DE60018624D1 - Digitales filter mit umschaltbarer bandbreite mit verringerten transienten während des schaltens - Google Patents

Digitales filter mit umschaltbarer bandbreite mit verringerten transienten während des schaltens

Info

Publication number
DE60018624D1
DE60018624D1 DE60018624T DE60018624T DE60018624D1 DE 60018624 D1 DE60018624 D1 DE 60018624D1 DE 60018624 T DE60018624 T DE 60018624T DE 60018624 T DE60018624 T DE 60018624T DE 60018624 D1 DE60018624 D1 DE 60018624D1
Authority
DE
Germany
Prior art keywords
digital filter
during switching
transient during
reduced transient
switchable bandwidth
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
DE60018624T
Other languages
English (en)
Other versions
DE60018624T2 (de
Inventor
J William Whikehart
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Publication of DE60018624D1 publication Critical patent/DE60018624D1/de
Application granted granted Critical
Publication of DE60018624T2 publication Critical patent/DE60018624T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters
    • H03H2017/0295—Changing between two filter characteristics

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Superheterodyne Receivers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Noise Elimination (AREA)
DE60018624T 1999-02-08 2000-01-17 Digitales filter mit umschaltbarer bandbreite mit verringerten transienten während des schaltens Expired - Lifetime DE60018624T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/247,214 US6445735B1 (en) 1999-02-08 1999-02-08 Switched bandwidth digital filters with reduced transients during switching
US247214 1999-02-08

Publications (2)

Publication Number Publication Date
DE60018624D1 true DE60018624D1 (de) 2005-04-21
DE60018624T2 DE60018624T2 (de) 2006-04-13

Family

ID=22934068

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60018624T Expired - Lifetime DE60018624T2 (de) 1999-02-08 2000-01-17 Digitales filter mit umschaltbarer bandbreite mit verringerten transienten während des schaltens

Country Status (3)

Country Link
US (1) US6445735B1 (de)
EP (1) EP1026824B1 (de)
DE (1) DE60018624T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001285029A (ja) * 2000-03-31 2001-10-12 Pioneer Electronic Corp ディジタルフィルタおよびディジタルフィルタを用いた基準信号キャンセル装置
US6845135B2 (en) * 2001-01-22 2005-01-18 Agere Systems Inc. Cascaded biquad infinite impulse response filter
US6988116B2 (en) * 2002-04-15 2006-01-17 Visteon Global Technologies, Inc. Method of designing polynomials for controlling the slewing of adaptive digital films
US6996197B2 (en) * 2003-09-17 2006-02-07 Motorola, Inc. Method and apparatus for reducing interference within a communication system
US7596195B2 (en) * 2004-03-31 2009-09-29 Broadcom Corporation Bandpass filter with reversible IQ polarity to enable a high side or low side injection receiver architecture
US7603098B2 (en) * 2004-03-31 2009-10-13 Broadcom Corporation Programmable IF frequency filter for enabling a compromise between DC offset rejection and image rejection
US7515888B2 (en) * 2005-10-06 2009-04-07 Nxp B.V. Systems and method for a highly integrated, multi-mode tuner
DE102005050309A1 (de) * 2005-10-20 2007-04-26 Rohde & Schwarz Gmbh & Co. Kg Digitale Filterkaskade mit einem während des Einschwingungvorgangs bandbreitenerhöhten Filter
US20080133636A1 (en) * 2006-12-05 2008-06-05 Beamish Norman J High pass filter
DE102007022978A1 (de) * 2007-05-15 2008-11-20 Atmel Germany Gmbh Korrelationsvorrichtung
FR2918235B1 (fr) * 2007-06-28 2009-10-02 Thomson Licensing Sas Filtre canal, notamment pour un recepteur de television numerique.
US8108453B2 (en) * 2007-12-17 2012-01-31 Applied Micro Circuits Corporation System and method for filter response switching
US8873615B2 (en) * 2012-09-19 2014-10-28 Avago Technologies General Ip (Singapore) Pte. Ltd. Method and controller for equalizing a received serial data stream
US9985608B2 (en) 2015-09-24 2018-05-29 Analog Devices Global Small area and low power IIR filter structure
IT201800002401A1 (it) 2018-02-05 2019-08-05 St Microelectronics Srl Procedimento di filtraggio digitale, circuito e dispositivo corrispondenti

