DE69224581T2 - Verstellbare Bandbreite eines Funktelefons - Google Patents

Verstellbare Bandbreite eines Funktelefons

Info

Publication number
DE69224581T2
DE69224581T2 DE69224581T DE69224581T DE69224581T2 DE 69224581 T2 DE69224581 T2 DE 69224581T2 DE 69224581 T DE69224581 T DE 69224581T DE 69224581 T DE69224581 T DE 69224581T DE 69224581 T2 DE69224581 T2 DE 69224581T2
Authority
DE
Germany
Prior art keywords
radio telephone
adjustable bandwidth
bandwidth
adjustable
telephone
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
DE69224581T
Other languages
English (en)
Other versions
DE69224581D1 (de
Inventor
Seppo Kalervo Kivela
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.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Application granted granted Critical
Publication of DE69224581D1 publication Critical patent/DE69224581D1/de
Publication of DE69224581T2 publication Critical patent/DE69224581T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • 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
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • H04B2001/1054—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by changing bandwidth

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69224581T 1991-10-17 1992-10-12 Verstellbare Bandbreite eines Funktelefons Expired - Fee Related DE69224581T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/779,347 US5303404A (en) 1991-10-17 1991-10-17 Adjustable bandwidth in a radiotelephone

Publications (2)

Publication Number Publication Date
DE69224581D1 DE69224581D1 (de) 1998-04-09
DE69224581T2 true DE69224581T2 (de) 1998-07-30

Family

ID=25116142

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69224581T Expired - Fee Related DE69224581T2 (de) 1991-10-17 1992-10-12 Verstellbare Bandbreite eines Funktelefons

Country Status (4)

Country Link
US (1) US5303404A (de)
EP (1) EP0537960B1 (de)
JP (1) JP3174412B2 (de)
DE (1) DE69224581T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116886A1 (de) * 2001-04-04 2002-10-17 Rohde & Schwarz Verfahren zum Optimieren des Frequenzaufbereitungszuges eines Hochfrequenz-Überlagerungsempfängers

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507025A (en) * 1993-11-02 1996-04-09 Winegard Company Method and apparatus for satellite receiver with variable predetection bandwidth
JPH07250115A (ja) * 1994-03-09 1995-09-26 Toshiba Corp デジタルデータ受信装置
JP3084196B2 (ja) * 1994-12-27 2000-09-04 アイコム株式会社 無線通信機
JP3839932B2 (ja) 1996-09-26 2006-11-01 キヤノン株式会社 プロセスカートリッジ及び電子写真画像形成装置及び電子写真感光体ドラム及びカップリング
US5898906A (en) * 1996-10-29 1999-04-27 Gec Plessey Semiconductors, Inc. System and method for implementing a cellular radio transmitter device
FI103744B (fi) 1997-10-15 1999-08-31 Nokia Mobile Phones Ltd Menetelmä ja järjestely aktiivisuotimen kalibroimiseksi
US6405025B1 (en) 1997-12-09 2002-06-11 Nokia Mobile Phones Limited Method for selecting the frequency range in radio communication devices operating in several frequency ranges and a radio communication device
FI120124B (fi) 1998-05-29 2009-06-30 Nokia Corp Menetelmä ja piiri signaalin näytteistämiseksi suurella näytteistystaajuudella
JP2000236268A (ja) * 1999-02-15 2000-08-29 Toyo Commun Equip Co Ltd ソフトウェア無線機
GB0002945D0 (en) * 2000-02-10 2000-03-29 Pace Micro Tech Ltd Variable resolution bandwidth control
US6738604B2 (en) * 2001-07-31 2004-05-18 Qualcomm, Inc. Programmable IF bandwidth using fixed bandwidth filters
WO2003084083A1 (fr) * 2002-03-28 2003-10-09 Sharp Kabushiki Kaisha Emetteur, recepteur et dispositif de communication sans fil comprenant un emetteur et un recepteur
FR2849726B1 (fr) * 2003-01-06 2005-02-25 Thomson Licensing Sa Dispositif de filtrage tres selectif et procede de filtrage correspondant
US7272375B2 (en) * 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
EP1894307B1 (de) * 2005-02-09 2008-12-17 Astrium Limited Verbesserungen in bezug auf die kanalfilterung in funkkommunikationssystemen
JP2009124292A (ja) * 2007-11-13 2009-06-04 Sanyo Electric Co Ltd ラジオ受信機
CN101436869B (zh) * 2008-11-27 2012-07-04 华为技术有限公司 等效射频带陷滤波电路、射频芯片及接收机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953802A (en) * 1974-06-06 1976-04-27 Edmac Associates Inc. Adjacent channel rejector
US4267605A (en) * 1979-02-26 1981-05-12 Trio Kabushiki Kaisha Interference eliminator in communication receiver
US4262361A (en) * 1979-06-29 1981-04-14 Edmac Associates, Inc. Variable bandwidth filtering and frequency converting system
GB2215565B (en) * 1988-03-12 1992-01-29 Plessey Co Plc Improvements relating to signal suppression in radio frequency receivers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116886A1 (de) * 2001-04-04 2002-10-17 Rohde & Schwarz Verfahren zum Optimieren des Frequenzaufbereitungszuges eines Hochfrequenz-Überlagerungsempfängers
DE10116886B4 (de) * 2001-04-04 2007-08-30 Rohde & Schwarz Gmbh & Co. Kg Verfahren zum Optimieren des Frequenzaufbereitungszuges eines Hochfrequenz-Überlagerungsempfängers

Also Published As

Publication number Publication date
JP3174412B2 (ja) 2001-06-11
EP0537960A1 (de) 1993-04-21
JPH05227051A (ja) 1993-09-03
EP0537960B1 (de) 1998-03-04
US5303404A (en) 1994-04-12
DE69224581D1 (de) 1998-04-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee