HK1003535A1 - Shared hybrid fiber-coax network having reduced ingress noise - Google Patents

Shared hybrid fiber-coax network having reduced ingress noise

Info

Publication number
HK1003535A1
HK1003535A1 HK98102684A HK98102684A HK1003535A1 HK 1003535 A1 HK1003535 A1 HK 1003535A1 HK 98102684 A HK98102684 A HK 98102684A HK 98102684 A HK98102684 A HK 98102684A HK 1003535 A1 HK1003535 A1 HK 1003535A1
Authority
HK
Hong Kong
Prior art keywords
hybrid fiber
ingress noise
coax network
shared hybrid
reduced ingress
Prior art date
Application number
HK98102684A
Other languages
English (en)
Inventor
James E Dail
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 HK1003535A1 publication Critical patent/HK1003535A1/xx

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)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (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)
HK98102684A 1996-05-20 1998-03-30 Shared hybrid fiber-coax network having reduced ingress noise HK1003535A1 (en)

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 (1)

Publication Number Publication Date
HK1003535A1 true HK1003535A1 (en) 1998-10-30

Family

ID=24609870

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98102684A HK1003535A1 (en) 1996-05-20 1998-03-30 Shared hybrid fiber-coax network having reduced ingress noise

Country Status (7)

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

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Also Published As

Publication number Publication date
EP0809403A3 (en) 1999-01-20
DE69708505D1 (de) 2002-01-10
JPH10107701A (ja) 1998-04-24
EP0809403A2 (en) 1997-11-26
EP0809403B1 (en) 2001-11-28
DE69708505T2 (de) 2002-07-18
CA2197262A1 (en) 1997-11-21
US5765097A (en) 1998-06-09
CA2197262C (en) 2001-04-03
TW328666B (en) 1998-03-21

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20160520