WO2003001689A3 - Systeme d'amplification d'un signal hertzien et decodeur de signaux de television comportant un tel systeme - Google Patents
Systeme d'amplification d'un signal hertzien et decodeur de signaux de television comportant un tel systeme Download PDFInfo
- Publication number
- WO2003001689A3 WO2003001689A3 PCT/FR2002/001759 FR0201759W WO03001689A3 WO 2003001689 A3 WO2003001689 A3 WO 2003001689A3 FR 0201759 W FR0201759 W FR 0201759W WO 03001689 A3 WO03001689 A3 WO 03001689A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless signal
- gain control
- amplification
- control signal
- analogue
- Prior art date
Links
- 230000003321 amplification Effects 0.000 title abstract 4
- 238000003199 nucleic acid amplification method Methods 0.000 title abstract 4
- 238000005070 sampling Methods 0.000 abstract 1
Classifications
-
- 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
- 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
- H03G3/20—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)
Abstract
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002304493A AU2002304493A1 (en) | 2001-06-21 | 2002-05-24 | Wireless signal amplification system and a television signal decoder comprising one such system |
| KR1020037016572A KR100753589B1 (ko) | 2001-06-21 | 2002-05-24 | 무선 신호 증폭 시스템 및 하나의 이러한 시스템을포함하는 텔레비전 신호 디코더 |
| 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 |
| US10/481,014 US7054604B2 (en) | 2001-06-21 | 2002-05-24 | Wireless signal amplification system and a television signal decoder comprising one such system |
Applications Claiming Priority (2)
| 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 |
| FR01/08206 | 2001-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003001689A2 WO2003001689A2 (fr) | 2003-01-03 |
| WO2003001689A3 true WO2003001689A3 (fr) | 2004-02-12 |
Family
ID=8864619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
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 (5)
| 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 |
| EP1750367B1 (fr) * | 2005-08-04 | 2009-07-15 | Dibcom | Méthode et dispositif de commande automatique de gain avec scintillement réduit |
| US7583755B2 (en) | 2005-08-12 | 2009-09-01 | Ati Technologies, Inc. | Systems, methods, and apparatus for mitigation of nonlinear distortion |
| USD571822S1 (en) * | 2006-09-07 | 2008-06-24 | Savant Systems, Llc | Multimedia controller |
| EP1923993A1 (fr) | 2006-11-08 | 2008-05-21 | Dibcom | Méthode et dispositif de digitalisation d'un signal analogique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0413311A2 (fr) * | 1989-08-16 | 1991-02-20 | Hitachi, Ltd. | Récepteur radio |
| EP0657997A1 (fr) * | 1993-12-07 | 1995-06-14 | Thomson-Csf | Procédé de commande automatique de gain dans un récepteur radio numérique et récepteur mettant en oeuvre ce procédé |
| EP0814568A1 (fr) * | 1996-06-21 | 1997-12-29 | Lucent Technologies Inc. | Techniques pour l'améliorisation de la performance d'intermodulation d'une téléphone sans fil |
| EP1020991A1 (fr) * | 1999-01-11 | 2000-07-19 | Alcatel | Récepteur radioélectrique ou électrique et son utilisation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2001
- 2001-06-21 FR FR0108206A patent/FR2826525B1/fr not_active Expired - Lifetime
-
2002
- 2002-05-24 EP EP02732884A patent/EP1421683A2/fr not_active Withdrawn
- 2002-05-24 CN CNB028123271A patent/CN1258261C/zh not_active Expired - Fee Related
- 2002-05-24 US US10/481,014 patent/US7054604B2/en not_active Expired - Lifetime
- 2002-05-24 KR KR1020037016572A patent/KR100753589B1/ko not_active Expired - Lifetime
- 2002-05-24 AU AU2002304493A patent/AU2002304493A1/en not_active Abandoned
- 2002-05-24 WO PCT/FR2002/001759 patent/WO2003001689A2/fr not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0413311A2 (fr) * | 1989-08-16 | 1991-02-20 | Hitachi, Ltd. | Récepteur radio |
| EP0657997A1 (fr) * | 1993-12-07 | 1995-06-14 | Thomson-Csf | Procédé de commande automatique de gain dans un récepteur radio numérique et récepteur mettant en oeuvre ce procédé |
| EP0814568A1 (fr) * | 1996-06-21 | 1997-12-29 | Lucent Technologies Inc. | Techniques pour l'améliorisation de la performance d'intermodulation d'une téléphone sans fil |
| EP1020991A1 (fr) * | 1999-01-11 | 2000-07-19 | Alcatel | Récepteur radioélectrique ou électrique et son utilisation |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003001689A2 (fr) | 2003-01-03 |
| FR2826525B1 (fr) | 2003-10-03 |
| CN1543706A (zh) | 2004-11-03 |
| CN1258261C (zh) | 2006-05-31 |
| EP1421683A2 (fr) | 2004-05-26 |
| KR20040010745A (ko) | 2004-01-31 |
| AU2002304493A1 (en) | 2003-01-08 |
| US7054604B2 (en) | 2006-05-30 |
| KR100753589B1 (ko) | 2007-08-30 |
| US20040171362A1 (en) | 2004-09-02 |
| FR2826525A1 (fr) | 2002-12-27 |
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