MX173758B - Aparato y metodo de control de ganancia automatico - Google Patents
Aparato y metodo de control de ganancia automaticoInfo
- Publication number
- MX173758B MX173758B MX9101261A MX9101261A MX173758B MX 173758 B MX173758 B MX 173758B MX 9101261 A MX9101261 A MX 9101261A MX 9101261 A MX9101261 A MX 9101261A MX 173758 B MX173758 B MX 173758B
- Authority
- MX
- Mexico
- Prior art keywords
- control device
- gain control
- automatic gain
- automatic
- gain
- Prior art date
Links
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
- H03G3/3078—Circuits generating control signals for digitally modulated 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
-
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/589,946 US5083304A (en) | 1990-09-28 | 1990-09-28 | Automatic gain control apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
MX173758B true MX173758B (es) | 1994-03-25 |
Family
ID=24360229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9101261A MX173758B (es) | 1990-09-28 | 1991-09-25 | Aparato y metodo de control de ganancia automatico |
Country Status (4)
Country | Link |
---|---|
US (1) | US5083304A (es) |
CA (1) | CA2051982C (es) |
GB (1) | GB2250874B (es) |
MX (1) | MX173758B (es) |
Families Citing this family (59)
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US5276685A (en) * | 1988-11-30 | 1994-01-04 | Motorola, Inc. | Digital automatic gain control |
US5287556A (en) * | 1990-09-28 | 1994-02-15 | Motorola, Inc. | Interference reduction using an adaptive receiver filter, signal strength, and BER sensing |
US5263196A (en) * | 1990-11-19 | 1993-11-16 | Motorola, Inc. | Method and apparatus for compensation of imbalance in zero-if downconverters |
US5230099A (en) * | 1991-01-24 | 1993-07-20 | Rockwell International Corporation | System for controlling phase and gain errors in an i/q direct conversion receiver |
US5267322A (en) * | 1991-12-13 | 1993-11-30 | Digital Sound Corporation | Digital automatic gain control with lookahead, adaptive noise floor sensing, and decay boost initialization |
US5235424A (en) * | 1992-02-06 | 1993-08-10 | General Electric Company | Automatic gain control system for a high definition television signal receiver |
US5509030A (en) * | 1992-03-04 | 1996-04-16 | Alcatel Network Systems, Inc. | RF receiver AGC incorporating time domain equalizer circuity |
US5379039A (en) * | 1993-07-26 | 1995-01-03 | Motorola Inc. | Method and improved apparatus for stabilizing analog-to-digital circuits |
US5701585A (en) * | 1994-12-12 | 1997-12-23 | Telefonaktiebolaget Lm Ericsson | Mobile assisted handoff |
JP3367807B2 (ja) * | 1995-10-27 | 2003-01-20 | 株式会社東芝 | 光ディスク再生装置 |
KR100189370B1 (ko) * | 1996-08-23 | 1999-06-01 | 전주범 | 직각 위상 편이 복조기의 자동 이득 제어장치 |
US6018556A (en) * | 1996-11-21 | 2000-01-25 | Dsp Group, Inc. | Programmable loop filter for carrier recovery in a radio receiver |
US5901173A (en) | 1996-12-09 | 1999-05-04 | Raytheon Company | Noise Estimator |
US6115589A (en) * | 1997-04-29 | 2000-09-05 | Motorola, Inc. | Speech-operated noise attenuation device (SONAD) control system method and apparatus |
US6148048A (en) * | 1997-09-26 | 2000-11-14 | Cirrus Logic, Inc. | Receive path implementation for an intermediate frequency transceiver |
DE19805547C1 (de) * | 1998-02-11 | 1999-09-09 | Siemens Ag | Digitaler Empfänger mit automatischer Verstärkungsregelung |
US6019879A (en) * | 1998-03-19 | 2000-02-01 | Teledyne Industries, Inc. | Electrochemical gas sensor |
US7092675B2 (en) * | 1998-05-29 | 2006-08-15 | Silicon Laboratories | Apparatus and methods for generating radio frequencies in communication circuitry using multiple control signals |
US6993314B2 (en) | 1998-05-29 | 2006-01-31 | Silicon Laboratories Inc. | Apparatus for generating multiple radio frequencies in communication circuitry and associated methods |
US6804497B2 (en) * | 2001-01-12 | 2004-10-12 | Silicon Laboratories, Inc. | Partitioned radio-frequency apparatus and associated methods |
US7221921B2 (en) * | 1998-05-29 | 2007-05-22 | Silicon Laboratories | Partitioning of radio-frequency apparatus |
