of low power high linearity receiver
KR100480646B1 (ko) * 2003-04-17 2005-03-31 삼성전자주식회사 잡음이 많은 다중 경로 채널에 적응하여 신호를안정적으로 포착 추적하는 자동 이득 제어기, 이를 구비한디지털 텔레비전 수신 장치 및 그 방법

Also Published As

Publication number Publication date
AU2002304493A1 (en) 2003-01-08
WO2003001689A3 (fr) 2004-02-12
CN1258261C (zh) 2006-05-31
WO2003001689A2 (fr) 2003-01-03
US7054604B2 (en) 2006-05-30
EP1421683A2 (fr) 2004-05-26
US20040171362A1 (en) 2004-09-02
CN1543706A (zh) 2004-11-03
KR100753589B1 (ko) 2007-08-30
KR20040010745A (ko) 2004-01-31
FR2826525A1 (fr) 2002-12-27

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Owner name: PARROT, FR

Effective date: 20130515

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Effective date: 20151201

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