CA2266618C - System and device for, and method of, processing baseband signals to combat isi and non-linearities in a communication system - Google Patents

System and device for, and method of, processing baseband signals to combat isi and non-linearities in a communication system Download PDF

Info

Publication number: CA2266618C
Authority: CA; Canada
Prior art keywords: signal; alphabet; octets; signals; line interface
Prior art date: 1996-09-24
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 - Fee Related

Application number

CA002266618A

Other languages

English (en)

French (fr)

Other versions

CA2266618A1 (en

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.)

1996-09-24

Filing date

1997-09-23

Publication date

2004-07-06

1997-09-23 Application filed by Motorola Inc filed Critical Motorola Inc

1998-04-02 Publication of CA2266618A1 publication Critical patent/CA2266618A1/en

2004-07-06 Application granted granted Critical

2004-07-06 Publication of CA2266618C publication Critical patent/CA2266618C/en

2017-09-23 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 40
238000004891 communication Methods 0.000 title claims abstract description 26
238000012545 processing Methods 0.000 title abstract description 5
238000013139 quantization Methods 0.000 claims abstract description 35
238000012935 Averaging Methods 0.000 claims abstract description 4
230000005540 biological transmission Effects 0.000 claims description 24
238000005070 sampling Methods 0.000 claims description 17
230000009466 transformation Effects 0.000 claims description 5
238000011084 recovery Methods 0.000 claims description 3
230000003252 repetitive effect Effects 0.000 claims 1
230000007246 mechanism Effects 0.000 abstract description 8
230000011664 signaling Effects 0.000 description 7
230000006870 function Effects 0.000 description 5
238000010586 diagram Methods 0.000 description 4
230000000694 effects Effects 0.000 description 4
238000007493 shaping process Methods 0.000 description 4
230000008901 benefit Effects 0.000 description 3
238000001514 detection method Methods 0.000 description 3
230000008569 process Effects 0.000 description 3
230000004044 response Effects 0.000 description 3
230000003044 adaptive effect Effects 0.000 description 2
238000013459 approach Methods 0.000 description 2
230000008859 change Effects 0.000 description 2
238000013461 design Methods 0.000 description 2
230000000116 mitigating effect Effects 0.000 description 2
230000009131 signaling function Effects 0.000 description 2
230000003595 spectral effect Effects 0.000 description 2
238000012549 training Methods 0.000 description 2
238000007476 Maximum Likelihood Methods 0.000 description 1
241000252067 Megalops atlanticus Species 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
230000004075 alteration Effects 0.000 description 1
230000006735 deficit Effects 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
239000000463 material Substances 0.000 description 1
238000001228 spectrum Methods 0.000 description 1

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)

CA002266618A 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 Expired - Fee Related CA2266618C (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
US2668696P	1996-09-24	1996-09-24
US60/026,686		1996-09-24
US72098896A	1996-10-15	1996-10-15
US08/720,988		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 (2)

Publication Number	Publication Date
CA2266618A1 CA2266618A1 (en)	1998-04-02
CA2266618C true CA2266618C (en)	2004-07-06

Family

ID=26701544

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002266618A Expired - Fee Related CA2266618C (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

Country Status (5)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4291410B2 (ja)	1994-12-09	2009-07-08	ブレントタウンシェンド、	高速データ転送エンコーダ、デコーダ、システム、エンコード方法および復号方法
US6233275B1 (en)	1994-12-09	2001-05-15	Brent Townshend	High speed communications system for analog subscriber connections
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 (de) *	1998-11-10	2000-05-17	Siemens Aktiengesellschaft	Verfahren und Vorrichtung zur Bestimmung der Eigenschaften eines Übertragungskanals
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 (de) *	1994-04-08	2001-09-26	Nec Corporation	Adaptive Einstellung von Entscheidungspegeln
JP4291410B2 (ja) *	1994-12-09	2009-07-08	ブレントタウンシェンド、	高速データ転送エンコーダ、デコーダ、システム、エンコード方法および復号方法
US5659579A (en) *	1995-02-01	1997-08-19	Lucent Technologies Inc.	Multilevel coding for fractional bits

1997
- 1997-09-23 DE DE19782004T patent/DE19782004T1/de not_active Withdrawn
- 1997-09-23 AU AU47366/97A patent/AU4736697A/en not_active Abandoned
- 1997-09-23 CA CA002266618A patent/CA2266618C/en not_active Expired - Fee Related
- 1997-09-23 GB GB9905774A patent/GB2332605B/en not_active Expired - Fee Related
- 1997-09-23 WO PCT/US1997/016909 patent/WO1998013979A1/en not_active Ceased

Also Published As

Publication number	Publication date
WO1998013979A1 (en)	1998-04-02
GB2332605A (en)	1999-06-23
GB9905774D0 (en)	1999-05-05
CA2266618A1 (en)	1998-04-02
GB2332605B (en)	2001-05-16
DE19782004T1 (de)	1999-09-09
AU4736697A (en)	1998-04-17

Legal Events

Date	Code	Title	Description
1999-03-24	EEER	Examination request
2007-09-24	MKLA	Lapsed

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EP1124359B1 (de)	2017-04-26	Laroia-Tretter-Farvardin-Vorkodierer für PCM-Modems
CA2266618C (en)	2004-07-06	System and device for, and method of, processing baseband signals to combat isi and non-linearities in a communication system
EP0880838B1 (de)	2003-04-16	Verfahren zur übertragung nach einer trelliskode, die aus einer festen menge basisbandsignalpunkte gewählt wird
WO1998032257A1 (en)	1998-07-23	System and device for, and method of, communicating according to a composite code
EP1214820B1 (de)	2009-03-25	Pcm-modem mit vorkodierung und vorentzerrung
EP1363431B1 (de)	2018-11-14	Konstellationsentwurf für PCM -Aufwärtsmodulation
EP1370037A2 (de)	2003-12-10	Aufwärtsgerichteter PCM Datenübertragungsserver
US7031416B2 (en)	2006-04-18	Deterministic distortion insensitive adaptive receiver using decision updating
GB2358323A (en)	2001-07-18	Distortion in a communication system
Jackson et al.	1999	Literature Survey on HDSL2 Modem Modeling and Simulation
JP2001318697A (ja)	2001-11-16	アップストリーム音声帯域モデムチャネルの一般化されたプリコーダ