CA2174267A1 - Apparatus and Method for Combining High Bandwidth and Low Bandwidth Data Transfer - Google Patents

Apparatus and Method for Combining High Bandwidth and Low Bandwidth Data Transfer

Info

Publication number
CA2174267A1
CA2174267A1 CA2174267A CA2174267A CA2174267A1 CA 2174267 A1 CA2174267 A1 CA 2174267A1 CA 2174267 A CA2174267 A CA 2174267A CA 2174267 A CA2174267 A CA 2174267A CA 2174267 A1 CA2174267 A1 CA 2174267A1
Authority
CA
Canada
Prior art keywords
information source
bandwidth channel
low bandwidth
channel
data transfer
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.)
Granted
Application number
CA2174267A
Other languages
French (fr)
Other versions
CA2174267C (en
Inventor
Daniel J. Carr
Eric L. Edberg
Venkata Chalapathi Majeti
John Leonard Shepherd
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 IPM 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 IPM Corp filed Critical AT&T IPM Corp
Publication of CA2174267A1 publication Critical patent/CA2174267A1/en
Application granted granted Critical
Publication of CA2174267C publication Critical patent/CA2174267C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H04H20/77—Wired systems using carrier waves
    • H04H20/78—CATV [Community Antenna Television] systems
    • H04H20/79—CATV [Community Antenna Television] systems using downlink of the CATV systems, e.g. audio broadcast via CATV network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/76—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet
    • H04H60/81—Arrangements characterised by transmission systems other than for broadcast, e.g. the Internet characterised by the transmission system itself
    • H04H60/93—Wired transmission systems
    • H04H60/94—Telephonic networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/14—Channel dividing arrangements, i.e. in which a single bit stream is divided between several baseband channels and reassembled at the receiver
    • 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
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving

Abstract

Data communications apparatus and methods employing a bidirectional lowbandwidth channel and a unidirectional high bandwidth channel. A PC is coupled to an information source by a communications system which provides both a bidirectional low bandwidth channel between the PC and the information source and a high bandwidth channel in which the information source is the source and the PC is the sink. A component of the communications system termed the director responds to a message received in the low bandwidth channel by switching the information being sent from the information source to the PC to the high or low bandwidth channel as specified in the message. The message may come either from the PC or the information source. A graphical user interface at the PC provides the user with "buttons" to specify the bandwidth. The apparatus and methods may be advantageously employed to provide telecommuting services.
CA002174267A 1995-05-09 1996-04-16 Apparatus and method for combining high bandwidth and low bandwidth data transfer Expired - Fee Related CA2174267C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/437,349 US5608446A (en) 1994-03-31 1995-05-09 Apparatus and method for combining high bandwidth and low bandwidth data transfer
US437,349 1995-05-09

Publications (2)

Publication Number Publication Date
CA2174267A1 true CA2174267A1 (en) 1996-11-10
CA2174267C CA2174267C (en) 1999-12-07

Family

ID=23736070

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002174267A Expired - Fee Related CA2174267C (en) 1995-05-09 1996-04-16 Apparatus and method for combining high bandwidth and low bandwidth data transfer

Country Status (6)

Country Link
US (1) US5608446A (en)
EP (1) EP0742657A2 (en)
CN (1) CN1145565A (en)
CA (1) CA2174267C (en)
SG (1) SG42401A1 (en)
TW (1) TW345787B (en)

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