AU2001233223A1 - Method and apparatus for achieving 180degrees phase invariant transmission in a pcm modem system - Google Patents

Method and apparatus for achieving 180degrees phase invariant transmission in a pcm modem system

Info

Publication number
AU2001233223A1
AU2001233223A1 AU2001233223A AU3322301A AU2001233223A1 AU 2001233223 A1 AU2001233223 A1 AU 2001233223A1 AU 2001233223 A AU2001233223 A AU 2001233223A AU 3322301 A AU3322301 A AU 3322301A AU 2001233223 A1 AU2001233223 A1 AU 2001233223A1
Authority
AU
Australia
Prior art keywords
180degrees
achieving
modem system
pcm modem
phase invariant
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
AU2001233223A
Other languages
English (en)
Inventor
Dae-Young Kim
Patrick Maurer
Sepehr Mehrabanzad
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of AU2001233223A1 publication Critical patent/AU2001233223A1/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
    • H04L25/4917—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
AU2001233223A 2000-02-07 2001-02-01 Method and apparatus for achieving 180degrees phase invariant transmission in a pcm modem system Abandoned AU2001233223A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09499173 2000-02-07
US09/499,173 US6418170B1 (en) 2000-02-07 2000-02-07 Method and apparatus for achieving 180° phase invariant transmission in a PCM modem system
PCT/US2001/003338 WO2001058059A1 (en) 2000-02-07 2001-02-01 Method and apparatus for achieving 180° phase invariant transmission in a pcm modem system

Publications (1)

Publication Number Publication Date
AU2001233223A1 true AU2001233223A1 (en) 2001-08-14

Family

ID=23984144

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001233223A Abandoned AU2001233223A1 (en) 2000-02-07 2001-02-01 Method and apparatus for achieving 180degrees phase invariant transmission in a pcm modem system

Country Status (8)

Country Link
US (1) US6418170B1 (ja)
EP (1) EP1258091A4 (ja)
JP (1) JP4834874B2 (ja)
KR (1) KR100787794B1 (ja)
CN (2) CN1290276C (ja)
AU (1) AU2001233223A1 (ja)
CA (1) CA2399076C (ja)
WO (1) WO2001058059A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7099403B1 (en) * 1999-12-09 2006-08-29 Agere Systems Inc. Precoding for a non-linear codec
US7292648B1 (en) * 1999-12-09 2007-11-06 Agere Systems Inc. Precoding for a non-linear codec
US6954492B1 (en) * 2000-04-19 2005-10-11 3Com Corporation Method of differential encoding a precoded multiple modulus encoder
US7391816B2 (en) * 2003-09-17 2008-06-24 Intel Corporation Decoding upstream V.92-encoded signals
EP2288048A1 (en) * 2009-08-21 2011-02-23 Panasonic Corporation Rotated multi-dimensional constellations for improved diversity in fading channels
CN102608697B (zh) * 2012-03-20 2013-11-06 清华大学 基于光子晶体实现电磁波相位不变传输的方法
CN104022989B (zh) * 2014-05-09 2017-11-10 国家电网公司 用于电力无线专网的1符号差分4fsk解调方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713817A (en) * 1985-04-25 1987-12-15 Codex Corporation Multidimensional, convolutionally coded communication systems
US5040191A (en) * 1987-02-24 1991-08-13 Codex Corporation Partial response channel signaling systems
US5387885A (en) * 1990-05-03 1995-02-07 University Of North Carolina Salphasic distribution of timing signals for the synchronization of physically separated entities
EP0620668B1 (en) * 1993-04-15 2000-06-07 Samsung Electronics Co., Ltd. Removal of plus/minus 90 and 180 phase errors in QAM receivers
JPH0897866A (ja) * 1994-09-22 1996-04-12 Toshiba Corp Ｆｅｃ復号器
JPH1056486A (ja) * 1996-08-09 1998-02-24 Fujitsu Ltd 復調装置
US5818879A (en) * 1996-10-15 1998-10-06 Motorola Inc. Device, system and method for spectrally shaping transmitted data signals
CA2267362A1 (en) * 1996-09-25 1998-04-02 Pierre A. Humblet Device, system and method for spectrally shaping transmitted data signals
US6198776B1 (en) * 1996-11-13 2001-03-06 Motorola Inc. Device and method for precoding data signals for PCM transmission
AU6882498A (en) * 1997-04-08 1998-10-30 Motorola, Inc. System and method for spectrally shaping transmitted data signals
US6181752B1 (en) * 1997-12-29 2001-01-30 Motorola Inc. Device and method for detecting PCM upstream digital impairments in a communication network
US6201842B1 (en) * 1997-12-29 2001-03-13 Motorola Inc. Device and method for detecting PCM upstream digital impairments in a communication network
US6201836B1 (en) * 1999-01-20 2001-03-13 Motorola Inc. Method and apparatus for combining a Trellis coding scheme with a pre-coding scheme for data signals

Also Published As

Publication number Publication date
US6418170B1 (en) 2002-07-09
JP4834874B2 (ja) 2011-12-14
CN1652486B (zh) 2011-05-18
JP2003522470A (ja) 2003-07-22
EP1258091A1 (en) 2002-11-20
WO2001058059A1 (en) 2001-08-09
CA2399076A1 (en) 2001-08-09
CA2399076C (en) 2004-10-12
CN1398464A (zh) 2003-02-19
EP1258091A4 (en) 2005-10-26
KR20030007412A (ko) 2003-01-23
CN1290276C (zh) 2006-12-13
KR100787794B1 (ko) 2007-12-21
CN1652486A (zh) 2005-08-10

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