ES2056743A2 - Metodo y dispositivo de control, automatico de ganancia en receptores de radio. - Google Patents
Metodo y dispositivo de control, automatico de ganancia en receptores de radio.Info
- Publication number
- ES2056743A2 ES2056743A2 ES09300446A ES9300446A ES2056743A2 ES 2056743 A2 ES2056743 A2 ES 2056743A2 ES 09300446 A ES09300446 A ES 09300446A ES 9300446 A ES9300446 A ES 9300446A ES 2056743 A2 ES2056743 A2 ES 2056743A2
- Authority
- ES
- Spain
- Prior art keywords
- time domain
- domain equalizer
- circuity
- receiver
- feedback
- 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.)
- Granted
Links
- 238000001914 filtration Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—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
- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/08—Amplitude regulation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/3809—Amplitude regulation arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
METODO Y DISPOSITIVO DE CONTROL, AUTOMATICO DE GANANCIA EN RECEPTORES DE RADIO. LAS SEÑALES DE REALIMENTACION A UTILIZAR EN EL CONTROL DE UN AMPLIFICADOR DE GANANCIA VARIABLE (52) QUE FORMA PARTE DE UN RECEPTOR DE RADIO SE OBTIENEN DE LAS SEÑALES EXISTENTES EN EL CIRCUITO DE CONTROL AUTOMATICO DE GANANCIA INCORPORADO EN UN ECUALIZADOR EN EL DOMINIO DEL TIEMPO DE UN RECEPTOR, DE FORMA QUE LOS CIRCUITOS DE FILTRADO PASO BANDA Y DE DETECCION DE SEÑAL DE REALIMENTACION, JUNTO CON EL DISPOSITIVO DE LINEALIZACION DEL CIRCUITO DETECTOR REQUERIDO EN LOS ESQUEMAS DE REALIMENTACION DEL ESTADO DE LA TECNICA, PUEDAN SER ELIMINADOS DEL ESQUEMA GENERAL. EL DISPOSITIVO RESULTANTE PROPORCIONA UN NIVEL CONSTANTE A LA ENTRADA DEL CONVERSOR ANALOGICO-DIGITAL INCORPORADO Y EL LAZO RESULTANTE SE ADAPTA A LOS CAMBIOS DE LOS ANCHOS DE BANDA EN BANDA BASE Y EN RADIOFRECUENCIA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/846,496 US5509030A (en) | 1992-03-04 | 1992-03-04 | RF receiver AGC incorporating time domain equalizer circuity |
Publications (3)
Publication Number | Publication Date |
---|---|
ES2056743A2 true ES2056743A2 (es) | 1994-10-01 |
ES2056743R ES2056743R (es) | 1996-11-16 |
ES2056743B1 ES2056743B1 (es) | 1997-07-01 |
Family
ID=25298108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09300446A Expired - Fee Related ES2056743B1 (es) | 1992-03-04 | 1993-03-04 | Metodo y dispositivo de control, automatico de ganancia en receptores de radio. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5509030A (es) |
JP (1) | JPH0613823A (es) |
CA (1) | CA2082998C (es) |
DE (1) | DE4306551A1 (es) |
ES (1) | ES2056743B1 (es) |
GB (1) | GB2264829A (es) |
IT (1) | IT1264347B1 (es) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6104442A (en) * | 1994-06-28 | 2000-08-15 | Samsung Electronics Co., Ltd. | Radio receiver for receiving both VSB and QAM digital HDTV signals |
US20040213358A1 (en) * | 1994-05-23 | 2004-10-28 | Samsung Electronics Co., Ltd. | Radio receiver for receiving both VSB and QAM digital HDTV signals |
US5565932A (en) * | 1994-11-08 | 1996-10-15 | Zenith Electronics Corp. | AGC system with pilot using digital data reference |
US5722063A (en) * | 1994-12-16 | 1998-02-24 | Qualcomm Incorporated | Method and apparatus for increasing receiver immunity to interference |