US7035607B2 (en) * | 1998-05-29 | 2006-04-25 | Silicon Laboratories Inc. | Systems and methods for providing an adjustable reference signal to RF circuitry |
US7024221B2 (en) * | 2001-01-12 | 2006-04-04 | Silicon Laboratories Inc. | Notch filter for DC offset reduction in radio-frequency apparatus and associated methods |
US7242912B2 (en) * | 1998-05-29 | 2007-07-10 | Silicon Laboratories Inc. | Partitioning of radio-frequency apparatus |
US7228109B2 (en) * | 2001-01-12 | 2007-06-05 | Silicon Laboratories Inc. | DC offset reduction in radio-frequency apparatus and associated methods |
US6970717B2 (en) * | 2001-01-12 | 2005-11-29 | Silicon Laboratories Inc. | Digital architecture for radio-frequency apparatus and associated methods |
US6060950A (en) * | 1998-06-05 | 2000-05-09 | Nokia Mobile Phones Limited | Control of a variable gain amplifier with a delta sigma modulator D/A converter |
US6603825B1 (en) | 1999-01-12 | 2003-08-05 | Motorola Inc. | Automatic gain control for a receiver and method therefor |
SE0000309D0 (sv) * | 2000-01-31 | 2000-01-31 | Ericsson Telefon Ab L M | Calibrating method and apparatus in a telecommunication system |
US6321073B1 (en) * | 2000-01-31 | 2001-11-20 | Motorola, Inc. | Radiotelephone receiver and method with improved dynamic range and DC offset correction |
US6903617B2 (en) | 2000-05-25 | 2005-06-07 | Silicon Laboratories Inc. | Method and apparatus for synthesizing high-frequency signals for wireless communications |
DE10050330A1 (de) * | 2000-10-11 | 2002-04-25 | Infineon Technologies Ag | Signalstärkeausgleich für stark zeitvariante Mobilfunkkanäle |
US7158574B2 (en) * | 2001-01-12 | 2007-01-02 | Silicon Laboratories Inc. | Digital interface in radio-frequency apparatus and associated methods |
US7177610B2 (en) * | 2001-01-12 | 2007-02-13 | Silicon Laboratories Inc. | Calibrated low-noise current and voltage references and associated methods |
US20030232613A1 (en) * | 2001-01-12 | 2003-12-18 | Kerth Donald A. | Quadrature signal generation in radio-frequency apparatus and associated methods |
US7138858B2 (en) | 2001-01-12 | 2006-11-21 | Silicon Laboratories, Inc. | Apparatus and methods for output buffer circuitry with constant output power in radio-frequency circuitry |
US7035611B2 (en) * | 2001-01-12 | 2006-04-25 | Silicon Laboratories Inc. | Apparatus and method for front-end circuitry in radio-frequency apparatus |
US7031683B2 (en) * | 2001-01-12 | 2006-04-18 | Silicon Laboratories Inc. | Apparatus and methods for calibrating signal-processing circuitry |
US20030027537A1 (en) * | 2001-08-01 | 2003-02-06 | Koji Kimura | Providing automatic gain control stability |
US6968166B2 (en) * | 2002-01-22 | 2005-11-22 | George L. Yang | Method and apparatus of a fast digital automatic gain control circuit |
US7024169B2 (en) * | 2002-01-25 | 2006-04-04 | Qualcomm Incorporated | AMPS receiver using a zero-IF architecture |
EP1486079B1 (en) * | 2002-03-15 | 2015-12-30 | Silicon Laboratories Inc. | Radio-frequency apparatus |
US7660344B2 (en) * | 2002-06-28 | 2010-02-09 | Bwa Technology, Inc. | AGC fine-tuning by the adaptive time domain equalizer |
US6873833B2 (en) * | 2003-03-27 | 2005-03-29 | Interdigital Technology Corporation | Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system |
TWI260896B (en) * | 2003-04-04 | 2006-08-21 | Mediatek Inc | Wireless communication system with the device that detect transmission mode of communication signal |
DE602004027046D1 (de) * | 2003-07-14 | 2010-06-17 | Ericsson Telefon Ab L M | Verfahren und vorrichtung zur automatischen verstärkungsregelung eines drahtlosen empfängers |
US7386074B1 (en) | 2003-10-06 | 2008-06-10 | Redpine Signals, Inc. | Digital automatic gain control method and apparatus |
JP2005167519A (ja) * | 2003-12-01 | 2005-06-23 | Sony Ericsson Mobilecommunications Japan Inc | 携帯通信端末装置及び利得可変回路 |
KR100635011B1 (ko) * | 2004-11-16 | 2006-10-16 | 한국전자통신연구원 | 부채널수 변화에 따른 이득값 조절이 가능한직교주파수분할다중접속 시스템의 송신장치 및 그장치에서의 데이터 송신방법 |
US7664607B2 (en) | 2005-10-04 | 2010-02-16 | Teledyne Technologies Incorporated | Pre-calibrated gas sensor |
