ATE267491T1 - Verfahren und vorrichtung zur demodulation und entzerrung eines am kompatiblen digitalen tonrundfunksignals - Google Patents

Verfahren und vorrichtung zur demodulation und entzerrung eines am kompatiblen digitalen tonrundfunksignals

Info

Publication number
ATE267491T1
ATE267491T1 AT99948118T AT99948118T ATE267491T1 AT E267491 T1 ATE267491 T1 AT E267491T1 AT 99948118 T AT99948118 T AT 99948118T AT 99948118 T AT99948118 T AT 99948118T AT E267491 T1 ATE267491 T1 AT E267491T1
Authority
AT
Austria
Prior art keywords
signal
equalization
carrier signals
equalizer coefficients
produce
Prior art date
Application number
AT99948118T
Other languages
English (en)
Inventor
David Carl Hartup
Don R Goldston
Original Assignee
Ibiquity Digital 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 Ibiquity Digital Corp filed Critical Ibiquity Digital Corp
Application granted granted Critical
Publication of ATE267491T1 publication Critical patent/ATE267491T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
AT99948118T 1998-10-02 1999-09-02 Verfahren und vorrichtung zur demodulation und entzerrung eines am kompatiblen digitalen tonrundfunksignals ATE267491T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/208,107 US6295317B1 (en) 1998-10-02 1998-10-02 Method and apparatus for demodulating and equalizing an AM compatible digital audio broadcast signal
PCT/US1999/020276 WO2000021261A1 (en) 1998-10-02 1999-09-02 Method and apparatus for demodulating and equalizing an am compatible digital audio broadcast signal

Publications (1)

Publication Number Publication Date
ATE267491T1 true ATE267491T1 (de) 2004-06-15

Family

ID=22773203

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99948118T ATE267491T1 (de) 1998-10-02 1999-09-02 Verfahren und vorrichtung zur demodulation und entzerrung eines am kompatiblen digitalen tonrundfunksignals

Country Status (13)

Country Link
US (2) US6295317B1 (de)
EP (1) EP1118195B1 (de)
JP (1) JP2002527949A (de)
KR (1) KR20010079967A (de)
CN (1) CN1151643C (de)
AT (1) ATE267491T1 (de)
AU (1) AU753955B2 (de)
BR (1) BR9914260A (de)
CA (1) CA2345999C (de)
DE (1) DE69917471D1 (de)
MX (1) MXPA01003333A (de)
RU (1) RU2222872C2 (de)
WO (1) WO2000021261A1 (de)

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US6292511B1 (en) * 1998-10-02 2001-09-18 Usa Digital Radio Partners, Lp Method for equalization of complementary carriers in an AM compatible digital audio broadcast system
US6546056B1 (en) * 1999-05-28 2003-04-08 3Com Corporation Timing recovery in a multi-tone modem
US6650700B1 (en) * 1999-10-22 2003-11-18 Zenith Electronics Corporation Dual path ghost eliminating equalizer with optimum noise enhancement
US6975689B1 (en) * 2000-03-30 2005-12-13 Mcdonald James Douglas Digital modulation signal receiver with adaptive channel equalization employing discrete fourier transforms
US6731682B1 (en) * 2000-04-07 2004-05-04 Zenith Electronics Corporation Multipath ghost eliminating equalizer with optimum noise enhancement
JP2001313594A (ja) * 2000-04-28 2001-11-09 Fujitsu Ltd Ｄｍｔシステムのタイムドメインイコライザーの係数更新方法、レシーブ方法、ｄｍｔシステム及びｄｍｔモデム
US6671340B1 (en) * 2000-06-15 2003-12-30 Ibiquity Digital Corporation Method and apparatus for reduction of interference in FM in-band on-channel digital audio broadcasting receivers
US6898249B2 (en) * 2002-12-17 2005-05-24 Ibiquity Digital Corporation Method and apparatus for AM digital audio broadcasting with amplitude scaled tertiary subcarriers
US7272189B2 (en) * 2003-10-11 2007-09-18 Visteon Global Technologies, Inc. Method to determine the presence of multi-carrier signals
US7321550B2 (en) * 2004-02-17 2008-01-22 Industrial Technology Research Institute Method of equalization in an OFDM system
US7697620B2 (en) * 2005-11-14 2010-04-13 Ibiquity Digital Corporation Equalizer for AM in-band on-channel radio receivers
JP5199660B2 (ja) * 2007-12-26 2013-05-15 三菱電機株式会社 受信装置
RU2569914C2 (ru) * 2010-07-22 2015-12-10 Конинклейке Филипс Электроникс Н.В. Возбуждение параметрических громкоговорителей
US9191256B2 (en) 2012-12-03 2015-11-17 Digital PowerRadio, LLC Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems
US8948272B2 (en) 2012-12-03 2015-02-03 Digital PowerRadio, LLC Joint source-channel decoding with source sequence augmentation
US8595590B1 (en) 2012-12-03 2013-11-26 Digital PowerRadio, LLC Systems and methods for encoding and decoding of check-irregular non-systematic IRA codes
US9197458B1 (en) * 2014-05-01 2015-11-24 Samsung Display Co., Ltd. Edge equalization via adjustment of unroll threshold for crossing slicer
US11296739B2 (en) * 2016-12-22 2022-04-05 Nuvoton Technology Corporation Japan Noise suppression device, noise suppression method, and reception device and reception method using same