JP3130794B2 (ja) * | 1996-05-27 | 2001-01-31 | 日本電気株式会社 | 復調器 |
KR100193848B1 (ko) * | 1996-10-05 | 1999-06-15 | 윤종용 | 대역확산통신기에 있어서 수신신호 이득 자동제어장치 및 방법 |
JP3024755B2 (ja) * | 1998-06-24 | 2000-03-21 | 日本電気株式会社 | Agc回路及びその制御方法 |
JP3214463B2 (ja) * | 1998-10-21 | 2001-10-02 | 日本電気株式会社 | 無線通信装置 |
US6229998B1 (en) | 1999-04-12 | 2001-05-08 | Qualcomm Inc. | Method and system for detecting in-band jammers in a spread spectrum wireless base station |
KR100821821B1 (ko) * | 2000-12-20 | 2008-04-11 | 텔레폰악티에볼라겟엘엠에릭슨(펍) | 간섭 분류 방법 및 장치 |
DE10141597B4 (de) * | 2001-08-24 | 2017-11-09 | Lantiq Deutschland Gmbh | Verfahren zum Rekonstruieren von über eine Übertragungsstrecke übertragenen Daten in einem Empfänger und entsprechende Vorrichtung |
US8027657B2 (en) * | 2001-10-26 | 2011-09-27 | Texas Instruments Incorporated | Sampling mixer with asynchronous clock and signal domains |
US20040002312A1 (en) * | 2002-06-27 | 2004-01-01 | Liang Li | Baseband receiver and method of using same |
US7660344B2 (en) * | 2002-06-28 | 2010-02-09 | Bwa Technology, Inc. | AGC fine-tuning by the adaptive time domain equalizer |
US6768441B2 (en) | 2002-08-20 | 2004-07-27 | Telefonaktiebolaget L.M. Ericsson | Methods of receiving communications signals including a plurality of digital filters having different bandwidths and related receivers |
JP2007195075A (ja) * | 2006-01-20 | 2007-08-02 | Fujitsu Ltd | 復調回路および復調方法 |
KR102494784B1 (ko) | 2015-07-28 | 2023-02-01 | 삼성전자주식회사 | 수신기 및 그 동작 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004877A1 (en) * | 1986-02-11 | 1987-08-13 | Joergensen Poul Richter | A method and circuit for automatic gain control of a signal |
WO1991017606A1 (en) * | 1990-04-27 | 1991-11-14 | Motorola, Inc. | Digital automatic gain control |
US5083304A (en) * | 1990-09-28 | 1992-01-21 | Motorola, Inc. | Automatic gain control apparatus and method |
US5142695A (en) * | 1991-03-21 | 1992-08-25 | Novatel Communications, Ltd. | Cellular radio-telephone receiver employing improved technique for generating an indication of received signal strength |
GB2261128A (en) * | 1991-10-09 | 1993-05-05 | Matsushita Electric Ind Co Ltd | Intermittent operation receiver with signal level dependant gain control |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3577167D1 (de) * | 1985-08-28 | 1990-05-17 | Ibm | Verfahren zur schnellen verstaerkungseinstellung in einem modemempfaenger. |
US4665519A (en) * | 1985-11-04 | 1987-05-12 | Electronic Systems Technology, Inc. | Wireless computer modem |
JP2797712B2 (ja) * | 1990-08-24 | 1998-09-17 | モトローラ・インコーポレイテッド | デュアル・モード自動利得制御 |
-
1992
- 1992-03-04 US US07/846,496 patent/US5509030A/en not_active Expired - Lifetime
- 1992-11-16 CA CA002082998A patent/CA2082998C/en not_active Expired - Fee Related
-
1993
- 1993-02-26 IT IT93MI000380A patent/IT1264347B1/it active IP Right Grant
- 1993-03-01 GB GB9304123A patent/GB2264829A/en not_active Withdrawn
- 1993-03-03 DE DE4306551A patent/DE4306551A1/de not_active Withdrawn
- 1993-03-04 ES ES09300446A patent/ES2056743B1/es not_active Expired - Fee Related
- 1993-03-04 JP JP5044158A patent/JPH0613823A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004877A1 (en) * | 1986-02-11 | 1987-08-13 | Joergensen Poul Richter | A method and circuit for automatic gain control of a signal |