US7936850B2 (en) * | 2007-01-17 | 2011-05-03 | Broadcom Corporation | Method and apparatus for providing a digital automatic gain control (AGC) |
KR100881670B1 (ko) * | 2007-02-02 | 2009-02-06 | 삼성전자주식회사 | 데이터 수신 장치의 아날로그 블록의 제어 장치 및 방법 |
US8164484B2 (en) * | 2007-10-03 | 2012-04-24 | University Of Southern California | Detection and classification of running vehicles based on acoustic signatures |
US8077036B2 (en) * | 2007-10-03 | 2011-12-13 | University Of Southern California | Systems and methods for security breach detection |
KR100932267B1 (ko) * | 2007-11-29 | 2009-12-16 | 한국전자통신연구원 | 수신 신호 이득 제어 방법 및 무선 신호 수신 장치 |
US20100260011A1 (en) * | 2009-04-08 | 2010-10-14 | University Of Southern California | Cadence analysis of temporal gait patterns for seismic discrimination |
US8615476B2 (en) * | 2009-04-15 | 2013-12-24 | University Of Southern California | Protecting military perimeters from approaching human and vehicle using biologically realistic neural network |
US20110172954A1 (en) * | 2009-04-20 | 2011-07-14 | University Of Southern California | Fence intrusion detection |
US8412360B2 (en) * | 2010-08-23 | 2013-04-02 | Hitachi Asia Ltd. | Method and system for robust attenuation of mechanical resonances using a multi-rate low pass filter |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3936599A (en) * | 1973-06-18 | 1976-02-03 | General Electric Company | Automatic gain control system |
US4479253A (en) * | 1982-01-18 | 1984-10-23 | Rca Corporation | Phaselock receiver with input signal measuring capability |
US4623934A (en) * | 1983-11-16 | 1986-11-18 | Rockwell International Corporation | AGC update apparatus and method of using same |
JPS60145713A (ja) * | 1984-01-10 | 1985-08-01 | Fujitsu Ltd | 自動利得制御方式 |
US4551688A (en) * | 1984-05-23 | 1985-11-05 | Rockwell International Corporation | Delay compensated automatic gain control |
US4625240A (en) * | 1984-07-25 | 1986-11-25 | Eeco, Inc. | Adaptive automatic gain control |
JPS6173416A (ja) * | 1984-09-19 | 1986-04-15 | Nec Corp | 自動周波数制御・自動利得制御回路 |
FR2576472B1 (fr) * | 1985-01-22 | 1988-02-12 | Alcatel Thomson Faisceaux | Procede et dispositif de commande automatique de gain d'un recepteur en acces multiple a repartition temporelle |
JPS61170150A (ja) * | 1985-01-24 | 1986-07-31 | Nec Corp | 時分割多元接続方式における基準局の従局制御装置 |
US4631489A (en) * | 1985-07-05 | 1986-12-23 | Motorola, Inc. | FM signal magnitude quantizer and demodulator compatible with digital signal processing |
US4747065A (en) * | 1985-10-11 | 1988-05-24 | International Business Machines Corporation | Automatic gain control in a digital signal processor |
DK163699C (da) * | 1986-02-11 | 1992-08-17 | Poul Richter Joergensen | Fremgangsmaade til automatisk forstaerkningsstyring af et signal samt et kredsloeb til udoevelse af fremgangsmaaden |
JPS62216511A (ja) * | 1986-03-18 | 1987-09-24 | Nec Corp | 自動利得制御装置 |
US4792991A (en) * | 1986-04-03 | 1988-12-20 | Motorola, Inc. | FM receiver having improved audio quality in response to Rayleigh faded received signals |
SG28380G (en) * | 1986-04-03 | 1995-09-01 | Motorola Inc | FM receiver with noise suppression during rayleigh faded received signals |
US4785418A (en) * | 1986-08-29 | 1988-11-15 | International Business Machines Corporation | Proportional automatic gain control |
US4807167A (en) * | 1987-03-18 | 1989-02-21 | General Electric Company | Rapid method of digital automatic gain control |
-
1990
- 1990-09-28 US US07/589,946 patent/US5083304A/en not_active Expired - Lifetime
-
1991
- 1991-09-20 CA CA002051982A patent/CA2051982C/en not_active Expired - Fee Related
- 1991-09-23 GB GB9120246A patent/GB2250874B/en not_active Expired - Fee Related
- 1991-09-25 MX MX9101261A patent/MX173758B/es not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB9120246D0 (en) | 1991-11-06 |
CA2051982A1 (en) | 1992-03-29 |
CA2051982C (en) | 1996-03-12 |
US5083304A (en) | 1992-01-21 |
GB2250874A (en) | 1992-06-17 |
GB2250874B (en) | 1994-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration | ||
MM | Annulment or lapse due to non-payment of fees |