DE69427577D1 - Für digitale Teilnehmerleitungen gegeignetes Modem - Google Patents

Für digitale Teilnehmerleitungen gegeignetes Modem

Info

Publication number
DE69427577D1
DE69427577D1 DE69427577T DE69427577T DE69427577D1 DE 69427577 D1 DE69427577 D1 DE 69427577D1 DE 69427577 T DE69427577 T DE 69427577T DE 69427577 T DE69427577 T DE 69427577T DE 69427577 D1 DE69427577 D1 DE 69427577D1
Authority
DE
Germany
Prior art keywords
digital subscriber
subscriber lines
modem suitable
modem
lines
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.)
Expired - Lifetime
Application number
DE69427577T
Other languages
English (en)
Other versions
DE69427577T2 (de
Inventor
Ender Ayanoglu
Glenn David Golden
Raymond K Jones
James Emery Mazo
David Goodwin Shaw
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Publication of DE69427577D1 publication Critical patent/DE69427577D1/de
Application granted granted Critical
Publication of DE69427577T2 publication Critical patent/DE69427577T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
DE69427577T 1994-01-03 1994-12-14 Für digitale Teilnehmerleitungen gegeignetes Modem Expired - Lifetime DE69427577T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/176,742 US5528625A (en) 1994-01-03 1994-01-03 High speed quantization-level-sampling modem with equalization arrangement

Publications (2)

Publication Number Publication Date
DE69427577D1 true DE69427577D1 (de) 2001-08-02
DE69427577T2 DE69427577T2 (de) 2002-05-29

Family

ID=22645651

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69427577T Expired - Lifetime DE69427577T2 (de) 1994-01-03 1994-12-14 Für digitale Teilnehmerleitungen gegeignetes Modem

Country Status (5)

Country Link
US (1) US5528625A (de)
EP (1) EP0669740B1 (de)
JP (1) JP3172382B2 (de)
CA (1) CA2136887C (de)
DE (1) DE69427577T2 (de)

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Also Published As

Publication number Publication date
EP0669740B1 (de) 2001-06-27
JP3172382B2 (ja) 2001-06-04
US5528625A (en) 1996-06-18
EP0669740A2 (de) 1995-08-30
JPH07226719A (ja) 1995-08-22
EP0669740A3 (de) 1998-03-18
DE69427577T2 (de) 2002-05-29
CA2136887C (en) 1998-12-29
CA2136887A1 (en) 1995-07-04

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