AU2000250291A1 - A generalized precoder for the upstream voiceband modem channel - Google Patents

A generalized precoder for the upstream voiceband modem channel

Info

Publication number
AU2000250291A1
AU2000250291A1 AU2000250291A AU5029100A AU2000250291A1 AU 2000250291 A1 AU2000250291 A1 AU 2000250291A1 AU 2000250291 A AU2000250291 A AU 2000250291A AU 5029100 A AU5029100 A AU 5029100A AU 2000250291 A1 AU2000250291 A1 AU 2000250291A1
Authority
AU
Australia
Prior art keywords
upstream
modem channel
voiceband modem
precoder
generalized
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.)
Abandoned
Application number
AU2000250291A
Inventor
Cory S. Modlin
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.)
Telogy Networks Inc
Original Assignee
Telogy Networks 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 Telogy Networks Inc filed Critical Telogy Networks Inc
Publication of AU2000250291A1 publication Critical patent/AU2000250291A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4906—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using binary codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Error Detection And Correction (AREA)
  • Telephonic Communication Services (AREA)
AU2000250291A 2000-02-10 2000-05-19 A generalized precoder for the upstream voiceband modem channel Abandoned AU2000250291A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US18152000P 2000-02-10 2000-02-10
US60181520 2000-02-10
PCT/US2000/013738 WO2001059946A1 (en) 2000-02-10 2000-05-19 A generalized precoder for the upstream voiceband modem channel
US09574206 2000-05-19
US09/574,206 US6434190B1 (en) 2000-02-10 2000-05-19 Generalized precoder for the upstream voiceband modem channel

Publications (1)

Publication Number Publication Date
AU2000250291A1 true AU2000250291A1 (en) 2001-08-20

Family

ID=26877246

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000250291A Abandoned AU2000250291A1 (en) 2000-02-10 2000-05-19 A generalized precoder for the upstream voiceband modem channel

Country Status (4)

Country Link
US (1) US6434190B1 (en)
EP (1) EP1124359B1 (en)
AU (1) AU2000250291A1 (en)
WO (1) WO2001059946A1 (en)

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US6597745B1 (en) * 1999-04-06 2003-07-22 Eric M. Dowling Reduced complexity multicarrier precoder
US6934677B2 (en) 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7321618B2 (en) 2002-04-09 2008-01-22 Texas Instruments Incorporated PCM upstream data transmission server
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
US20070183516A1 (en) * 2006-01-13 2007-08-09 Pantelis Monogioudis Wireless communications system employing OFDMA and CDMA techniques
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8237633B2 (en) * 2009-05-12 2012-08-07 Global Oled Technology Llc Electro-luminescent display with adjustable white point
EP2995056B1 (en) * 2013-05-08 2017-01-11 Telefonaktiebolaget LM Ericsson (publ) Spectrum shaping for ofdm/dmt
CN110679100B (en) * 2017-06-01 2022-03-25 中兴通讯股份有限公司 Signal processing

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5249200A (en) 1991-07-30 1993-09-28 Codex Corporation Device and method for combining precoding with symbol-rate spectral shaping
US5388124A (en) 1992-06-12 1995-02-07 University Of Maryland Precoding scheme for transmitting data using optimally-shaped constellations over intersymbol-interference channels
US5881108A (en) 1996-02-22 1999-03-09 Globespan Technologies, Inc. Adaptive pre-equalizer for use in data communications equipment
US5943365A (en) * 1996-10-16 1999-08-24 Cirrus Logic, Inc. Device, system, and method for modem communication utilizing DC or near-DC signal suppression
US5995548A (en) 1996-11-15 1999-11-30 3Com Corporation Signaling method using multiple modulus shell mapping
US6278744B1 (en) * 1996-11-15 2001-08-21 Conexant Systems, Inc. System for controlling and shaping the spectrum and redundancy of signal-point limited transmission
US5970100A (en) 1996-11-15 1999-10-19 Conexant Systems, Inc. System for controlling and shaping the spectrum and redundancy of signal-point limited transmission
US6081555A (en) * 1996-12-04 2000-06-27 Conexant Systems, Inc. Methods and apparatus for implementing shell mapping techniques in the context of a PCM-based modem communications system
US6259742B1 (en) * 1996-12-04 2001-07-10 Conexant Systems, Inc. Methods and apparatus for optimizing shell mapping techniques using an approximated power cost function
US6061392A (en) * 1996-12-17 2000-05-09 Paradyne Corporation Apparatus and method for communicating voice and data between a customer premises and a central office
US5987069A (en) 1996-12-24 1999-11-16 Gte Government Systems Corporation Method and apparatus for variably allocating upstream and downstream communication spectra
US5867529A (en) 1997-03-03 1999-02-02 General Datacomm Shaping filter for high data rate signalling
US5953374A (en) * 1997-03-03 1999-09-14 Pc-Tel, Inc. Bandpass spectral shaping of data signals
US6026120A (en) 1997-03-05 2000-02-15 Paradyne Corp. System and method for using circular constellations with uncoded modulation
IL131921A0 (en) * 1997-04-08 2001-03-19 Motorola Inc System and method for spectrally shaping transmitted data signals
US6222890B1 (en) * 1997-04-08 2001-04-24 Vocal Technologies, Ltd. Variable spectral shaping method for PCM modems
US5914982A (en) 1997-06-13 1999-06-22 Rockwell Semiconductor Systems, Inc. Method and apparatus for training linear equalizers in a PCM modem
KR100238301B1 (en) 1997-07-10 2000-01-15 윤종용 Co-channel interference detector and method therefor
US6061407A (en) 1997-10-08 2000-05-09 International Business Machines Corp. Transmission method and apparatus employing trellis-augmented precoding
US6034991A (en) 1998-01-26 2000-03-07 Conexant Systems, Inc. Method and apparatus for implementing enhanced multiple modulus conversion techniques in a signal point mapping context
US6065030A (en) 1998-03-30 2000-05-16 Conexant Systems, Inc. Method and apparatus for implementing short-word division techniques in a multiple modulus conversion context

Also Published As

Publication number Publication date
EP1124359A3 (en) 2004-01-02
WO2001059946A1 (en) 2001-08-16
EP1124359B1 (en) 2017-04-26
US6434190B1 (en) 2002-08-13
EP1124359A2 (en) 2001-08-16

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