DE19782004T1 - Method of forming an actual alphabet of symbols to be used in a communication system, adapter usable in a communication system, and communication system - Google Patents

Method of forming an actual alphabet of symbols to be used in a communication system, adapter usable in a communication system, and communication system

Info

Publication number
DE19782004T1
DE19782004T1 DE19782004T DE19782004T DE19782004T1 DE 19782004 T1 DE19782004 T1 DE 19782004T1 DE 19782004 T DE19782004 T DE 19782004T DE 19782004 T DE19782004 T DE 19782004T DE 19782004 T1 DE19782004 T1 DE 19782004T1
Authority
DE
Germany
Prior art keywords
communication system
symbols
forming
adapter usable
actual alphabet
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.)
Withdrawn
Application number
DE19782004T
Other languages
German (de)
Inventor
M Vedat Eyuboglu
Pierre A Humblet
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 DE19782004T1 publication Critical patent/DE19782004T1/en
Withdrawn legal-status Critical Current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
    • 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE19782004T 1996-09-24 1997-09-23 Method of forming an actual alphabet of symbols to be used in a communication system, adapter usable in a communication system, and communication system Withdrawn DE19782004T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2668696P 1996-09-24 1996-09-24
US72098896A 1996-10-15 1996-10-15
PCT/US1997/016909 WO1998013979A1 (en) 1996-09-24 1997-09-23 System and device for, and method of, processing baseband signals to combat isi and non-linearities in a communication system

Publications (1)

Publication Number Publication Date
DE19782004T1 true DE19782004T1 (en) 1999-09-09

Family

ID=26701544

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782004T Withdrawn DE19782004T1 (en) 1996-09-24 1997-09-23 Method of forming an actual alphabet of symbols to be used in a communication system, adapter usable in a communication system, and communication system

Country Status (5)

Country Link
AU (1) AU4736697A (en)
CA (1) CA2266618C (en)
DE (1) DE19782004T1 (en)
GB (1) GB2332605B (en)
WO (1) WO1998013979A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6233275B1 (en) 1994-12-09 2001-05-15 Brent Townshend High speed communications system for analog subscriber connections
CA2266904C (en) 1994-12-09 2002-04-02 Brent Townshend High speed decoder and decoding method
US6480549B1 (en) * 1997-04-08 2002-11-12 Vocal Technologies, Ltd. Method for determining attenuation in a digital PCM channel
US5831561A (en) * 1997-04-29 1998-11-03 Lucent Technologies Inc. System and method for dynamically optimizing a symbol table and modem employing the same
EP1001579A1 (en) 1998-11-10 2000-05-17 Siemens Aktiengesellschaft Method and apparatus for determining properties of a signal transmission channel
US6504865B1 (en) * 1999-02-24 2003-01-07 Altocom, Inc. Digital connection detection technique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040191A (en) * 1987-02-24 1991-08-13 Codex Corporation Partial response channel signaling systems
US5394437A (en) * 1992-10-20 1995-02-28 At&T Corp. High-speed modem synchronized to a remote CODEC
US5528625A (en) * 1994-01-03 1996-06-18 At&T Corp. High speed quantization-level-sampling modem with equalization arrangement
EP0678999B1 (en) * 1994-04-08 2001-09-26 Nec Corporation Adaptive setting of decision thresholds
CA2266904C (en) * 1994-12-09 2002-04-02 Brent Townshend High speed decoder and decoding method
US5659579A (en) * 1995-02-01 1997-08-19 Lucent Technologies Inc. Multilevel coding for fractional bits

Also Published As

Publication number Publication date
CA2266618C (en) 2004-07-06
WO1998013979A1 (en) 1998-04-02
GB9905774D0 (en) 1999-05-05
GB2332605A (en) 1999-06-23
GB2332605B (en) 2001-05-16
AU4736697A (en) 1998-04-17
CA2266618A1 (en) 1998-04-02

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: H04L 25/49

8128 New person/name/address of the agent

Representative=s name: SCHUMACHER & WILLSAU, PATENTANWALTSSOZIETAET, 8033

8139 Disposal/non-payment of the annual fee