DE69708505D1 - Gemeinsames hybrides Faser/Koax-Netzwerk mit reduziertem Zugangsrauschen - Google Patents

Gemeinsames hybrides Faser/Koax-Netzwerk mit reduziertem Zugangsrauschen

Info

Publication number
DE69708505D1
DE69708505D1 DE69708505T DE69708505T DE69708505D1 DE 69708505 D1 DE69708505 D1 DE 69708505D1 DE 69708505 T DE69708505 T DE 69708505T DE 69708505 T DE69708505 T DE 69708505T DE 69708505 D1 DE69708505 D1 DE 69708505D1
Authority
DE
Germany
Prior art keywords
hybrid fiber
reduced access
coax network
common hybrid
access noise
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 - Fee Related
Application number
DE69708505T
Other languages
English (en)
Other versions
DE69708505T2 (de
Inventor
James E Dail
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
Application granted granted Critical
Publication of DE69708505D1 publication Critical patent/DE69708505D1/de
Publication of DE69708505T2 publication Critical patent/DE69708505T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • 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
    • H04L25/4919—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 balanced multilevel codes
    • H04L25/4921—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 balanced multilevel codes using quadrature encoding, e.g. carrierless amplitude-phase coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Optical Communication System (AREA)
  • Dc Digital Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Noise Elimination (AREA)
DE69708505T 1996-05-20 1997-05-20 Gemeinsames hybrides Faser/Koax-Netzwerk mit reduziertem Zugangsrauschen Expired - Fee Related DE69708505T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/650,683 US5765097A (en) 1996-05-20 1996-05-20 Shared hybrid fiber-coax network having reduced ingress noise in the upstream channel transmitted via a repeater

Publications (2)

Publication Number Publication Date
DE69708505D1 true DE69708505D1 (de) 2002-01-10
DE69708505T2 DE69708505T2 (de) 2002-07-18

Family

ID=24609870

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69708505T Expired - Fee Related DE69708505T2 (de) 1996-05-20 1997-05-20 Gemeinsames hybrides Faser/Koax-Netzwerk mit reduziertem Zugangsrauschen

Country Status (7)

Country Link
US (1) US5765097A (de)
EP (1) EP0809403B1 (de)
JP (1) JPH10107701A (de)
CA (1) CA2197262C (de)
DE (1) DE69708505T2 (de)
HK (1) HK1003535A1 (de)
TW (1) TW328666B (de)

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Also Published As

Publication number Publication date
US5765097A (en) 1998-06-09
TW328666B (en) 1998-03-21
HK1003535A1 (en) 1998-10-30
EP0809403B1 (de) 2001-11-28
DE69708505T2 (de) 2002-07-18
JPH10107701A (ja) 1998-04-24
EP0809403A2 (de) 1997-11-26
EP0809403A3 (de) 1999-01-20
CA2197262C (en) 2001-04-03
CA2197262A1 (en) 1997-11-21

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8339 Ceased/non-payment of the annual fee