DE60127763D1 - Spiegelfrequenzunterdrückung in Quadraturdemodulatoren - Google Patents

Spiegelfrequenzunterdrückung in Quadraturdemodulatoren

Info

Publication number
DE60127763D1
DE60127763D1 DE60127763T DE60127763T DE60127763D1 DE 60127763 D1 DE60127763 D1 DE 60127763D1 DE 60127763 T DE60127763 T DE 60127763T DE 60127763 T DE60127763 T DE 60127763T DE 60127763 D1 DE60127763 D1 DE 60127763D1
Authority
DE
Germany
Prior art keywords
image rejection
quadrature demodulators
demodulators
quadrature
rejection
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
DE60127763T
Other languages
English (en)
Other versions
DE60127763T2 (de
Inventor
Liu Bin
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.)
Broadcom Corp
Original Assignee
Broadcom Corp
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 Broadcom Corp filed Critical Broadcom Corp
Publication of DE60127763D1 publication Critical patent/DE60127763D1/de
Application granted granted Critical
Publication of DE60127763T2 publication Critical patent/DE60127763T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
DE60127763T 2000-06-12 2001-06-12 Spiegelfrequenzunterdrückung in Quadraturdemodulatoren Expired - Lifetime DE60127763T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US591925 1996-01-25
US09/591,925 US6560449B1 (en) 2000-06-12 2000-06-12 Image-rejection I/Q demodulators

Publications (2)

Publication Number Publication Date
DE60127763D1 true DE60127763D1 (de) 2007-05-24
DE60127763T2 DE60127763T2 (de) 2007-12-27

Family

ID=24368528

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60127763T Expired - Lifetime DE60127763T2 (de) 2000-06-12 2001-06-12 Spiegelfrequenzunterdrückung in Quadraturdemodulatoren

Country Status (3)

Country Link
US (2) US6560449B1 (de)
EP (1) EP1164759B1 (de)
DE (1) DE60127763T2 (de)

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US7379723B2 (en) 2004-07-29 2008-05-27 Silicon Laboratories Inc. Local oscillator and mixer for transceiver
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EP1641132B8 (de) * 2004-09-24 2007-09-05 Alcatel Lucent Sender und Übertragungsverfahren
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US7190733B2 (en) * 2004-11-22 2007-03-13 Cognio, Inc. Memoryless spectrum correction algorithm for non-ideal I/Q demodulators
US7684778B1 (en) * 2005-02-23 2010-03-23 Marvell International Ltd. Image cancellation in receivers
US7373127B2 (en) * 2005-04-27 2008-05-13 Delphi Technologies, Inc. Digital beam forming for communications systems
JP2006324795A (ja) * 2005-05-17 2006-11-30 Matsushita Electric Ind Co Ltd イメ−ジリジェクションミキサと帯域フィルタを有する受信ｉｆシステム
US7848453B2 (en) * 2005-06-29 2010-12-07 Broadcom Corporation Independent LO IQ tuning for improved image rejection
US7593454B2 (en) * 2005-07-28 2009-09-22 Itt Manufacturing Enterprises, Inc. Enhanced QPSK or DQPSK data demodulation for direct sequence spreading (DSS) system waveforms using orthogonal or near-orthogonal spreading sequences
US7421252B2 (en) * 2005-08-02 2008-09-02 Freescale Semiconductor, Inc. Center frequency control of an integrated phase rotator band-pass filter using VCO coarse trim bits
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US8073080B2 (en) * 2006-12-06 2011-12-06 Broadcom Corporation Method and system for RC-CR quadrature generation with wideband coverage and process compensation
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US8155235B2 (en) * 2007-01-30 2012-04-10 Panasonic Corporation Modulation device and demodulation device
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US7742545B2 (en) * 2007-05-30 2010-06-22 Motorola, Inc. Method and apparatus for generating corrected quadrature phase signal pairs in a communication device
JP2009049771A (ja) * 2007-08-21 2009-03-05 Toshiba Corp 変復調装置及び変復調方法
US8132037B2 (en) * 2008-06-06 2012-03-06 Roche Diagnostics International Ag Apparatus and method for processing wirelessly communicated data and clock information within an electronic device
FR2933551B1 (fr) * 2008-07-04 2011-11-25 Thales Sa Melangeur heterodyne reconfigurable et procedes de configuration
KR101622251B1 (ko) 2008-10-07 2016-05-20 삼성전자주식회사 이동통신 시스템에서 아이큐 불일치를 보상하기 위한 장치 및 방법
JP5218173B2 (ja) * 2009-03-12 2013-06-26 富士通株式会社 無線送信機の位相補正装置、無線送信機の歪補償装置
RU2520357C2 (ru) * 2009-03-31 2014-06-20 Конинклейке Филипс Электроникс Н.В. Система демодуляции сигнала
EP2239860B1 (de) * 2009-04-07 2012-08-15 The Swatch Group Research and Development Ltd. SIGNALEMPFÄNGER MIT FSK-MODULATION GROßER SENSIBILITÄT MIT GERINGEM DURCHSATZ
US8787860B2 (en) 2011-07-21 2014-07-22 Marvell World Trade Ltd. Image cancellation in receivers using dual adaptive filters
US9252743B2 (en) * 2012-09-28 2016-02-02 Intel Corporation Distributed polyphase filter
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Also Published As

Publication number Publication date
US7184737B2 (en) 2007-02-27
EP1164759A3 (de) 2004-01-02
EP1164759A2 (de) 2001-12-19
EP1164759B1 (de) 2007-04-11
US6560449B1 (en) 2003-05-06
DE60127763T2 (de) 2007-12-27
US20030181187A1 (en) 2003-09-25

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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: BOSCH JEHLE PATENTANWALTSGESELLSCHAFT MBH, 80639 M