WO2001002974A9 - Systeme decentralise de production d'emissions sur internet - Google Patents

Systeme decentralise de production d'emissions sur internet

Info

Publication number
WO2001002974A9
WO2001002974A9 PCT/US2000/018369 US0018369W WO0102974A9 WO 2001002974 A9 WO2001002974 A9 WO 2001002974A9 US 0018369 W US0018369 W US 0018369W WO 0102974 A9 WO0102974 A9 WO 0102974A9
Authority
WO
WIPO (PCT)
Prior art keywords
producer
repeater
aggregator
information
program
Prior art date
Application number
PCT/US2000/018369
Other languages
English (en)
Other versions
WO2001002974A1 (fr
Inventor
Todd D Ahlberg
Andrew Barnert
Kelly Byrd
Original Assignee
Rotor Comm Corp
Todd D Ahlberg
Andrew Barnert
Kelly Byrd
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 Rotor Comm Corp, Todd D Ahlberg, Andrew Barnert, Kelly Byrd filed Critical Rotor Comm Corp
Priority to AU60691/00A priority Critical patent/AU6069100A/en
Publication of WO2001002974A1 publication Critical patent/WO2001002974A1/fr
Publication of WO2001002974A9 publication Critical patent/WO2001002974A9/fr

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
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44222—Analytics of user selections, e.g. selection of programs or purchase activity
    • H04N21/44224—Monitoring of user activity on external systems, e.g. Internet browsing
    • 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
    • H04L67/566—Grouping or aggregating service requests, e.g. for unified processing
    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • 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
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23106—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving caching operations
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • 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
    • H04N21/27—Server based end-user applications
    • H04N21/274—Storing end-user multimedia data in response to end-user request, e.g. network recorder
    • H04N21/2743—Video hosting of uploaded data from client
    • 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
    • H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
    • H04N21/4756—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for rating content, e.g. scoring a recommended movie
    • 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
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4786—Supplemental services, e.g. displaying phone caller identification, shopping application e-mailing
    • 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
    • H04N21/478—Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4788—Supplemental services, e.g. displaying phone caller identification, shopping application communicating with other users, e.g. chatting
    • 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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6175—Network physical structure; Signal processing specially adapted to the upstream 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format