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356567A (en) 1977-06-28 1982-10-26 Pioneer Electronic Corporation Radio receiver with bandwidth switching
US4177430A (en) 1978-03-06 1979-12-04 Rockwell International Corporation Adaptive noise cancelling receiver
GB2061656B (en) * 1979-09-14 1983-10-19 Victor Company Of Japan Digital filter
US4339828A (en) * 1979-10-12 1982-07-13 Chasek Norman E Automatic method for advantageously trading signal distortion for improved noise threshold in frequency modulated receivers
US4352208A (en) 1980-03-04 1982-09-28 Motorola, Inc. Automatic IF selectivity for radio receiver system
DE3702215A1 (de) * 1987-01-26 1988-08-04 Ant Nachrichtentech Uebertragungsanordnung fuer digitale signale
DE3724604A1 (de) 1987-04-15 1988-12-01 H U C Elektronik Gmbh Anordnung zum filtern eines fm-ukw-empfangssignals
DE4005272A1 (de) 1990-02-20 1991-08-22 Bosch Gmbh Robert Verfahren zur zf-bandbreitenumschaltung sowie zf-bandbreitenumschaltvorrichtung
US5287556A (en) 1990-09-28 1994-02-15 Motorola, Inc. Interference reduction using an adaptive receiver filter, signal strength, and BER sensing
US5307515A (en) 1991-08-05 1994-04-26 Ford Motor Company Adjacent channel controller for radio receiver
US5498998A (en) 1992-11-16 1996-03-12 Gehrke; James K. Method for adjusting the output frequency of a frequency synthesizer
CA2112171C (en) 1993-02-25 2003-10-21 Bradley Anderson Ballard Dsp-based vehicle equalization design system
US5717726A (en) * 1993-03-24 1998-02-10 Robert Bosch Gmbh Digital filter
US5388062A (en) 1993-05-06 1995-02-07 Thomson Consumer Electronics, Inc. Reconfigurable programmable digital filter architecture useful in communication receiver
DE4319457C2 (de) 1993-06-11 1997-09-04 Blaupunkt Werke Gmbh Schaltungsanordnung zur Nachbarkanalerkennung und -unterdrückung in einem FM-Rundfunkempfänger
JPH07183822A (ja) 1993-12-24 1995-07-21 Nec Corp 隣接チャネルの高レベル妨害波による誤動作防止 機能を持つ受信回路
US5732237A (en) 1993-12-24 1998-03-24 Fujitsu Ten Limited Security system for audio equipment where identification data from a compact disc is stored in memory
JPH0851338A (ja) * 1994-05-31 1996-02-20 Icom Inc 帯域通過楕円ディジタルフィルタシステム
US5465410A (en) 1994-11-22 1995-11-07 Motorola, Inc. Method and apparatus for automatic frequency and bandwidth control
US5612978A (en) 1995-05-30 1997-03-18 Motorola, Inc. Method and apparatus for real-time adaptive interference cancellation in dynamic environments
US5777909A (en) * 1995-12-29 1998-07-07 Crystal Semiconductor Corporation High pass filter with coefficient switching to improve settling time
JPH1075159A (ja) * 1996-08-30 1998-03-17 Icom Inc ディジタルフィルタシステム
US6271720B1 (en) * 1998-09-02 2001-08-07 Linear Technology Corporation Operational filter building block

Also Published As

Publication number Publication date
EP1026824A2 (de) 2000-08-09
US6445735B1 (en) 2002-09-03
EP1026824A3 (de) 2004-01-02
DE60018624T2 (de) 2006-04-13
EP1026824B1 (de) 2005-03-16

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