SE515760C2 - Förbättringar av eller avseende dataöverföring - Google Patents

Förbättringar av eller avseende dataöverföring

Info

Publication number
SE515760C2
SE515760C2 SE9603532A SE9603532A SE515760C2 SE 515760 C2 SE515760 C2 SE 515760C2 SE 9603532 A SE9603532 A SE 9603532A SE 9603532 A SE9603532 A SE 9603532A SE 515760 C2 SE515760 C2 SE 515760C2
Authority
SE
Sweden
Prior art keywords
analog
pcm
modem
data
series
Prior art date
Application number
SE9603532A
Other languages
English (en)
Swedish (sv)
Other versions
SE9603532D0 (sv
SE9603532L (sv
Inventor
Magnus Krampell
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Priority to SE9603532A priority Critical patent/SE515760C2/sv
Publication of SE9603532D0 publication Critical patent/SE9603532D0/xx
Priority to EP97850128A priority patent/EP0833481A1/en
Priority to NO19974242A priority patent/NO326294B1/no
Publication of SE9603532L publication Critical patent/SE9603532L/
Publication of SE515760C2 publication Critical patent/SE515760C2/sv

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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
SE9603532A 1996-09-27 1996-09-27 Förbättringar av eller avseende dataöverföring SE515760C2 (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9603532A SE515760C2 (sv) 1996-09-27 1996-09-27 Förbättringar av eller avseende dataöverföring
EP97850128A EP0833481A1 (en) 1996-09-27 1997-09-05 Communications system employing quantisation-level-sampling modem
NO19974242A NO326294B1 (no) 1996-09-27 1997-09-15 Fremgangsmate og system for overforing av data over telefonnett

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9603532A SE515760C2 (sv) 1996-09-27 1996-09-27 Förbättringar av eller avseende dataöverföring

Publications (3)

Publication Number Publication Date
SE9603532D0 SE9603532D0 (sv) 1996-09-27
SE9603532L SE9603532L (sv) 1998-03-28
SE515760C2 true SE515760C2 (sv) 2001-10-08

Family

ID=20404051

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9603532A SE515760C2 (sv) 1996-09-27 1996-09-27 Förbättringar av eller avseende dataöverföring

Country Status (3)

Country Link
EP (1) EP0833481A1 (no)
NO (1) NO326294B1 (no)
SE (1) SE515760C2 (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6480549B1 (en) 1997-04-08 2002-11-12 Vocal Technologies, Ltd. Method for determining attenuation in a digital PCM channel
EP0977410B1 (en) * 1998-07-30 2003-02-19 Infineon Technologies AG Method for generating PCM code sets
EP1001579A1 (en) * 1998-11-10 2000-05-17 Siemens Aktiengesellschaft Method and apparatus for determining properties of a signal transmission channel
DE19958111B4 (de) * 1999-12-02 2006-02-02 Infineon Technologies Ag Verfahren zur Datenübertragung über mehrere parallele Datenübertragungsverbindungen
MA28059A1 (fr) * 2005-01-26 2006-08-01 Bouazzaoui Majid El Telephone mobile permettant de communiquer avec la voix et les images video

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995057A (en) * 1988-11-02 1991-02-19 At&T Bell Laboratories Technique for achieving the theoretical coding gain of digital signals incorporating error correction
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
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
FR2740286B1 (fr) * 1995-10-23 1998-01-02 Inst Eurecom Dispositif et procede de communication hybride numerique- analogique sur un canal telephonique

Also Published As

Publication number Publication date
NO974242L (no) 1998-03-30
EP0833481A1 (en) 1998-04-01
SE9603532D0 (sv) 1996-09-27
NO326294B1 (no) 2008-11-03
NO974242D0 (no) 1997-09-15
SE9603532L (sv) 1998-03-28

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Legal Events

Date Code Title Description
NUG Patent has lapsed