[go: up one dir, main page]

ATE438229T1 - Empfänger-dc-offset-korrektur - Google Patents

Empfänger-dc-offset-korrektur

Info

Publication number
ATE438229T1
ATE438229T1 AT06738526T AT06738526T ATE438229T1 AT E438229 T1 ATE438229 T1 AT E438229T1 AT 06738526 T AT06738526 T AT 06738526T AT 06738526 T AT06738526 T AT 06738526T AT E438229 T1 ATE438229 T1 AT E438229T1
Authority
AT
Austria
Prior art keywords
signal
correction value
communication
mixer
digital
Prior art date
Application number
AT06738526T
Other languages
English (en)
Inventor
Nangavalli Ramasubramanian
Raghuraman Krishnamoorthi
Krishna Mukkavilli
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE438229T1 publication Critical patent/ATE438229T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/02—Details
    • H03D1/04—Modifications of demodulators to reduce interference by undesired signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/008—Compensating DC offsets
    • 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
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Noise Elimination (AREA)
  • Dc Digital Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
AT06738526T 2005-03-11 2006-03-13 Empfänger-dc-offset-korrektur ATE438229T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66096805P 2005-03-11 2005-03-11
PCT/US2006/009474 WO2006099531A1 (en) 2005-03-11 2006-03-13 Receiver dc offset correction

Publications (1)

Publication Number Publication Date
ATE438229T1 true ATE438229T1 (de) 2009-08-15

Family

ID=36581888

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06738526T ATE438229T1 (de) 2005-03-11 2006-03-13 Empfänger-dc-offset-korrektur

Country Status (8)

Country Link
US (1) US20060227910A1 (de)
EP (1) EP1867057B1 (de)
JP (1) JP2008533877A (de)
KR (1) KR100954706B1 (de)
CN (1) CN101160732A (de)
AT (1) ATE438229T1 (de)
DE (1) DE602006008123D1 (de)
WO (1) WO2006099531A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7505744B1 (en) * 2005-07-28 2009-03-17 Rf Micro Devices, Inc. DC offset correction using multiple configurable feedback loops
US7912437B2 (en) * 2007-01-09 2011-03-22 Freescale Semiconductor, Inc. Radio frequency receiver having dynamic bandwidth control and method of operation
US20090122928A1 (en) * 2007-11-13 2009-05-14 Horizon Semiconductors Ltd. Apparatus and method for frequency estimation in the presence of narrowband gaussian noise
US8260227B2 (en) * 2008-06-10 2012-09-04 Mediatek Inc. Direct conversion receiver and DC offset concellation method
US8666343B2 (en) * 2008-09-15 2014-03-04 Analog Devices, Inc. DC-offset-correction system and method for communication receivers
TW201014213A (en) * 2008-09-29 2010-04-01 Realtek Semiconductor Corp WLAN transceiving system
US8358164B2 (en) * 2010-11-30 2013-01-22 Infineon Technologies Ag Square wave signal component cancellation
US8862648B2 (en) * 2011-05-24 2014-10-14 Taiwan Semiconductor Manufacturing Company, Ltd. Fast filter calibration apparatus
US8653996B2 (en) * 2012-02-10 2014-02-18 Analog Devices, Inc. Stability correction for a shuffler of a Σ-delta ADC
US9002312B1 (en) * 2012-06-21 2015-04-07 Rockwell Collins, Inc. Dynamic biasing for an active circuit
CN103944595B (zh) * 2013-01-23 2016-08-03 晨星半导体股份有限公司 信号接收装置与信号接收方法
US8884800B1 (en) * 2013-07-31 2014-11-11 Sony Corporation Method and apparatus for performing analog-to-digital conversion on multiple input signals
EP2930647B1 (de) 2014-04-11 2018-08-08 Nxp B.V. Kontaktlose Kommunikationsvorrichtung mit Empfängereingangsspannungsstabilisierung
CN107786236B (zh) * 2016-08-25 2020-01-21 瑞昱半导体股份有限公司 传收电路以及接收电路控制方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3486058B2 (ja) * 1996-06-24 2004-01-13 株式会社東芝 Ｄｃオフセット除去機能を備えた受信機
GB2328353B (en) * 1997-08-16 2002-10-02 Nec Technologies GSM mobile receiver
JP3337997B2 (ja) * 1999-03-29 2002-10-28 松下電器産業株式会社 周波数検出型位相同期回路
US6166668A (en) * 1999-06-01 2000-12-26 Motorola, Inc. Method and apparatus for providing DC offset correction and hold capability
US7076225B2 (en) * 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
US6560447B2 (en) * 2001-03-05 2003-05-06 Motorola, Inc. DC offset correction scheme for wireless receivers
US6941121B2 (en) * 2001-05-18 2005-09-06 Rf Micro Devices, Inc. Method for calibrating a DC offset cancellation level for direct conversion receivers
US7212797B2 (en) * 2002-04-26 2007-05-01 Qualcomm Incorporated DC removal techniques for wireless networking
US6943714B2 (en) * 2002-08-19 2005-09-13 Tdk Semiconductor Corporation Method and apparatus of obtaining power computation parameters
US7136431B2 (en) * 2002-10-24 2006-11-14 Broadcom Corporation DC offset correcting in a direct conversion or very low IF receiver

