WO2002067501A2 - Method and device for simultaneous multipoint distributing of video, voice and data - Google Patents
Method and device for simultaneous multipoint distributing of video, voice and data Download PDFInfo
- Publication number
- WO2002067501A2 WO2002067501A2 PCT/IL2002/000118 IL0200118W WO02067501A2 WO 2002067501 A2 WO2002067501 A2 WO 2002067501A2 IL 0200118 W IL0200118 W IL 0200118W WO 02067501 A2 WO02067501 A2 WO 02067501A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- customer
- agent
- control
- video
- lan
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
- H04L12/1827—Network arrangements for conference optimisation or adaptation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1106—Call signalling protocols; H.323 and related
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
-
- 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
- H04N21/643—Communication protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
Definitions
- the present invention relates generally to video transmission over internet protocol compliant networks. More specifically the invention deals with simultaneous distribution to multiple end - points of video on such networks.
- Videoconferencing is defined as a technique for intercommunicating two or more audiovisual end - points interactively, such that video is facilitated between the parties involved.
- Full two - way audio and video is costly and requires analog video channels or high capacity digital channel.
- Present day videoconferencing is implemented by using either IP networks or ISDN.
- a more common configuration is that of Interactive TV, which includes full service out, audio only in.
- the components of a videoconferencing system end - point is a camera, microphone, video display.
- a codec Compression/Decompression
- MCU Multipoint Conferencing Unit
- the standards are endorsed by the ITU (International Telecommunications Union). The standards are based upon the networking medium that is used to transmit audio, video and data associated with videoconferencing.
- the H.323 standard is the most common video conferencing standard, implemented in Ethernet and Token - ring LANs, it is used in connection with the IP protocol transport.
- the H.320 standard relates to multimedia and videoconferencing over ISDN lines.
- Fig. 1 is a general layout of the components of a network according to the present invention
- Fig. 2 is a block diagram showing the interactions between the components of a system of the present invention
- Fig. 3A is a block diagram describing the components of a service provider premises in connection with external network
- Fig. 3B is a block diagram describing the components of a service provider premises in connection with external network, with the agent connected through the external network;
- Fig. 4 is a flow diagram showing the sequence of events that leads to a contact between a customer and a agent according to an embodiment of the invention
- Fig. 5 is a flow diagram showing the sequence of events that leads to a control over the agent as consequence of issuance of request by the customer.
- Agent 12 is the party that supplies the information, to customers 14, 16 and 18.
- Control module 20 interprets commands coming from control interface 22, to affect transmission of information from agent 12 to the customers.
- Agent 12 transfers information to a one - to - many proxy server 28, thereafter referred to as OTMPS, which distributes the information to customers 14, 16, and 18.
- Control channels are indicated in dashed arrows, whereas solid arrows represent information flow.
- Agent 12 sends instructions to a control interface 30 and receives instructions from same.
- Control interface 30 sends control instructions to control module 32, and OTMPS receives control instructions from control module 32.
- Customers 14, 16 and 18 send control instructions to the control interface 30.
- the agent 12 does not have a direct connection to control interface 30, and its interface with the system of the invention is effected exclusively through the OTMPS 28.
- Fig. 3A shows the architectural features of a system of a preferred embodiment of the invention.
- an agent 12 is connected to a LAN 52.
- the LAN 52 is connected to a broad band network 54, to which customers 14, 16, and 18 are also connected.
- control interface 30 is connected to the LAN 52
- control module 32 is connected to the LAN 52
- OPTMS 28 is connected to the LAN 52 as well.
- Fig. 3B shows a slightly different embodiment of the invention in which the agent 12 does not necessarily reside within the service provider premises. In this case, the connection of agent 12 with the LAN 52 is mediated through the fast internet network 54.
- Fig. 4 describes the sequence of events taking place in a videoconferencing session performed in accordance with the present invention.
- a customer wishes to join an ongoing video, audio and data transfer session and calls service provider center in step 60.
- the OTMPS establishes a H.323 connection with the calling customer.
- the control module instructs the OTMPS to produce another copy of the datagram stream representing the transmitted information between the customers and the agent.
- a gateway has to be employed using as an interface between the two networks (ISDN and LAN).
- the new customer is passively connected to the customer and obtains video, audio and data like the other customers, having been connected before.
- a connected customer wishes to instruct the agent to change the course of an ongoing session, such as provide a new source of information conveyed to the customers through the LAN, he then issues a control request.
- a suitable interface for such a request is a PC for a internet connection, or a video telephone for an ISDN connection.
- Fig. 5 to which reference is now made, describes one approach for implementing a client takeover of an ongoing session.
- the customer issues the request for control and at step 72 the control interface records the request.
- the control module checks the priority parameters available for the registered customer, and in step 75 control access is granted depending upon the calling customer's priority parameters, a number of existing customers' parameters and on network parameters.
- the request is processed, and in step 78 the control interface is given parameters for changing the ongoing agent output.
- the agent is provided with a set of parameters as to the changes which are to be made effective.
- step 75 If access is not granted to the customer in step 75, refusal is announced in step 82, through customer's audio or video interface, and suggesting a timetable for interaction, based upon an updated timetable, at step 84. At step 86 the customers retries to control the interaction with the agent.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- General Business, Economics & Management (AREA)
- General Engineering & Computer Science (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002232096A AU2002232096A1 (en) | 2001-02-23 | 2002-02-17 | Method and device for simultaneous multipoint distributing of video, voice and data |
US10/468,770 US7626949B2 (en) | 2002-02-17 | 2002-02-17 | Method and device for simultaneous multipoint distributing of video, voice and data |
US12/573,127 US20100020156A1 (en) | 2002-02-17 | 2009-10-04 | Method and device for simultaneous multipoint distributing of video, voice and data |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27057901P | 2001-02-23 | 2001-02-23 | |
US60/270,579 | 2001-02-23 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/573,127 Continuation-In-Part US20100020156A1 (en) | 2002-02-17 | 2009-10-04 | Method and device for simultaneous multipoint distributing of video, voice and data |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002067501A2 true WO2002067501A2 (en) | 2002-08-29 |
WO2002067501A3 WO2002067501A3 (en) | 2002-11-28 |
Family
ID=23031888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IL2002/000118 WO2002067501A2 (en) | 2001-02-23 | 2002-02-17 | Method and device for simultaneous multipoint distributing of video, voice and data |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2002232096A1 (en) |
WO (1) | WO2002067501A2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998023080A2 (en) * | 1996-11-18 | 1998-05-28 | Mci Worldcom, Inc. | A communication system architecture |
-
2002
- 2002-02-17 AU AU2002232096A patent/AU2002232096A1/en not_active Abandoned
- 2002-02-17 WO PCT/IL2002/000118 patent/WO2002067501A2/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998023080A2 (en) * | 1996-11-18 | 1998-05-28 | Mci Worldcom, Inc. | A communication system architecture |
Also Published As
Publication number | Publication date |
---|---|
WO2002067501A3 (en) | 2002-11-28 |
AU2002232096A1 (en) | 2002-09-04 |
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