WO2008121545A3 - Switched digital video client reverse channel traffic reduction - Google Patents

Switched digital video client reverse channel traffic reduction Download PDF

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Publication number
WO2008121545A3
WO2008121545A3 PCT/US2008/057297 US2008057297W WO2008121545A3 WO 2008121545 A3 WO2008121545 A3 WO 2008121545A3 US 2008057297 W US2008057297 W US 2008057297W WO 2008121545 A3 WO2008121545 A3 WO 2008121545A3
Authority
WO
WIPO (PCT)
Prior art keywords
sdv
digital video
reverse
switched digital
request
Prior art date
Application number
PCT/US2008/057297
Other languages
French (fr)
Other versions
WO2008121545A2 (en
Inventor
Kanthimathi Gayatri Sukumar
Balaprakash Sivaprakasam
L Gnanendra Satish
Jason C Osborne
Original Assignee
Scientific Atlanta
Kanthimathi Gayatri Sukumar
Balaprakash Sivaprakasam
L Gnanendra Satish
Jason C Osborne
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 Scientific Atlanta, Kanthimathi Gayatri Sukumar, Balaprakash Sivaprakasam, L Gnanendra Satish, Jason C Osborne filed Critical Scientific Atlanta
Priority to EP08743986A priority Critical patent/EP2137968A2/en
Priority to CA2680851A priority patent/CA2680851C/en
Publication of WO2008121545A2 publication Critical patent/WO2008121545A2/en
Publication of WO2008121545A3 publication Critical patent/WO2008121545A3/en

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
    • H04N7/17327—Transmission or handling of upstream communications with deferred transmission or handling of upstream communications
    • 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
    • H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
    • H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
    • 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
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Systems and methods are disclosed for enabling a switched digital video (SDV) client to intelligently generate and transmit reverse request in a SDV system. In this manner, reverse channel traffic is reduced. During rapid channel changes using the up and down keys on a remote control, the SDV client waits a predetermined amount of time before generating a reverse request that is subsequently transmitted upstream to a headend server. By way of example, changing broadcasted channels quickly will not generate a reverse request until the predetermined amount of time is over. In the event that a changed channel is an SDV session, a program select request is immediately generated in order to begin receiving the SDV session.
PCT/US2008/057297 2007-03-28 2008-03-18 Switched digital video client reverse channel traffic reduction WO2008121545A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08743986A EP2137968A2 (en) 2007-03-28 2008-03-18 Switched digital video client reverse channel traffic reduction
CA2680851A CA2680851C (en) 2007-03-28 2008-03-18 Switched digital video client reverse channel traffic reduction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/692,457 2007-03-28
US11/692,457 US8370889B2 (en) 2007-03-28 2007-03-28 Switched digital video client reverse channel traffic reduction

Publications (2)

Publication Number Publication Date
WO2008121545A2 WO2008121545A2 (en) 2008-10-09
WO2008121545A3 true WO2008121545A3 (en) 2008-12-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/057297 WO2008121545A2 (en) 2007-03-28 2008-03-18 Switched digital video client reverse channel traffic reduction

Country Status (4)

Country Link
US (1) US8370889B2 (en)
EP (1) EP2137968A2 (en)
CA (1) CA2680851C (en)
WO (1) WO2008121545A2 (en)

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US8370889B2 (en) 2013-02-05
US20080244679A1 (en) 2008-10-02

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