CA2062776A1 - Commande automatique de gain numerique - Google Patents

Commande automatique de gain numerique

Info

Publication number
CA2062776A1
CA2062776A1 CA2062776A CA2062776A CA2062776A1 CA 2062776 A1 CA2062776 A1 CA 2062776A1 CA 2062776 A CA2062776 A CA 2062776A CA 2062776 A CA2062776 A CA 2062776A CA 2062776 A1 CA2062776 A1 CA 2062776A1
Authority
CA
Canada
Prior art keywords
gain control
automatic gain
signal
digital automatic
receiver
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
Application number
CA2062776A
Other languages
English (en)
Other versions
CA2062776C (fr
Inventor
John William Arens
David Edward Borth
James Frank Michael Kepler
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.)
Motorola Solutions Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2062776A1 publication Critical patent/CA2062776A1/fr
Application granted granted Critical
Publication of CA2062776C publication Critical patent/CA2062776C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers
    • 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
    • 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
    • H03G3/3078—Circuits generating control signals for digitally modulated 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
    • H04L27/18—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)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA002062776A 1990-04-27 1991-04-09 Commande automatique de gain numerique Expired - Fee Related CA2062776C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US51590090A 1990-04-27 1990-04-27
US515,900 1990-04-27

Publications (2)

Publication Number Publication Date
CA2062776A1 true CA2062776A1 (fr) 1991-10-28
CA2062776C CA2062776C (fr) 1996-06-04

Family

ID=24053240

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002062776A Expired - Fee Related CA2062776C (fr) 1990-04-27 1991-04-09 Commande automatique de gain numerique

Country Status (8)

Country Link
EP (1) EP0484476A4 (fr)
JP (1) JP2586214B2 (fr)
KR (1) KR950009559B1 (fr)
AU (1) AU635134B2 (fr)
BR (1) BR9105733A (fr)
CA (1) CA2062776C (fr)
FI (1) FI107089B (fr)
WO (1) WO1991017606A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509030A (en) * 1992-03-04 1996-04-16 Alcatel Network Systems, Inc. RF receiver AGC incorporating time domain equalizer circuity
JPH05327378A (ja) * 1992-05-22 1993-12-10 Toshiba Corp 無線通信装置の自動利得制御回路
DE4332161A1 (de) * 1993-09-22 1995-03-23 Thomson Brandt Gmbh Hochfrequenzempfänger
DK0987851T3 (da) * 1993-09-30 2003-09-08 Conexant Systems Inc Hjemmebase med flere antenner til digitale trådløse telefoner
JP3274055B2 (ja) * 1996-01-29 2002-04-15 沖電気工業株式会社 スペクトル拡散方式に従う受信機の飽和防止回路
CA2232754A1 (fr) * 1996-09-05 1998-03-12 Mitsubishi Denki Kabushiki Kaisha Procede de controle de gain et recepteur associe
KR100595839B1 (ko) * 1999-10-04 2006-07-05 에스케이 텔레콤주식회사 잡음신호를 이용한 이득 보상 장치 및 그 방법
SG93224A1 (en) * 2000-02-02 2002-12-17 Koninkl Philips Electronics Nv Measuring antenna signal strength with automatic gain control receiver
US7085255B2 (en) 2000-10-19 2006-08-01 Interdigital Technology Corporation Selectively activated AGC signal measurement unit
DK1458117T3 (da) * 2000-10-19 2006-10-30 Interdigital Tech Corp TDD modtager med seletiv aktiveret AGC-signalmåleenhed
US7024169B2 (en) * 2002-01-25 2006-04-04 Qualcomm Incorporated AMPS receiver using a zero-IF architecture
GB2400272B (en) * 2003-04-04 2006-08-02 Ubinetics Ltd Method of controlling the transmit power of a mobile communications device
US7817731B2 (en) 2003-09-22 2010-10-19 Infineon Technologies Ag Amplitude compression of signals in a multicarrier system
DE10343835B4 (de) * 2003-09-22 2005-07-28 Infineon Technologies Ag Amplitudenkomprimierung von Signalen in einem Mehrträgersystem
JP5407596B2 (ja) * 2009-06-30 2014-02-05 株式会社リコー 無線通信装置及び信号強度の測定方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227256A (en) * 1978-01-06 1980-10-07 Quadracast Systems, Inc. AM Broadcast tuner with automatic gain control
JPS5544225A (en) * 1978-09-25 1980-03-28 Nec Corp Time sharing gain adjustment circuit
US4191995A (en) * 1979-01-02 1980-03-04 Bell Telephone Laboratories, Incorporated Digital automatic gain control circuit
JPS5752741A (en) * 1980-09-12 1982-03-29 Toshiba Corp Liquid heating apparatus
FR2520952A1 (fr) 1982-02-03 1983-08-05 Trt Telecom Radio Electr Dispositif de controle automatique de gain (cag) a action rapide
JPS6027234A (ja) * 1983-07-22 1985-02-12 Nec Corp 受信機
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
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
US4696027A (en) * 1986-08-01 1987-09-22 Motorola, Inc. Handoff apparatus and method with interference reduction for a radio system
IE64560B1 (en) * 1988-11-30 1995-08-23 Motorola Inc Digital automatic gain control

Also Published As

Publication number Publication date
JP2586214B2 (ja) 1997-02-26
EP0484476A1 (fr) 1992-05-13
BR9105733A (pt) 1992-05-19
EP0484476A4 (en) 1993-02-24
WO1991017606A1 (fr) 1991-11-14
FI916141A0 (fi) 1991-12-27
JPH04507182A (ja) 1992-12-10
AU635134B2 (en) 1993-03-11
KR950009559B1 (ko) 1995-08-24
CA2062776C (fr) 1996-06-04
KR920702803A (ko) 1992-10-06
AU7689591A (en) 1991-11-27
FI107089B (fi) 2001-05-31

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Legal Events

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