DE69940251D1 - Filteranordnung zur Unterdrückung einer Gleichstromkomponente - Google Patents

Filteranordnung zur Unterdrückung einer Gleichstromkomponente

Info

Publication number
DE69940251D1
DE69940251D1 DE69940251T DE69940251T DE69940251D1 DE 69940251 D1 DE69940251 D1 DE 69940251D1 DE 69940251 T DE69940251 T DE 69940251T DE 69940251 T DE69940251 T DE 69940251T DE 69940251 D1 DE69940251 D1 DE 69940251D1
Authority
DE
Germany
Prior art keywords
suppressing
component
filter arrangement
filter
arrangement
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
DE69940251T
Other languages
English (en)
Inventor
Nigel Greer
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.)
NXP BV
Original Assignee
NXP BV
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 NXP BV filed Critical NXP BV
Application granted granted Critical
Publication of DE69940251D1 publication Critical patent/DE69940251D1/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
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/08—Frequency selective two-port networks using gyrators
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
DE69940251T 1998-12-08 1999-11-29 Filteranordnung zur Unterdrückung einer Gleichstromkomponente Expired - Lifetime DE69940251D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9815484 1998-12-08

Publications (1)

Publication Number Publication Date
DE69940251D1 true DE69940251D1 (de) 2009-02-26

Family

ID=9533721

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69940251T Expired - Lifetime DE69940251D1 (de) 1998-12-08 1999-11-29 Filteranordnung zur Unterdrückung einer Gleichstromkomponente

Country Status (7)

Country Link
US (2) US6545569B1 (de)
EP (1) EP1011191B1 (de)
JP (1) JP4494565B2 (de)
KR (1) KR100701488B1 (de)
CN (1) CN1146109C (de)
DE (1) DE69940251D1 (de)
TW (1) TW445700B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW586263B (en) * 2003-01-29 2004-05-01 Mediatek Inc Analog demodulator in a low-IF receiver
US7689189B2 (en) * 2005-04-06 2010-03-30 Silicon Laboratories Inc. Circuit and method for signal reception using a low intermediate frequency reception
CN101968964B (zh) * 2010-08-20 2015-09-02 北京中星微电子有限公司 一种去除语音信号中直流分量的方法及装置
CN104820151B (zh) * 2015-05-08 2017-11-14 天津百利机械装备集团有限公司中央研究院 一种100a全数字化有源电力滤波器的信号定标方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1174709A (en) * 1968-06-07 1969-12-17 Standard Telephones Cables Ltd A Symmetrical Polyphase Network
US5398002A (en) * 1989-02-15 1995-03-14 Samsung Electronics Co., Ltd. Automatic frequency control system by quadrature-phase in frequency or phase demodulating system
JPH0437317A (ja) * 1990-06-01 1992-02-07 Toyo Commun Equip Co Ltd 受信機の感度抑圧防止及び混信防止方法
KR100355684B1 (ko) * 1992-11-26 2002-12-11 코닌클리케 필립스 일렉트로닉스 엔.브이. 직접변환수신기
US5613234A (en) * 1994-10-28 1997-03-18 Lucent Technologies Inc. Receive filter using frequency translation for or in cellular telephony base station
US5548244A (en) * 1994-11-14 1996-08-20 Hughes Aircraft Company Method and apparatus for eliminating DC offset for digital I/Q demodulators
FR2760535B1 (fr) * 1997-03-04 1999-05-28 Thomson Csf Dispositif de reduction de bruit dans un recepteur radar
US6005506A (en) * 1997-12-09 1999-12-21 Qualcomm, Incorporated Receiver with sigma-delta analog-to-digital converter for sampling a received signal
KR100344469B1 (ko) * 1997-12-27 2002-09-18 주식회사 만도 앤티록 브레이크 시스템의 휠압력 제어방법
US6208875B1 (en) * 1998-04-08 2001-03-27 Conexant Systems, Inc. RF architecture for cellular dual-band telephones
US6922555B1 (en) * 1999-09-02 2005-07-26 Koninklijke Philips Electronics N.V. Phase interpolation receiver for angle modulated RF signals

Also Published As

Publication number Publication date
EP1011191A1 (de) 2000-06-21
US7058382B2 (en) 2006-06-06
TW445700B (en) 2001-07-11
JP2000209065A (ja) 2000-07-28
CN1260635A (zh) 2000-07-19
KR100701488B1 (ko) 2007-04-02
KR20000052431A (ko) 2000-08-25
US20030124981A1 (en) 2003-07-03
CN1146109C (zh) 2004-04-14
EP1011191B1 (de) 2009-01-07
US6545569B1 (en) 2003-04-08
JP4494565B2 (ja) 2010-06-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition