CA2149480A1 - Semiconductor memory based server for providing multimedia information on demand over wide area networks - Google Patents

Semiconductor memory based server for providing multimedia information on demand over wide area networks

Info

Publication number
CA2149480A1
CA2149480A1 CA002149480A CA2149480A CA2149480A1 CA 2149480 A1 CA2149480 A1 CA 2149480A1 CA 002149480 A CA002149480 A CA 002149480A CA 2149480 A CA2149480 A CA 2149480A CA 2149480 A1 CA2149480 A1 CA 2149480A1
Authority
CA
Canada
Prior art keywords
data
semiconductor memory
wide area
area networks
switches
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
CA002149480A
Other languages
French (fr)
Other versions
CA2149480C (en
Inventor
Jack L. Kouloheris
Manoj Kumar
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2149480A1 publication Critical patent/CA2149480A1/en
Application granted granted Critical
Publication of CA2149480C publication Critical patent/CA2149480C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • 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

Abstract

A method and apparatus for delivering multimedia video data from a server (host processor) to a plurality of clients connected to a communications network. More specifically, with this invention, preprocessed video and multimedia data packets are stored in switches of the network. When a client desires to receive the video and multimedia data, sends a request to the host processor which in turn sends a control message to the switches storing the requested data. These switches in turn send the requested data to the requesting client. If the data is not stored in the switches, the data must then be forwarded directly from the server to the requesting client.
CA002149480A 1994-08-23 1995-05-16 Semiconductor memory based server for providing multimedia information on demand over wide area networks Expired - Fee Related CA2149480C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29467394A 1994-08-23 1994-08-23
US294,673 1994-08-23

Publications (2)

Publication Number Publication Date
CA2149480A1 true CA2149480A1 (en) 1996-02-24
CA2149480C CA2149480C (en) 2003-10-14

Family

ID=23134436

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002149480A Expired - Fee Related CA2149480C (en) 1994-08-23 1995-05-16 Semiconductor memory based server for providing multimedia information on demand over wide area networks

Country Status (10)

Country Link
US (1) US5758085A (en)
EP (1) EP0698982B1 (en)
JP (1) JP3730686B2 (en)
KR (1) KR100209834B1 (en)
CN (1) CN1134934C (en)
AT (1) ATE235128T1 (en)
BR (1) BR9503452A (en)
CA (1) CA2149480C (en)
DE (1) DE69529948T2 (en)
TW (1) TW252248B (en)

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US7068670B2 (en) 2001-01-27 2006-06-27 Mitel Networks Corporation Transport protocols for application platforms over network portals

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Also Published As

Publication number Publication date
KR100209834B1 (en) 1999-07-15
US5758085A (en) 1998-05-26
EP0698982A3 (en) 1998-04-15
TW252248B (en) 1995-07-21
CN1134934C (en) 2004-01-14
EP0698982A2 (en) 1996-02-28
JP3730686B2 (en) 2006-01-05
ATE235128T1 (en) 2003-04-15
EP0698982B1 (en) 2003-03-19
JPH0884143A (en) 1996-03-26
DE69529948D1 (en) 2003-04-24
BR9503452A (en) 1996-05-28
CA2149480C (en) 2003-10-14
CN1118959A (en) 1996-03-20
DE69529948T2 (en) 2003-12-11

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