BE1003361A4 - Systeme de communication bidirectionnelle par cables. - Google Patents

Systeme de communication bidirectionnelle par cables. Download PDF

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Publication number
BE1003361A4
BE1003361A4 BE8801227A BE8801227A BE1003361A4 BE 1003361 A4 BE1003361 A4 BE 1003361A4 BE 8801227 A BE8801227 A BE 8801227A BE 8801227 A BE8801227 A BE 8801227A BE 1003361 A4 BE1003361 A4 BE 1003361A4
Authority
BE
Belgium
Prior art keywords
communication system
head
subscriber stations
network
cable communication
Prior art date
Application number
BE8801227A
Other languages
English (en)
Inventor
Michel Dufresne
Dave Gregory
Alain Tessier
Samir Sammoun
Jean-Paul Champagne
Pierre Scott
Francois Methot
Original Assignee
Videotron Ltd
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 Videotron Ltd filed Critical Videotron Ltd
Application granted granted Critical
Publication of BE1003361A4 publication Critical patent/BE1003361A4/fr

Links

Classifications

    • 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
    • H04N7/17336—Handling of requests in head-ends
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2801—Broadband local area networks
    • 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
    • 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
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • 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
    • H04N2007/17381—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream transmission being initiated by the user terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)

Abstract

Il comprend une tête de réseau (1), un réseau de transmission bidirectionnelle relié à la tête de réseau (1) pour transmettre des signaux aval vers une pluralité de postes d'abonnés (4) et pour transmettre des signaux de données amont vers la tête de réseau (1) à partir des postes d'abonnés (4). Il comprend encore, à la tête de réseau (1), un moyen de détection de collisions (12) entre les signaux reçus des postes d'abonnés (4) et de génération d'un signal de collision, un moyen de transmission aval de bits d'état de collision et dont la détection dans un poste d'abonné peut entraîner l'arrêt de la transmission.
BE8801227A 1987-11-02 1988-10-25 Systeme de communication bidirectionnelle par cables. BE1003361A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000550764A CA1317667C (fr) 1987-11-02 1987-11-02 Commande de transmission pour terminal d'abonne de stac

Publications (1)

Publication Number Publication Date
BE1003361A4 true BE1003361A4 (fr) 1992-03-10

Family

ID=4136768

Family Applications (1)

Application Number Title Priority Date Filing Date
BE8801227A BE1003361A4 (fr) 1987-11-02 1988-10-25 Systeme de communication bidirectionnelle par cables.

Country Status (9)

Country Link
US (1) US4920533A (fr)
JP (1) JPH0666797B2 (fr)
BE (1) BE1003361A4 (fr)
CA (1) CA1317667C (fr)
CH (1) CH677993A5 (fr)
DE (1) DE3837069A1 (fr)
FR (1) FR2622756B1 (fr)
GB (1) GB2212034B (fr)
NL (1) NL8802668A (fr)

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EP0140475A1 (fr) * 1983-07-18 1985-05-08 University of Illinois Communication avec accès multiple en canal de transmission de retour dans une installation de télévision par antenne collective
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GB1523753A (en) * 1974-09-16 1978-09-06 Rai Radiotelevisione Italiana Two-way data transmission system for cable television network
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Also Published As

Publication number Publication date
CA1317667C (fr) 1993-05-11
US4920533A (en) 1990-04-24
GB2212034B (en) 1992-07-08
JPH01282982A (ja) 1989-11-14
FR2622756A1 (fr) 1989-05-05
CH677993A5 (fr) 1991-07-15
FR2622756B1 (fr) 1995-08-04
GB8824857D0 (en) 1988-11-30
GB2212034A (en) 1989-07-12
NL8802668A (nl) 1989-06-01
DE3837069A1 (de) 1989-06-01
JPH0666797B2 (ja) 1994-08-24
DE3837069C2 (fr) 1991-04-11

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: VIDEOTRON LTEE

Effective date: 19981031