MX173758B - Aparato y metodo de control de ganancia automatico - Google Patents

Aparato y metodo de control de ganancia automatico

Info

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
Application number
MX9101261A
Other languages
English (en)
Inventor
Stephen V Cahill
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of MX173758B publication Critical patent/MX173758B/es

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)
MX9101261A 1990-09-28 1991-09-25 Aparato y metodo de control de ganancia automatico MX173758B (es)

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)

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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
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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

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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
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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
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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

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

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FG Grant or registration
MM Annulment or lapse due to non-payment of fees