GB2422754B - Digital multicast system - Google Patents

Digital multicast system

Info

Publication number
GB2422754B
GB2422754B GB0501546A GB0501546A GB2422754B GB 2422754 B GB2422754 B GB 2422754B GB 0501546 A GB0501546 A GB 0501546A GB 0501546 A GB0501546 A GB 0501546A GB 2422754 B GB2422754 B GB 2422754B
Authority
GB
United Kingdom
Prior art keywords
multicast system
digital multicast
digital
multicast
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.)
Active
Application number
GB0501546A
Other versions
GB2422754A (en
GB0501546D0 (en
Inventor
Wai Kin Lee
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.)
PCCW HKT Datacom Services Ltd
Original Assignee
PCCW HKT Datacom Services 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 PCCW HKT Datacom Services Ltd filed Critical PCCW HKT Datacom Services Ltd
Priority to GB0501546A priority Critical patent/GB2422754B/en
Publication of GB0501546D0 publication Critical patent/GB0501546D0/en
Publication of GB2422754A publication Critical patent/GB2422754A/en
Priority to HK06110122A priority patent/HK1089012A1/en
Application granted granted Critical
Publication of GB2422754B publication Critical patent/GB2422754B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/106—Adaptations for transmission by electrical cable for domestic distribution
    • 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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • 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
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • 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
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
GB0501546A 2005-01-27 2005-01-27 Digital multicast system Active GB2422754B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0501546A GB2422754B (en) 2005-01-27 2005-01-27 Digital multicast system
HK06110122A HK1089012A1 (en) 2005-01-27 2006-09-12 Digital multicast system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0501546A GB2422754B (en) 2005-01-27 2005-01-27 Digital multicast system

Publications (3)

Publication Number Publication Date
GB0501546D0 GB0501546D0 (en) 2005-03-02
GB2422754A GB2422754A (en) 2006-08-02
GB2422754B true GB2422754B (en) 2007-04-04

Family

ID=34259657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0501546A Active GB2422754B (en) 2005-01-27 2005-01-27 Digital multicast system

Country Status (2)

Country Link
GB (1) GB2422754B (en)
HK (1) HK1089012A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031986A2 (en) * 2006-09-12 2008-03-20 France Telecom Method and device for controlling action on a continuous data stream, and user digital channel multiplexer using it

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5003384A (en) * 1988-04-01 1991-03-26 Scientific Atlanta, Inc. Set-top interface transactions in an impulse pay per view television system
US5594794A (en) * 1994-10-18 1997-01-14 General Instrument Corporation Of Delaware Method and apparatus for free previews of communication network services
WO1999012353A1 (en) * 1997-09-02 1999-03-11 Nec Australia Pty. Ltd. A distribution system
US6020883A (en) * 1994-11-29 2000-02-01 Fred Herz System and method for scheduling broadcast of and access to video programs and other data using customer profiles
WO2001067763A1 (en) * 2000-03-06 2001-09-13 Artemedia Ag Selective supply of media objects by an operator
US20020172368A1 (en) * 2000-10-26 2002-11-21 General Instrument, Inc. Intial free preview for multimedia multicast content
EP1301039A2 (en) * 2001-09-07 2003-04-09 Matsushita Electric Industrial Co., Ltd. A video distribution device and a video receiving device
GB2394380A (en) * 2001-08-16 2004-04-21 Goldpocket Interactive Content rating advisory and profiling system for interactive television

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5003384A (en) * 1988-04-01 1991-03-26 Scientific Atlanta, Inc. Set-top interface transactions in an impulse pay per view television system
US5594794A (en) * 1994-10-18 1997-01-14 General Instrument Corporation Of Delaware Method and apparatus for free previews of communication network services
US6020883A (en) * 1994-11-29 2000-02-01 Fred Herz System and method for scheduling broadcast of and access to video programs and other data using customer profiles
WO1999012353A1 (en) * 1997-09-02 1999-03-11 Nec Australia Pty. Ltd. A distribution system
WO2001067763A1 (en) * 2000-03-06 2001-09-13 Artemedia Ag Selective supply of media objects by an operator
US20020172368A1 (en) * 2000-10-26 2002-11-21 General Instrument, Inc. Intial free preview for multimedia multicast content
GB2394380A (en) * 2001-08-16 2004-04-21 Goldpocket Interactive Content rating advisory and profiling system for interactive television
EP1301039A2 (en) * 2001-09-07 2003-04-09 Matsushita Electric Industrial Co., Ltd. A video distribution device and a video receiving device

Also Published As

Publication number Publication date
HK1089012A1 (en) 2006-11-17
GB2422754A (en) 2006-08-02
GB0501546D0 (en) 2005-03-02

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