WO1991017606A1 (en) * | 1990-04-27 | 1991-11-14 | Motorola, Inc. | Digital automatic gain control |
US5083304A (en) * | 1990-09-28 | 1992-01-21 | Motorola, Inc. | Automatic gain control apparatus and method |
US5142695A (en) * | 1991-03-21 | 1992-08-25 | Novatel Communications, Ltd. | Cellular radio-telephone receiver employing improved technique for generating an indication of received signal strength |
GB2261128A (en) * | 1991-10-09 | 1993-05-05 | Matsushita Electric Ind Co Ltd | Intermittent operation receiver with signal level dependant gain control |
Also Published As
Publication number | Publication date |
---|---|
GB9304123D0 (en) | 1993-04-14 |
US5509030A (en) | 1996-04-16 |
JPH0613823A (ja) | 1994-01-21 |
DE4306551A1 (es) | 1993-09-09 |
CA2082998C (en) | 2000-05-23 |
ITMI930380A1 (it) | 1994-08-26 |
CA2082998A1 (en) | 1993-09-05 |
ES2056743B1 (es) | 1997-07-01 |
IT1264347B1 (it) | 1996-09-23 |
GB2264829A (en) | 1993-09-08 |
ITMI930380A0 (it) | 1993-02-26 |
ES2056743R (es) | 1996-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2056743A2 (es) | Metodo y dispositivo de control, automatico de ganancia en receptores de radio. | |
US5451948A (en) | Apparatus and method for combining analog and digital automatic gain control in receivers with digital signal processing | |
US4494551A (en) | Alterable frequency response electrocardiographic amplifier | |
CA2063364A1 (en) | Cellular radio-telephone receiver employing improved technique for generating an indication of received signal strength | |
CA2233692A1 (en) | Linearized digital automatic gain control | |
ES2005104A6 (es) | Metodo con su circuito correspondiente para control de ganancia automatico de una senal analogica electrica | |
GB2250403A (en) | Method of preventing suppresion of sensitivity of a receiver and method of preventing radio interference | |
WO2002067420A3 (en) | Direct conversion receiver architecture | |
ES8401694A1 (es) | Perfeccionamientos en un circuito de selectividad mejorado para radiorreceptores modulados en amplitud. | |
US5694082A (en) | Circuit arrangement for determining intermodulation products | |
US4262363A (en) | Signal seeking stop circuit for amplitude modulated receiver | |
GB1525897A (en) | Blanker inhibit circuit in a radio receiver | |
KR101660708B1 (ko) | 출력 변화 조정 가능한 자동레벨보상 회로 | |
GB1528284A (en) | Radio receivers | |
WO2002039733A3 (en) | Frequency agile adaptive automatic gain control circuit | |
CA2058482A1 (en) | Baseband signal processing circuit for a radio communication apparatus | |
JPS56110355A (en) | Radio communication system | |
HU9200375D0 (en) | Connection arrangement for automatic controlling of amplifiers | |
JPS5733836A (en) | Automatic noise reducing circuit | |
FR2403702A1 (fr) | Circuit recepteur a reglage automatique de gain | |
JPS5491165A (en) | Agc system | |
JPS6223629A (ja) | 受信機 | |
JPS5769982A (en) | Audio reception circuit for television receiver | |
JPS56137721A (en) | Receiving circuit for amplitude-modulated wave | |
JPS57160229A (en) | Intermediate frequency amplifier with narrow band squelch detecting circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19941001 Kind code of ref document: R Effective date: 19941001 |
|
FD2A | Announcement of lapse in spain |
Effective date: 20141120 |