Also Published As

Publication number Publication date
KR100954706B1 (ko) 2010-04-23
KR20070110441A (ko) 2007-11-16
JP2008533877A (ja) 2008-08-21
US20060227910A1 (en) 2006-10-12
WO2006099531A1 (en) 2006-09-21
DE602006008123D1 (de) 2009-09-10
EP1867057B1 (de) 2009-07-29
CN101160732A (zh) 2008-04-09
EP1867057A1 (de) 2007-12-19

Similar Documents

Publication Publication Date Title
ATE438229T1 (de) Empfänger-dc-offset-korrektur
TW200501598A (en) Digital baseband system and process for compensating for analog radio transmitter impairments
TW200518486A (en) Compensating for analog radio component impairments to relax specifications
US7471155B1 (en) Cancelling switching power supply ripple from a radio frequency signal
US20060239380A1 (en) Power control system for a continuous time mobile transmitter
WO2003103169A3 (en) ADAPTIVE NOISE REDUCTION SYSTEM FOR A WIRELESS RECEIVER
WO2007092233A3 (en) Rf power amplifier controller circuit
EP2611029A3 (de) Leistungsverzerrungsbasierte Servosteuerungssysteme zur Frequenzeinstellung von RF-Leistungsquellen
TW200729727A (en) Integrated DSP for a DC offset cancellation loop
AU5817900A (en) A method and apparatus for performing dc-offset compensation in a radio receiver
TW200501635A (en) Adjusting the amplitude and phase characteristics of transmitter generated wireless communication signals in response to base station transmit power control signals and known transmitter amplifier characteristics
JP2005278222A5 (de)
EP1932308A4 (de) Verstärkersystem mit analoger polynomischer vorverzerrung mit sub-nyquist-digitalanpassung
US20070129032A1 (en) Transmission circuit and communication apparatus employing the same
TW200620851A (en) Receiver with baseline wander compensation
TW200627808A (en) Digital signal processor, receiver, corrector and methods for the same
TW200746741A (en) Method and device for compensating IQ imbalance
TW200501637A (en) Automatic gain control and antenna diversity method of wireless communication system
WO2007084876A3 (en) Systems and methods for reducing static phase error
WO2003005564A3 (de) Verfahren zur regelung der verstärkung eines hochfrequenten signals
WO2009047865A1 (ja) 受信回路、受信回路のａｄコンバータの変換テーブル作成方法、および信号伝送システム
TW200711331A (en) Transmitter delay and phase adjustment
TW200739309A (en) System for cancelling DC offset
US7254195B2 (en) Apparatus, methods and articles of manufacture for dynamic differential delay correction
PH12012502531A1 (en) Clocking scheme for a wireless communication device

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties