WO2001045406A1 - Systeme d'emission debat a base reseau - Google Patents

Systeme d'emission debat a base reseau Download PDF

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Publication number
WO2001045406A1
WO2001045406A1 PCT/CA2000/001477 CA0001477W WO0145406A1 WO 2001045406 A1 WO2001045406 A1 WO 2001045406A1 CA 0001477 W CA0001477 W CA 0001477W WO 0145406 A1 WO0145406 A1 WO 0145406A1
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WO
WIPO (PCT)
Prior art keywords
host
show
questions
audience
question
Prior art date
Application number
PCT/CA2000/001477
Other languages
English (en)
Inventor
Marc Lutz
Original Assignee
Telum (Canada) Inc.
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 Telum (Canada) Inc. filed Critical Telum (Canada) Inc.
Priority to AU21358/01A priority Critical patent/AU2135801A/en
Publication of WO2001045406A1 publication Critical patent/WO2001045406A1/fr

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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
    • H04L12/1822—Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • 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
    • H04N7/152—Multipoint control units therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/567—Integrating service provisioning from a plurality of service providers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer

Definitions

  • the present invention relates to a system and method for creating, managing and broadcasting a real-time, interactive, multimedia presentation such as a talk show, or talk-radio show, across a packet-based computer network allowing direct, real-time interaction between the host, guests and the audience. More specifically, the present invention relates a method and system for the audience of a show to participate in the show by submitting questions to the show's guests or host, a method for sorting and managing these questions in an efficient manner, a method for selecting questions for discussion, a method for establishing a voice communications channel for conversation between the host and the caller, and a method for efficiently broadcast the resulting conversation as part of the show across a packet-based network such as the Internet.
  • a packet-based network such as the Internet
  • radio shows are broadcast over the radio, television or the Internet with questions commonly received using voice only over a telephone system, or text only by email or text chat.
  • radio shows commonly publicize a telephone number, which people call when they have a question or comment on the topic of the show.
  • people submit questions by text, either using email or text chat technology which are then commented on by the host or guests on the program.
  • An alternate format for talk shows, especially over the Internet, is to use an all text format with both questions and answers using text chat technology.
  • Voice chat technology over the Internet tends to be limited to relatively small numbers of people because large groups quickly become unmanageable, both because of interruptions of the current speaker, and because it is not possible to determine what someone wishes to say without letting them speak. This is problematic when an audience for a show might be very large, with many people competing for the host's attention, or when the audience is distributed over a wide geographic area where network lag and network traffic desynchronize the show and audience members. There are also serious issues of network lag and quality of service and quality of the audio if it is necessary to maintain a very large group of people connected in real time to the talk show, as would be necessary if everyone has access to the host.
  • talk radio Another problem with implementing talk radio on the Internet is that it is difficult to pre-screen large numbers of prospective callers within a real-time network system, where the large number of voice conversation would require a large group of moderators. Such interviews would need to be conducted in real-time, and it is difficult for a person to effectively monitor multiple audio conversations.
  • Another problem with hosting a live, interactive talk show on the Internet is that current networks delivering streaming data work best if the data can be properly buffered to overcome problems with network lag. In a real time voice communication system, this means there is a pause each time a different person speaks, such as during a two way conversation. This is a problem that grows worst as the number of potential speakers increases, and the amount of data sent increases.
  • a computer interface used by the host of a talk radio program or presentation comprising:
  • User interface including displays of the status of a show as well as the status of the connection to the digital network;
  • Text list of questions submitted by the audience to the host of a show such that selecting an audience member name, or selecting the text of the question will create a direct voice link to that audience member.
  • This list consists of either all questions submitted by the Audience, or only those questions submitted by the audience and pre-screened show by the moderator(s) and made visible to the host;
  • the show host computer interface is part of a larger system that also includes the methods by which a show is encoded and prepared for broadcast, comprising;
  • a codec or codecs, to compress the digital representation of the sound or speech and prepare it for transmission across a packet-based network, such as the Internet, as well as decode encoded speech for audible playback;
  • a sound mixing system such that digital sound from multiple sources, such as the host and a live caller connection, are combined into a single digital audio stream, such that the stream consists of the data from a single source, either host or caller, passed directly to the rebroadcast server when all other sources are quiet, or as a mixed stream otherwise;
  • Optional means to capture a video image of the host such as a video camera, and digitization mean to convert the video stream to digital format;
  • Means to package the encoded show and transmit the resulting packets across a network such as the Internet to a rebroadcast Server for broadcast to the entire audience using a server-client architecture.
  • Audience software to compress the digital representation of the video and prepare it for transmission across a packet-based network, such as the Internet.
  • a computer program used by the audience of a networked talk radio program, comprising; Means to connect across a packet-based network such as the Internet to remote computers acting as broadcast servers, and request permission to join a broadcast;
  • a codec or codecs, to decode digitally encoded speech, sound to analogue form for audible playback of the sound or speech;
  • the computer program that is playing the show can provide space onscreen for the display of images, videos, text or other information.
  • a computer interface used by the audience of a networked talk radio program, and invoked by clicking an onscreen button or hyperlink, comprising:
  • a button to withdraw text questions, or modify text questions submitted by the user A button, slider or dial allowing the audience member to adjust local audio setting such as the volume of playback, or the recording volume of the microphone connected to the local computer,
  • the computer software also provides text and audio feedback from the host, such that the audience member is aware of the status of their submitted question, and has warning when their question is next or has been selected for discussion
  • the computer software also includes the methods by which the audience member connects to the host's computer as well as the means to encode and decode sound or speech, comprising,
  • An onscreen computer user interface including,
  • Text questions are evenly distributed among moderators, of which there can be any number;
  • the computer software interface is part of a larger system that also includes the methods by which moderator interface is managed and integrated into the system, comprising;
  • a persistent connection with the servers to allow constant data exchange between the servers, the host and the moderators.
  • the present invention provides a method and system to limit the number of real-time, live conversations that must be maintained, while at the same time making massive participation by the audience possible and maintaining the impression of a real-time, interactive transmission
  • the present invention also provides a method and system that simplifies the screening of large numbers of questions, and allows a host, moderator or guest to quickly direct their attention to the most appropriate questions and callers
  • the present invention also provides a method and system that makes it possible, during large scale broadcasts with many audience members, for a host to converse directly to the single person, selected in real time from a list of questions submitted, and allows the conversation resulting to be broadcast to the audience m as near to real-time as is technically possible Because the connection to the caller is logically before the connection to the rebroadcast servers, the show stream can be normalized or enhanced without compromising the real-time nature of the live connection to the caller BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 shows a block diagram of a system in accordance with an embodiment of the present invention including one host and the audience submitting questions, and
  • Figure 2 shows a block diagram of a system in accordance with an embodiment of the present invention including one host, a moderator and the audience submitting questions
  • Figure 3 1 shows an example of the interface for the host software
  • Figure 3 2 shows an example of the interface for the moderator software
  • Figure 3 3 shows an example of the caller or question submission software
  • Figure 4 shows a block diagram of an audience member connecting to the servers to join a show
  • Figure 5 shows a block diagram of an audience member submitting a question to a show
  • Figure 6 shows a block diagram of a show host connecting to the servers to begin a show broadcast
  • Figure 7 shows a block diagram of a moderator connecting to moderate a show and sorting, prioritizing and screening questions
  • Figure 8 shows a block diagram of a host connecting to an audience member for a voice chat to be broadcast as part of the show
  • Figure 9 shows the audio mixer used to include the audio from an audience member conversing with the host.
  • Figure 10 shows a complete server configuration for the system with redundancy
  • the system and method includes an encoding means to encode speech and audio for transmission across the network and a decoding means to decode speech and audio received across the network
  • the system captures audio using a microphone connected to a personal computer equipped with a sound card
  • the audio is converted from an analog signal to a digital representation
  • This digital representation is then converted using audio compression codecs to highly compressed digital audio
  • a video camera may be included to transmit the video of the host, and any video image would be encoded and sent m the same way as the host's audio signal
  • a transmission means to send encoded speech and audio to and from client applications, and to and from the servers broadcasting the show
  • the highly compressed digital audio is converted to packets of data suitable for transmission across a packet-based network such as the Internet
  • the packets are sent using various network protocols such as streaming HTTP, TC/P and UDP Conversation between the host and the live connected audience member utilize UPD and the SOCKS 5 standard. All communication between the software and the control applications hosted on the system's servers utilize UPD and the SOCKS 5 standard All communication with the servers originating on HTML pages, or opening HTML pages utilizes HTTP.
  • the shows are broadcast using the most efficient protocol available, given the precise network configuration an audience member has.
  • the streaming servers first attempt a multicast connection, then attempt a UDP connection, and then attempt a TC/P connection If these all fail a final attempt to stream the show is made using streaming HTTP
  • the audience connects to show s by entering an IP address or URL using an Internet browser
  • On this web page are hyperlinks [Fig 4- block 2] that will send request to the web server to join a particular show [Fig 4- block 3] using HTTP
  • authorization could also be implemented using IP addresses, cookies or certificates instead of typing in a password
  • the server sends another HTML page [Fig 4- block 6] that includes scripts to launch the multimedia player that will decode the packets and cause the digital data to be played as analogue sound, as well as format the "Ask Host" button or link [F ⁇ g.4-block 7].
  • the HTML page can also provide scripts to decode instructions contained as part of the audio stream [F ⁇ g.4-block 8] to display video, open files such as images or modify the HTML page itself. Such images would be served by Content servers using HTTP [Fig 10-block 4] Also included is a means to send and receive text data between the audience, the servers, moderators and the host, as well as provide text feedback and status updates to the users of the system.
  • the text and feedback comments are converted to packets of data suitable for transmission across a packet-based network such as the Internet
  • These packets are them sent utilizing UDP and SOCKS 5 Audience members submit questions by text, which the host or moderator can then sort, accept, reject or drop
  • the audience member can also withdraw the question at any time, or change the question at any time until it has been accepted by the host or moderator.
  • Questions submitted by the audience are stored on the servers by an application designed specifically to receive, manage and store these questions.
  • the application on the server creates space in its database to store questions for the show [F ⁇ g.6-block 8], as well as space to store text chat comments between the host and moderators. These comments are automatically forwarded to all moderators and hosts as a group.
  • the audience is presented as part of the HTML page used to play the show a hypertext link or button labeled "Ask Host", or some variant there of, that can be 'clicked' to submit a question [F ⁇ g.5-block 2]
  • This sends a request to the web server using HTTP [Fig.5 -block 3], that invokes a server script, such as an ASP or CGI, that will generate a ticket used to launch the client software [Fig.5 -block 4].
  • the ticket contains the Internet address of the question server, the ID number of the show and a security verification number
  • the user can then type a text question using client software specifically designed and created to submit questions to the question server.
  • the audience member types the question into a text box available on the interface of the software [fig5-block 5], then presses "Submit” [F ⁇ g.5-block 6].
  • This sends the question [F ⁇ g.5-block 7], plus information about which show that the question is for, authorization information that is checked against a database of authorized users, the network address of the submitter, such as an IP address and port, and the type of request this is (Submit or Withdraw question) [F ⁇ g5-block 6, 1 1, 12, 9].
  • the question is then registered on the database [F ⁇ g.5-block 10, 13] and the host's or moderator's software is sent updated information [Fig.6- block 14, Fig.7-block 13] based on the contents of the database.
  • a text notification is sent back from the server to the audience member, for example when a question is 'Next' or 'Live' [Fig5 block 14, Fig 7-block 15, Fig.8-bock 4, 8, 1 1].
  • this information is sent as UPD packets to the question server, where status flags associated with the questions are changed [Fig.5-block 10. 1 1 Fig.7-block 14, Fig.8- block 3, 7, 15].
  • the data packet referred to in Block 8 of Fig. 5 contains; Show ID #, User Verification #, User Name, User IP address and port, [Text Question OR Delete question command].
  • the database referred to in Block 10 of Fig. 5 has entries which include Show ID, User Name, Text Question, User IP address and port, Status of question
  • the Ticket referred to in Block 7 of Fig. 6 has IP address of server, port or socket to use for control stream, port or socket to use for question data, Show ID #, show authorizations
  • Block 8 of Fig. 6 involves Create channel and station for show stream, storage area for archive, entry in question server database plus space for storage, create session on Control Service and open persistent UDP connection for control and monitoring for quality of service.
  • the Verification step referred to in Block 9 of Fig. 6 includes whether all channels, ports and sockets on servers are accessible, status of control channel, software client self-diagnosis, address of broadcast point used by Host client for testing
  • the Host client prepares a broadcast point on the local computer, limited to one connection and sends this information to the servers.
  • the servers call back to this point to receive the show stream, which is then rebroadcast to the audience by the rebroadcast servers
  • a UDP connection is opened directl) between the host and the audience member Control information flows from the host to the audience member such that the host can adjust the recording level of the audience member's microphone in real time, can disconnect the audience member from the conversation, and can disable the audience member's microphone using functionality built into the audience client
  • the question submission client instructs the show player to mute the show stream to avoid feedback or echoes
  • this same connection can also be opened between the audience member and a moderator allowing the moderators to voice interview selected audience members, and send notification to the question server about the success of such interviews
  • a server infrastructure to stream encoded speech and audio to a multitude of clients, as well as authorizing users and maintaining Internet addresses of users
  • the host, and any conversations with audience members the host has, are captured and broadcast by the server infrastructure Usually, this will happen in near real-time, as soon as the voice and audio has been mixed and prepared by the server for broadcast, increasing the quality of the broadcast
  • the usual delay used is the same delay used in radio broadcasts, approximately 7 second.
  • the server architecture consists of one or more web servers [Fig.10-block 1 ] responsible for running scripts used to generate tickets used to launch software, web pages used to navigate and select show lists, templates used to play and participate m shows and maintain SQL databases used in authorization, as well as indexing all content such as shows available, and sho s stored Shows are streamed for rebroadcast to a master control server [Fig 10-block 2] responsible for receiving shows, running the services that allow questions to be submitted, running services that allow the automation of broadcasting show s and distribution of shows to the rebroadcast servers There are one or more rebroadcast servers that receive the show streams from the master control serv er [Fig 10-block 3] These rebroadcast servers are connected to using the player embedded [Fig 4-block 6] in the web pages served by the web servers [Fig 10-block 1 ] and are responsible for replicating the streams as necessary to serve all of the audience In cases where other content is used m shows by including references to the content with the audio stream, this content is served using HTTP requests from Content
  • the advantage of the network based talk show system described here is that it allows a host, or a host and moderator, to screen large numbers of question and focus the show only on appropriate question.
  • a host or a host and moderator
  • the host and moderators can quickly eliminate unwanted questions by deleting them, or 'setting their flags to 'Ignore'. Questions can be sorted into prioritized lists, and hosts can connect to callers in a controlled, moderated fashion.
  • Callers can be pre-screened based on their text questions, speeding the process and minimizing the amount of bandwidth This system also allows the host and caller to talk without needing to maintain a live, synchronized connection with the entire audience
  • the show stream is broadcast from a number of broadcast servers that replicate the stream uploaded by the host to the master control server
  • the show can be broadcast with a slight delay to allow normalization, or monitoring for inappropriate content, without disrupting the interactive feel of the show.
  • the connection between the host and caller is before any server induced delay, similar to the way a radio broadcast is transmitted using a seven second delay, but telephone calls to the radio station are patched in before the delay, so an illusion of live broadcast is maintained.
  • the advantage of the described audio mixing method is that it allows conversations to be broadcast using the same network bandwidth the host uses when there is no caller connected.
  • Another advantage of the described audio mixing is that it preserves the integrity of the host's voice at all times and the callers voice at most times, sacrificing audio quality only when both voices overlap and quality is already compromised.
  • Bandwidth is never doubled, because the voices are mixed into a single digital audio source before being encoded and packaged when the host and caller are speaking simultaneously, and passed directly past through the mixer when only one or the other is speaking. Doubling the bandwidth when both speak presents serious problems because it causes a spike in utilized bandwidth that can cause network problems especially during large show broadcast, while always decoding and mixing the callers voice causes degradation common when compressed audio is decoded and recompressed

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un système et un procédé d'émission débat, ou de débat radio multi-utilisateur en temps réel à base réseau. Lesdits système et procédé permettent de soumettre des questions aux invités ou hôtes dans l'émission, de trier et de gérer ces questions de manière efficace, de sélectionner des questions pour discussion, d'établir un canal vocal entre l'hôte et l'appeleur, et ensuite d'émettre les données résultantes de manière efficace en tant qu'émission débat radio sur un réseau tel qu'Internet.
PCT/CA2000/001477 1999-12-17 2000-12-18 Systeme d'emission debat a base reseau WO2001045406A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21358/01A AU2135801A (en) 1999-12-17 2000-12-18 Network-based talk show system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17213799P 1999-12-17 1999-12-17
US60/172,137 1999-12-17

Publications (1)

Publication Number Publication Date
WO2001045406A1 true WO2001045406A1 (fr) 2001-06-21

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PCT/CA2000/001477 WO2001045406A1 (fr) 1999-12-17 2000-12-18 Systeme d'emission debat a base reseau

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AU (1) AU2135801A (fr)
WO (1) WO2001045406A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828044A1 (fr) * 2001-07-26 2003-01-31 Net Television Factory Procede et systeme pour creer et diffuser, a partir d'une ferme de serveurs, des flux de donnees enrichies
WO2003026302A1 (fr) 2001-09-18 2003-03-27 Sony Corporation Appareil de transmission, procede de transmission, systeme de remise de contenu, procede de remise de contenu et programme
WO2003034702A1 (fr) * 2001-10-18 2003-04-24 Surfbuy Excipio Ab Systeme de communication conference
FR2847408A1 (fr) * 2002-11-15 2004-05-21 Michel Delran Procede pour la production de phonogrammes et de videogrammes a distance et dispositif d'interface pour la mise en oeuvre dudit procede
US7937740B2 (en) 2002-08-16 2011-05-03 MediaIP, Inc. Method and apparatus for interactive programming using captioning
US8255966B2 (en) 2002-04-15 2012-08-28 Shusman Chad W Method and apparatus for internet-based interactive programming
US10856031B2 (en) 2003-04-15 2020-12-01 MedialP, Inc. Method and apparatus for generating interactive programming in a communication network

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490207A (en) * 1994-01-21 1996-02-06 Schorr; Andrew Method of dispersing information and collecting data via telephone systems
US5515099A (en) * 1993-10-20 1996-05-07 Video Conferencing Systems, Inc. Video conferencing system controlled by menu and pointer
US5537141A (en) * 1994-04-15 1996-07-16 Actv, Inc. Distance learning system providing individual television participation, audio responses and memory for every student
US5828838A (en) * 1996-06-20 1998-10-27 Intel Corporation Method and apparatus for conducting multi-point electronic conferences
US5867653A (en) * 1996-04-18 1999-02-02 International Business Machines Corporation Method and apparatus for multi-cast based video conferencing
WO1999012351A1 (fr) * 1997-09-05 1999-03-11 Intelect Communications, Inc. Systeme de communication video reparti
WO1999012349A1 (fr) * 1997-09-04 1999-03-11 Discovery Communications, Inc. Dispositif d'acces et commande video de reseau informatique, y compris la correction d'images

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5515099A (en) * 1993-10-20 1996-05-07 Video Conferencing Systems, Inc. Video conferencing system controlled by menu and pointer
US5490207A (en) * 1994-01-21 1996-02-06 Schorr; Andrew Method of dispersing information and collecting data via telephone systems
US5537141A (en) * 1994-04-15 1996-07-16 Actv, Inc. Distance learning system providing individual television participation, audio responses and memory for every student
US5867653A (en) * 1996-04-18 1999-02-02 International Business Machines Corporation Method and apparatus for multi-cast based video conferencing
US5828838A (en) * 1996-06-20 1998-10-27 Intel Corporation Method and apparatus for conducting multi-point electronic conferences
WO1999012349A1 (fr) * 1997-09-04 1999-03-11 Discovery Communications, Inc. Dispositif d'acces et commande video de reseau informatique, y compris la correction d'images
WO1999012351A1 (fr) * 1997-09-05 1999-03-11 Intelect Communications, Inc. Systeme de communication video reparti

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2828044A1 (fr) * 2001-07-26 2003-01-31 Net Television Factory Procede et systeme pour creer et diffuser, a partir d'une ferme de serveurs, des flux de donnees enrichies
US8510441B2 (en) 2001-09-18 2013-08-13 Sony Corporation Transmission apparatus, transmission method, content delivery system, content delivery method, and program
WO2003026302A1 (fr) 2001-09-18 2003-03-27 Sony Corporation Appareil de transmission, procede de transmission, systeme de remise de contenu, procede de remise de contenu et programme
EP1429559A1 (fr) * 2001-09-18 2004-06-16 Sony Corporation Appareil de transmission, procede de transmission, systeme de remise de contenu, procede de remise de contenu et programme
EP1429559A4 (fr) * 2001-09-18 2009-11-25 Sony Corp Appareil de transmission, procede de transmission, systeme de remise de contenu, procede de remise de contenu et programme
WO2003034702A1 (fr) * 2001-10-18 2003-04-24 Surfbuy Excipio Ab Systeme de communication conference
USRE48579E1 (en) 2002-04-15 2021-06-01 Media Ip, Inc. Method and apparatus for internet-based interactive programming
US8661490B2 (en) 2002-04-15 2014-02-25 MediaIP, Inc. Method and apparatus for internet-based interactive programming
US8255966B2 (en) 2002-04-15 2012-08-28 Shusman Chad W Method and apparatus for internet-based interactive programming
US8402504B2 (en) 2002-08-16 2013-03-19 Media Ip, Inc. Method and apparatus for interactive programming using captioning
US7937740B2 (en) 2002-08-16 2011-05-03 MediaIP, Inc. Method and apparatus for interactive programming using captioning
US8826361B2 (en) 2002-08-16 2014-09-02 Media Ip, Inc. Method and apparatus for interactive programming using captioning
FR2847408A1 (fr) * 2002-11-15 2004-05-21 Michel Delran Procede pour la production de phonogrammes et de videogrammes a distance et dispositif d'interface pour la mise en oeuvre dudit procede
US10856031B2 (en) 2003-04-15 2020-12-01 MedialP, Inc. Method and apparatus for generating interactive programming in a communication network
US11076190B2 (en) 2003-04-15 2021-07-27 MedialP, Inc. Method and apparatus for generating interactive programming in a communication network
US11477506B2 (en) 2003-04-15 2022-10-18 MediaIP, LLC Method and apparatus for generating interactive programming in a communication network
US11575955B2 (en) 2003-04-15 2023-02-07 MediaIP, LLC Providing interactive video on demand

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