DE4290924C2 - Vorrichtung und Verfahren zur automatischen Verstärkungssteuerung in einem Funkempfänger - Google Patents

Vorrichtung und Verfahren zur automatischen Verstärkungssteuerung in einem Funkempfänger

Info

Publication number
DE4290924C2
DE4290924C2 DE4290924A DE4290924A DE4290924C2 DE 4290924 C2 DE4290924 C2 DE 4290924C2 DE 4290924 A DE4290924 A DE 4290924A DE 4290924 A DE4290924 A DE 4290924A DE 4290924 C2 DE4290924 C2 DE 4290924C2
Authority
DE
Germany
Prior art keywords
radio receiver
signal
gain
control signal
amplifier
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.)
Expired - Fee Related
Application number
DE4290924A
Other languages
German (de)
English (en)
Other versions
DE4290924T1 (enExample
Inventor
Daniel C Feldt
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
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
Application granted granted Critical
Publication of DE4290924C2 publication Critical patent/DE4290924C2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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)
  • Circuits Of Receivers In General (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
DE4290924A 1991-04-01 1992-03-06 Vorrichtung und Verfahren zur automatischen Verstärkungssteuerung in einem Funkempfänger Expired - Fee Related DE4290924C2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/678,920 US5204977A (en) 1991-04-01 1991-04-01 Apparatus and method of automatic gain control in a receiver
PCT/US1992/001682 WO1992017944A1 (en) 1991-04-01 1992-03-06 Apparatus and method of automatic gain control in a receiver

Publications (1)

Publication Number Publication Date
DE4290924C2 true DE4290924C2 (de) 1997-11-20

Family

ID=24724865

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4290924A Expired - Fee Related DE4290924C2 (de) 1991-04-01 1992-03-06 Vorrichtung und Verfahren zur automatischen Verstärkungssteuerung in einem Funkempfänger
DE4290924T Pending DE4290924T1 (enExample) 1991-04-01 1992-03-06

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE4290924T Pending DE4290924T1 (enExample) 1991-04-01 1992-03-06

Country Status (8)

Country Link
US (1) US5204977A (enExample)
JP (1) JP2808891B2 (enExample)
BR (1) BR9204766A (enExample)
CA (1) CA2077440C (enExample)
DE (2) DE4290924C2 (enExample)
GB (1) GB2261335B (enExample)
MX (1) MX9201488A (enExample)
WO (1) WO1992017944A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5301364A (en) * 1988-11-30 1994-04-05 Motorola, Inc. Method and apparatus for digital automatic gain control in a receiver
JPH056943U (ja) * 1991-02-28 1993-01-29 株式会社東芝 ゲインコントロール回路
JP2730347B2 (ja) * 1991-10-09 1998-03-25 松下電器産業株式会社 受信機の自動利得制御方法
TW228043B (enExample) * 1992-06-26 1994-08-11 Philips Electronics Nv
JP3365428B2 (ja) 1992-12-09 2003-01-14 ソニー株式会社 高周波パワーアンプのバイアス制御回路
FI108765B (fi) * 1993-09-28 2002-03-15 Nokia Corp Menetelmä ja laitteisto solukkoradiojärjestelmän tukiaseman vastaanottimen vahvistusvirheen mittaamiseksi ja kentänvoimakkuusmittauksen tarkentamiseksi
DE4341937A1 (de) * 1993-12-09 1995-06-14 Philips Patentverwaltung Elektrisches Gerät mit einer Anordnung zur Kompensation eines Gleichspannungsanteils
US5465406A (en) * 1994-09-06 1995-11-07 Ford Motor Company Automatic gain control overshoot limiter for AM receiver
CA2200978A1 (en) * 1994-10-19 1996-05-09 Mordechai Ritz Sectorized communication system and methods useful therefor
US5913152A (en) * 1995-12-29 1999-06-15 Solid Electronics Labs FM composite signal processor
US5867063A (en) * 1996-12-05 1999-02-02 Motorola, Inc. Gain distribution circuit
US6240100B1 (en) * 1997-07-31 2001-05-29 Motorola, Inc. Cellular TDMA base station receiver with dynamic DC offset correction
CN1277753A (zh) * 1998-09-21 2000-12-20 皇家菲利浦电子有限公司 放大器
US6603825B1 (en) 1999-01-12 2003-08-05 Motorola Inc. Automatic gain control for a receiver and method therefor
US6584090B1 (en) * 1999-04-23 2003-06-24 Skyworks Solutions, Inc. System and process for shared functional block CDMA and GSM communication transceivers
JP2002033629A (ja) 2000-07-14 2002-01-31 Nec Corp 利得可変増幅回路、およびそれを備えた端末装置
JP2004201044A (ja) * 2002-12-19 2004-07-15 Sony Ericsson Mobilecommunications Japan Inc 携帯通信端末装置及び利得可変回路
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
RU2342775C1 (ru) * 2007-05-29 2008-12-27 Открытое акционерное общество "Концерн "Созвездие" Узкополосное радиоприемное устройство