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US4534054A (en) 1980-11-28 1985-08-06 Maisel Douglas A Signaling system for FM transmission systems
US4425642A (en) 1982-01-08 1984-01-10 Applied Spectrum Technologies, Inc. Simultaneous transmission of two information signals within a band-limited communications channel
US4881245A (en) 1983-07-01 1989-11-14 Harris Corporation Improved signalling method and apparatus
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AU589119B2 (en) 1984-04-17 1989-10-05 Nec Corporation Digital radio communication system utilizing quadrature modulated carrier waves
US5128933A (en) 1985-07-29 1992-07-07 Baranoff Rossine Dimitri Process and device for the radio transmission of coded data superimposed on a traditional frequency-modulated broadcast
US4881241A (en) 1988-02-24 1989-11-14 Centre National D'etudes Des Telecommunications Method and installation for digital communication, particularly between and toward moving vehicles
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US5134634A (en) 1989-08-31 1992-07-28 Nec Corporation Multilevel quadrature amplitude demodulator capable of compensating for a quadrature phase deviation of a carrier signal pair
FR2658016B1 (fr) 1990-02-06 1994-01-21 Etat Francais Cnet Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et demodulation coherente, et recepteur correspondant.
US5179576A (en) 1990-04-12 1993-01-12 Hopkins John W Digital audio broadcasting system
US5020076A (en) 1990-05-21 1991-05-28 Motorola, Inc. Hybrid modulation apparatus
JP2749456B2 (ja) 1991-03-06 1998-05-13 三菱電機株式会社 無線通信機
US5315583A (en) * 1991-04-11 1994-05-24 Usa Digital Radio Method and apparatus for digital audio broadcasting and reception
DE4111855C2 (de) 1991-04-11 1994-10-20 Inst Rundfunktechnik Gmbh Verfahren zum rundfunkmäßigen Übertragen eines digital codierten Datenstroms
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US5673292A (en) 1994-10-07 1997-09-30 Northrop Grumman Corporation AM-PSK system for broadcasting a composite analog and digital signal using adaptive M-ary PSK modulation
US5606576A (en) 1995-01-23 1997-02-25 Northrop Grumman Corporation Adaptive mode control system for AM compatible digital broadcast
US5559830A (en) 1995-01-23 1996-09-24 Xetron Corp. Equalization system for AM compatible digital receiver
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WO1997008877A1 (en) * 1995-08-31 1997-03-06 Usa Digital Radio Partners, L.P. Am compatible digital waveform demodulation using a dual fft
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US5633896A (en) 1996-02-21 1997-05-27 Usa Digital Radio Partners, L.P. AM compatible digital waveform demodulation using a dual FFT
US5703954A (en) 1996-02-20 1997-12-30 Usa Digital Radio Partners, L.P. Method and apparatus for improving the quality of AM compatible digital broadcast system signals in the presence of distortion
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Also Published As

Publication number Publication date
JP2002527949A (ja) 2002-08-27
US20020097796A1 (en) 2002-07-25
EP1118195B1 (de) 2004-05-19
CN1326633A (zh) 2001-12-12
DE69917471D1 (de) 2004-06-24
MXPA01003333A (es) 2004-02-17
RU2222872C2 (ru) 2004-01-27
US6295317B1 (en) 2001-09-25
CA2345999C (en) 2005-03-22
BR9914260A (pt) 2001-07-03
EP1118195A1 (de) 2001-07-25
KR20010079967A (ko) 2001-08-22
CA2345999A1 (en) 2000-04-13
US6480536B2 (en) 2002-11-12
WO2000021261A1 (en) 2000-04-13
AU753955B2 (en) 2002-10-31
AU6135899A (en) 2000-04-26
CN1151643C (zh) 2004-05-26

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