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NO991578L - FremgangsmÕte for Õ bedre en mottakers immunitet mot interferens - Google Patents

FremgangsmÕte for Õ bedre en mottakers immunitet mot interferens

Info

Publication number
NO991578L
NO991578L NO991578A NO991578A NO991578L NO 991578 L NO991578 L NO 991578L NO 991578 A NO991578 A NO 991578A NO 991578 A NO991578 A NO 991578A NO 991578 L NO991578 L NO 991578L
Authority
NO
Norway
Prior art keywords
input amplifier
power level
switched
interference
circuit
Prior art date
Application number
NO991578A
Other languages
English (en)
Other versions
NO991578D0 (no
Inventor
Iv James A Hutchison
Chris P Wieck
Original Assignee
Qualcomm 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
Priority claimed from US08/723,491 external-priority patent/US5722061A/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of NO991578D0 publication Critical patent/NO991578D0/no
Publication of NO991578L publication Critical patent/NO991578L/no

Links

Classifications

    • 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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7239—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers and shunting lines by one or more switch(es)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Peptides Or Proteins (AREA)
  • Amplifiers (AREA)

Abstract

Fremgangsmåte for regulering av forsterkningen av en mottakerkrets i den hensikt å bedre denne krets' og den tilhørende mottakers immunitet overfor inter- ferens . Kretsen har en inngangsf orsterker (115) av lavstøytypen for å forsterke mottatte signaler, og effektnivået etter forsterkningen reguleres ved å endre inn- gangsforsterkerens forsterkning eller å frakople/tilkople den. Resultatet av effektnivåmålingen sammenliknes periodisk med en terskelverdi, og når måleresultatet overstiger denne frakoples inngangsfor- sterkeren. Den koples imidlertid inn igjen når målingen tilsier at effektnivået er lavere enn terskelverdien, og når det samtidig ikke registreres noen vesentlige intermodulasjonsprodukter som følge av interferenspåtrykk. Registreringen av slike produkter kan skje ved kortvarig å kople inn inngangs- forsterkeren (115) og registrere den til- hørende endring i målt effektnivå. Over- skrider endringen en gitt verdi foreligger betydelige intermodulasjonsprodukter, og inngangsforsterkeren koples da ikke inn, ellers har man en situasjon hvor det ikke foreligger noe betydelig interferenspå- trykk, og forsterkeren koples da inn igjen.
NO991578A 1996-09-30 1999-03-30 FremgangsmÕte for Õ bedre en mottakers immunitet mot interferens NO991578L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/723,491 US5722061A (en) 1994-12-16 1996-09-30 Method and apparatus for increasing receiver immunity to interference
PCT/US1997/016270 WO1999029047A1 (en) 1996-09-30 1997-09-30 Method and apparatus for increasing receiver immunity to interference

Publications (2)

Publication Number Publication Date
NO991578D0 NO991578D0 (no) 1999-03-30
NO991578L true NO991578L (no) 1999-05-28

Family

ID=26792759

Family Applications (1)

Application Number Title Priority Date Filing Date
NO991578A NO991578L (no) 1996-09-30 1999-03-30 FremgangsmÕte for Õ bedre en mottakers immunitet mot interferens

Country Status (16)

Country Link
EP (1) EP1020041B1 (no)
JP (1) JP4463332B2 (no)
KR (1) KR100432209B1 (no)
AT (1) ATE264028T1 (no)
AU (1) AU742121B2 (no)
BR (1) BR9712974A (no)
CA (1) CA2275115A1 (no)
DE (1) DE69728573T2 (no)
DK (1) DK1020041T3 (no)
ES (1) ES2222502T3 (no)
FI (1) FI990710A7 (no)
IL (1) IL129261A (no)
MX (1) MXPA99003034A (no)
NO (1) NO991578L (no)
RU (1) RU2211532C2 (no)
WO (1) WO1999029047A1 (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6801760B2 (en) * 2000-08-08 2004-10-05 Qualcomm Incorporated Control of receiver immunity to interference by controlling linearity
KR100531839B1 (ko) * 2001-09-20 2005-11-30 엘지전자 주식회사 씨디엠에이 단말기의 수신편차 보정방법
KR20030031377A (ko) * 2001-10-15 2003-04-21 삼성전자주식회사 이동통신 단말장치 수신기
FI115808B (fi) * 2002-07-12 2005-07-15 Filtronic Comtek Oy Pienikohinaisen vahvistimen ohitusjärjestely
US7418244B2 (en) 2003-08-04 2008-08-26 Analog Devices, Inc. Radio transmitter with accurate power control
US7248847B2 (en) * 2004-04-22 2007-07-24 Kyocera Wireless Corp. System and method for adaptively controlling receiver gain switch points
US8090327B2 (en) * 2008-12-02 2012-01-03 Broadcom Corporation Configurable baseband processing for receiver and transmitter and methods for use therewith
US12348336B2 (en) 2023-09-20 2025-07-01 Rohde & Schwarz Gmbh & Co. Kg System and method for generating modulated RF signals for controlling or reading-out a multiple-state system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602064A1 (de) * 1986-01-24 1987-07-30 Hirschmann Radiotechnik Regelschaltung fuer amplitudenmodulierte traegersignale
US4870372A (en) * 1988-05-20 1989-09-26 At&E Corporation AGC delay on an integrated circuit
JP2546347B2 (ja) * 1988-08-15 1996-10-23 日本電気株式会社 無線送受信装置
US5001776A (en) * 1988-10-27 1991-03-19 Motorola Inc. Communication system with adaptive transceivers to control intermodulation distortion
RU2012994C1 (ru) * 1989-03-01 1994-05-15 Белорусский государственный университет Устройство автоматической регулировки уровня сигнала
FI81931C (fi) * 1989-05-12 1990-12-10 Nokia Mobira Oy Foerfarande foer alstring av laoga effektnivaoer i saendaren av en radiotelefon.
RU2022451C1 (ru) * 1990-08-03 1994-10-30 Киевский институт инженеров гражданской авиации Устройство автоматической регулировки усиления
US5175871A (en) * 1991-08-08 1992-12-29 Ericsson/Ge Mobile Communication Holding Inc. Power amplifier for a cellular telephone

Also Published As

Publication number Publication date
FI990710A0 (fi) 1999-03-30
JP4463332B2 (ja) 2010-05-19
CA2275115A1 (en) 1999-06-10
IL129261A0 (en) 2001-04-30
HK1031280A1 (en) 2001-06-08
FI990710A7 (fi) 1999-03-30
AU742121B2 (en) 2001-12-20
IL129261A (en) 2003-09-17
ES2222502T3 (es) 2005-02-01
EP1020041A1 (en) 2000-07-19
RU2211532C2 (ru) 2003-08-27
KR20000049037A (ko) 2000-07-25
MXPA99003034A (es) 2005-07-25
NO991578D0 (no) 1999-03-30
KR100432209B1 (ko) 2004-05-20
JP2001505026A (ja) 2001-04-10
WO1999029047A1 (en) 1999-06-10
DE69728573T2 (de) 2005-03-31
BR9712974A (pt) 2002-01-02
EP1020041B1 (en) 2004-04-07
DE69728573D1 (de) 2004-05-13
AU4735697A (en) 1999-06-16
ATE264028T1 (de) 2004-04-15
DK1020041T3 (da) 2004-08-02

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