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110163A1 (de) * 1970-03-04 1971-09-23 Fujitsu Ltd Anordnung zur selbsttätigen Verstärkungsregelung
US4757502A (en) * 1985-01-22 1988-07-12 Alcatel Thomson Faisceaux Hertizens Automatic gain control method and circuit for a time division multiple access receiver
EP0403247A2 (en) * 1989-06-13 1990-12-19 Nec Corporation AGC device for producing a gain controlled and d.c. offset removed signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3559088A (en) * 1969-08-07 1971-01-26 Motorola Inc Transistor amplifier with automatic gain control
US4574251A (en) * 1984-10-01 1986-03-04 Motorola, Inc. Logarithmic digitally variable gain controlled amplifier
JPH0691481B2 (ja) * 1987-08-18 1994-11-14 日本電気株式会社 Ａｇｃ回路
JP2680366B2 (ja) * 1988-08-25 1997-11-19 株式会社東芝 自動利得制御増幅回路
US4933986A (en) * 1989-08-25 1990-06-12 Motorola, Inc. Gain/phase compensation for linear amplifier feedback loop

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110163A1 (de) * 1970-03-04 1971-09-23 Fujitsu Ltd Anordnung zur selbsttätigen Verstärkungsregelung
US4757502A (en) * 1985-01-22 1988-07-12 Alcatel Thomson Faisceaux Hertizens Automatic gain control method and circuit for a time division multiple access receiver
EP0403247A2 (en) * 1989-06-13 1990-12-19 Nec Corporation AGC device for producing a gain controlled and d.c. offset removed signal

Also Published As

Publication number Publication date
US5204977A (en) 1993-04-20
GB2261335B (en) 1995-01-11
CA2077440C (en) 1999-01-12
DE4290924T1 (enExample) 1993-04-01
GB9225108D0 (en) 1993-02-10
WO1992017944A1 (en) 1992-10-15
JP2808891B2 (ja) 1998-10-08
JPH05508068A (ja) 1993-11-11
CA2077440A1 (en) 1992-10-02
MX9201488A (es) 1993-03-01
GB2261335A (en) 1993-05-12
BR9204766A (pt) 1993-07-06

Similar Documents

Publication Publication Date Title
DE4290924C2 (de) Vorrichtung und Verfahren zur automatischen Verstärkungssteuerung in einem Funkempfänger
DE69735335T2 (de) Wegnahme des DC-Offsets und Unterdrückung von verfälschten AM-Signalen in einem Direktumwandlungsempfänger
DE69828854T2 (de) Empfängervorrichtung
DE69127069T2 (de) Lernverfahren und -vorrichtung für einen linearen sender
DE3855263T2 (de) Rundfunkempfänger
DE4193233C2 (de) Einrichtung und Verfahren zur Gleichstromversatz-Korrektur für einen Empfänger
DE19835418B4 (de) Nachrichtenübermittlungsvorrichtung für digitale Nachrichtenübermittlung
DE69501996T2 (de) Verfahren und vorrichtung zur automatischer verstarkungsregelung und gleidspannungs-offsetunterdruckung in einem quadraturempfanger
DE4192408C1 (de) Funkempfänger und Verfahren zum Reduzieren von Interferenz
DE60001960T2 (de) Automatische verstärkungsregelung und offsetkorrektur
DE4192400C2 (de) Demodulationsverfahren- und Vorrichtung
DE69527549T2 (de) Verfahren und vorrichtung für einen linearen sender
EP1568143B1 (de) Sendestufe mit phasen und amplitudenregelschleife
DE69225064T2 (de) Intermodulationsausgleichung in einem empfangssystem
DE60117052T2 (de) Gemeinsame schätzung des gleichspannungsoffsets und des kanals mittels der methode der kleinsten quadrate
DE69327276T2 (de) Automatische Verstärkungsregelung für einen hochauflösenden Fernsehsignalempfänger mit adaptivem Entzerrer
DE10297220A1 (de) Einzelträger/Multiträger Drahtlos-Architektur
DE102004021867B4 (de) Verfahren zur Signalverarbeitung, insbesondere in einem Hochfrequenzempfänger und Signalaufbereitungsschaltung
DE60036981T2 (de) Empfänger und Verfahren zur Regelung der Verstärkung desselben
DE19735391B4 (de) Digitales Funksende- und -empfangssystem
DE60036556T2 (de) Empfänger, Sende-Empfänger, Funkeinheit und Verfahren zur Telekommunikation
DE102004052897B4 (de) Funkempfänger und Verfahren für den Empfang von mit zwei Modulationsarten modulierten Datenbursts
DE2048055C1 (de) Verfahren zur Feststellung der
DE69817534T2 (de) Demodulation mit aparten zweigen für phase sowie für amplitude
DE69329593T2 (de) Verfahren zur Kompensation von Mehrwegeausbreitung

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee