DE60232685D1 - Direktumsetzungsempfänger - Google Patents

Direktumsetzungsempfänger

Info

Publication number
DE60232685D1
DE60232685D1 DE60232685T DE60232685T DE60232685D1 DE 60232685 D1 DE60232685 D1 DE 60232685D1 DE 60232685 T DE60232685 T DE 60232685T DE 60232685 T DE60232685 T DE 60232685T DE 60232685 D1 DE60232685 D1 DE 60232685D1
Authority
DE
Germany
Prior art keywords
direct implementation
receiver
implementation receiver
direct
implementation
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 - Lifetime
Application number
DE60232685T
Other languages
English (en)
Inventor
Sachiko Tanaka
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE60232685D1 publication Critical patent/DE60232685D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/0047—Offset of DC voltage or frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/009—Reduction of local oscillator or RF leakage

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE60232685T 2002-04-23 2002-04-23 Direktumsetzungsempfänger Expired - Lifetime DE60232685D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/004042 WO2003092180A1 (fr) 2002-04-23 2002-04-23 Recepteur a conversion directe

Publications (1)

Publication Number Publication Date
DE60232685D1 true DE60232685D1 (de) 2009-07-30

Family

ID=29267245

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60232685T Expired - Lifetime DE60232685D1 (de) 2002-04-23 2002-04-23 Direktumsetzungsempfänger

Country Status (5)

Country Link
US (1) US7133656B2 (de)
EP (1) EP1487123B1 (de)
JP (1) JP3839828B2 (de)
DE (1) DE60232685D1 (de)
WO (1) WO2003092180A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7949323B1 (en) * 2006-02-24 2011-05-24 Texas Instruments Incorporated Local oscillator leakage counterbalancing in a receiver
ES2400785T3 (es) * 2010-02-19 2013-04-12 Telefonaktiebolaget Lm Ericsson (Publ) Conversión por reducción de frecuencia usando señales de oscilador local de onda cuadrada
US8817925B2 (en) 2012-03-16 2014-08-26 Qualcomm Incorporated System and method for RF spur cancellation
CN108242940A (zh) * 2016-12-26 2018-07-03 中兴通讯股份有限公司 一种消除本振泄漏的装置及方法
CN109001691A (zh) * 2018-09-19 2018-12-14 天津大学 一种新型抑制直流偏置的多普勒雷达电路结构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944025A (en) * 1988-08-09 1990-07-24 At&E Corporation Direct conversion FM receiver with offset
US5119399A (en) * 1990-09-28 1992-06-02 Hewlett-Packard Co. Quadrature measurement and calibration of a vector modulator
US5918167A (en) * 1997-03-11 1999-06-29 Northern Telecom Limited Quadrature downconverter local oscillator leakage canceller
JP2001119316A (ja) * 1999-10-19 2001-04-27 Kyocera Corp ダイレクトコンバージョン受信機
JP2002076976A (ja) * 2000-08-28 2002-03-15 Matsushita Electric Ind Co Ltd ダイレクトコンバージョン受信装置

Also Published As

Publication number Publication date
EP1487123B1 (de) 2009-06-17
JPWO2003092180A1 (ja) 2005-09-02
EP1487123A4 (de) 2005-07-06
US7133656B2 (en) 2006-11-07
US20050020230A1 (en) 2005-01-27
WO2003092180A1 (fr) 2003-11-06
JP3839828B2 (ja) 2006-11-01
EP1487123A1 (de) 2004-12-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE