CA2136141A1 - Method and system for scheduling the transfer of data sequences - Google Patents

Method and system for scheduling the transfer of data sequences

Info

Publication number
CA2136141A1
CA2136141A1 CA002136141A CA2136141A CA2136141A1 CA 2136141 A1 CA2136141 A1 CA 2136141A1 CA 002136141 A CA002136141 A CA 002136141A CA 2136141 A CA2136141 A CA 2136141A CA 2136141 A1 CA2136141 A1 CA 2136141A1
Authority
CA
Canada
Prior art keywords
data
bandwidth
storage devices
scheduling
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
CA002136141A
Other languages
French (fr)
Other versions
CA2136141C (en
Inventor
Robert P. Fitzgerald
Joseph S. Barrera, Iii
William J. Bolosky
Richard P. Draves, Jr.
Michael B. Jones
Steven P. Levi
Nathan P. Myhrvold
Richard F. Rashid
Garth A. Gibson
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.)
Microsoft Technology Licensing LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2136141A1 publication Critical patent/CA2136141A1/en
Application granted granted Critical
Publication of CA2136141C publication Critical patent/CA2136141C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • 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
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17336—Handling of requests in head-ends

Abstract

A scalable method and system for easily scheduling data transfer or a a video-on-demand server system is provided. A strategy for locating available bandwidth and allocating available bandwidth to subscribers as needed is provided. The input/output bandwidth of storage devices that store data for video image sequences is modelled as a series of bandwidth units. Each bandwidth unit has sufficient capacity to service an individual subscriber during a scheduling cycle. Video image sequences or other data sequences are striped across storage devices such that data for a data sequence is forwarded to the subscriber by reading from a sequence of storage devices in consecutive time frames.
CA002136141A 1993-11-30 1994-11-18 Method and system for scheduling the transfer of data sequences Expired - Lifetime CA2136141C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/159,188 US5473362A (en) 1993-11-30 1993-11-30 Video on demand system comprising stripped data across plural storable devices with time multiplex scheduling
US08/159,188 1993-11-30

Publications (2)

Publication Number Publication Date
CA2136141A1 true CA2136141A1 (en) 1995-05-31
CA2136141C CA2136141C (en) 2001-04-10

Family

ID=22571464

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002136141A Expired - Lifetime CA2136141C (en) 1993-11-30 1994-11-18 Method and system for scheduling the transfer of data sequences

Country Status (5)

Country Link
US (1) US5473362A (en)
EP (1) EP0655865B1 (en)
JP (2) JP3816117B2 (en)
CA (1) CA2136141C (en)
DE (1) DE69416270T2 (en)

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Also Published As

Publication number Publication date
US5473362A (en) 1995-12-05
JPH07202828A (en) 1995-08-04
DE69416270D1 (en) 1999-03-11
JP2006180537A (en) 2006-07-06
CA2136141C (en) 2001-04-10
EP0655865B1 (en) 1999-01-27
JP3816117B2 (en) 2006-08-30
DE69416270T2 (en) 1999-06-02
EP0655865A1 (en) 1995-05-31

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