Definitions

  • the production of Internet-based program content and producer information can be any suitable production of Internet-based program content and producer information.
  • A/V content program itself (hereinafter, the "A/V content") and (2) commands.
  • the A/V content is a program itself (hereinafter, the "A/V content") and (2) commands.
  • the A/V content is a program itself (hereinafter, the "A/V content") and (2) commands.
  • UDP protocol Unlike the TCP protocol typically used to transmit text, UDP does not
  • Producer information such as commands tell the system to launch such features as
  • Poll typically launches one or more text-based questions, with a choice of answers for each question, and is a way to gather information about viewers' tastes, opinions, knowledge, etc.
  • Chat provides the viewer with a way to interact with other viewers. Talk-back permits the viewer to send questions and comments directly to the commentator.
  • Other features are known as well, and this list is only intended to be exemplary.
  • streaming audio and video signals are exemplary only, and are not intended to limit the scope of the invention in any way.
  • the content's producer launches commands, such as poll, with the intent that the viewer see and respond to the poll questions at particular points in the presentation.
  • the broadcast is generated by a server to a number of clients.
  • the A/V content and commands are received by the client and stored in respective buffers.
  • the buffers fill, or reach some other predetermined condition, an audio player and a video player are launched within the viewer's computer, and A/N content can be watched and heard while subsequent packets are being delivered.
  • the viewers' responses are sent to the broadcasting server.
  • the number of clients receiving and/or participating in an interactive broadcast is limited by many factors. Some of them are computer-specific resources (such as random access memory (RAM), central processing unit (CPU) speed, etc.), operating system- (OS) specific resources (e.g., WINDOWS NT has different limits than Unix), and bandwidth and network congestion which can substantially impede the quality and continuity of the server/client connection. Due to implementation specifics of sockets under most operating systems, the upper limit for the number of concurrent socket connections on a single machine is approximately 65,000 regardless of the other factors that may reduce that number substantially. The broadcast system must, however, be able to register and address the participants, broadcast to them, receive interactive input from them and respond appropriately to the interactive input within the limitations imposed.
  • RAM random access memory
  • CPU central processing unit
  • OS operating system-
  • Unix Unix
  • a decentralized network for the high-quality transmission of live or prerecorded interactive Internet-based programs such as shows, classes, and meetings to a virtually unlimited number of clients any place in the world.
  • the network can be implemented as, for example, a streaming media broadcasting network with full interactivity capable of accessing a large world- wide audience (e.g., one million users) with a broadcast server requiring only a single Tl line or the like.
  • At least one bi-directional repeater/aggregator communicates between a server and one or more clients for (1) receiving the program content from a server and rebroadcasting the content to a plurality of clients, and (2) aggregating data from the plurality of clients and sending a composite thereof to the server.
  • the server is programmed to fold the composite input presented by each repeater/aggregator into a picture of the total audience response.
  • each repeater/aggregator can service 10,000 clients
  • every added repeater/aggregator can increase the potential audience by 10,000 within substantially less bandwidth than that required by a direct connection to the same number of viewers.
  • a content producer with three repeater/aggregators can reach 30,000 viewers; a content producer with seven repeater/aggregators can reach 70,000 users, etc., all within the bandwidth typically required to reach 10,000.
  • the audio, video, and interactive content will travel the shortest possible distance over the public Internet, ensuring a high-quality transmission.
  • the network disclosed herein accordingly decentralizes the bandwidth required by putting the R/As as close to the viewer as possible from a network topology standpoint. For example, if a number of viewers on AOL are logged onto the program, the preferred location for the R/A serving them is the same network segment as the modem pool at AOL where those viewers dial into. The next (less preferred) location is on the AOL network. The next (even less preferred) location is on a well- connected network that is connected directly to AOL privately (i.e., not through a public Internet exchange, which are known to be congested). BRIEF DESCRIPTION OF THE DRAWING
  • FIG. 1 is a block diagram schematic of an exemplary decentralized network for transmitting interactive Internet-based programs constructed in accordance with an exemplary embodiment of the invention.
  • FIG. 1 For illustration purposes only, this disclosure will describe the production system in terms relevant to classroom and/or entertainment programming.
  • the term “commentator” will be used to denote the classroom instructor, the entertainment program's host and/or other persons being viewed at the moment by the viewer;
  • client will denote the viewer's computer system, including hardware and software;
  • server will denote the computer(s) (including hardware and software) which deliver the program content to the client, and
  • viewer will refer to the person(s) at the client end of the system.
  • Other embodiments may be realized and structural or logical changes may be made to the disclosed embodiments without departing from the spirit or scope of the invention.
  • the embodiments are particularly described as applied to production systems in terms relevant to classroom and/or entertainment programming, it should be readily apparent that the invention may be embodied in any device or system having the same or similar problems.
  • audio/video server 10 for broadcasting content and information such as an audio/video
  • R/A (each hereinafter, referred to as an "R/A" for brevity) are coupled for bi-directional
  • R/As may be physically located anywhere in the world, but are preferably geographically
  • the first R/A 12 is illustratively shown coupled for bi-directional communication with
  • R/As can be used. Likewise, only three clients have been illustrated for each R/A for
  • Each R/A 12, 14 repeats the interactive content transmitted by the server 10. Some or all of the content, may conveniently be partially or wholly pre-loaded into the R/As prior to actual broadcast to the clients.
  • Each R/A 12, 14 additionally collects and aggregates feedback from the viewers with whom it is communicating so that a composite user input can be passed along to the producer's register. If a multiple-choice exam question is launched from the server, for example, having three possible answers "A,” “B,” and “C,” each R/A aggregates the answers received from the clients with which it is communicating, and reports back to the register the number (or percentage of) clients returning "A,” returning "B,” and returning "C” answers. By aggregating the data, information can be returned to the register utilizing less bandwidth than would be required by the return of individual responses from each client.
  • each R A can be programmed to retain the answers from each specific client, or other non-priority data, for later transmission to the register at a time when bandwidth is available or the time more convenient.
  • any of a variety of reports can be generated from the raw data accumulated in the R/As. For example, statistical analyses can be performed, trends and correlations analyzed, etc. The reports can be generated at the R/As, or some or all the raw data can later be transmitted to the register or any other location for a global analysis.
  • the data from the R/As to the register or other receiving location can accordingly be sent continuously or the data can be batch-processed and forwarded in batches.
  • a viewer may log into the system via an R/A which, in turn, registers the viewer with the server 10.
  • the client may be registered using any known identification system, such as by both the socket number at which the client's R/A is coupled to the server, as well as by the R/As socket number at which the client is connected.
  • the system is thereby flexible enough to enable the program's A/N content and/or producer information such as selected commands to be downloaded by one or more specific clients at one or more specific R/As by tagging the content/command packet with the appropriate addresses.
  • producer information can be sent to viewers in response to specific inputs, the presence of certain keywords in, for example, a talk-back or chat statement, or in response to any other criteria which the producer or broadcaster wishes to use.
  • Producer commands thus enable a variety of functions to be performed such as chat (between two or more clients), poll of users, etc.
  • Bandwidth is also saved by combining the interactive feedback from all clients at each R/A prior to transmission to the server. Transmitting combined feedback saves the protocol overhead which would otherwise arise from generating and processing separately headered packets from direcdy connected clients.
  • Bandwidth can also be saved by using each R/A as a filter to avoid or delay transmission of irrelevant (or non-priority) data to the server. For example, the unnecessary transmission to the server, and processing by the server, of each and every bid in an Internet- based auction is avoided when each R/A only transmits the highest bid cast by the clients to which it is connected. Bids which are less than the highest are irrelevant. Accordingly, only the highest of the bids received from the clients within each predefined window are forwarded to the server.
  • clients connect to the producer's register, which assigns the client to the appropriate R/A, to which the client connects or is connected.
  • Each client's user logs on by providing his/her username and password.
  • the register to which the user is connected confirms that the user is registered. If the user is not registered, a registration procedure can be launched. Once registration is completed or confirmed, the user receives files which will be used as the program is viewed. These files may, for example, be plug-ins, players, slides, interface artwork, and software updates.
  • the files have previously been loaded into a plurality of distribution servers 28, 30 for transmission to the client through the R/As after log-in.
  • each distribution server e.g., one distribution server for every five R/As.
  • the server is thereby free to perform other tasks, while many more clients can be serviced than by the server alone.
  • Clients may be assigned to a particular R/A based upon parameters deemed important to the particular broadcast. For example, it may be desirable to assign clients to R/As that are geographically closest to them. This may, however, result in an uneven assignment of clients among the available R/As, which load some R/As while utilizing others inefficiently.
  • users may be assigned to R/As in a "round robin" manner, whereby users are evenly distributed among the R/As as they log in.
  • archive servers are preferably employed to store archived broadcasts for future, on-demand access by participants.
  • Incoming data can then be parsed and searched so that an operator can control the quantity, by controlling the quality, of audience feedback.
  • the program director will accordingly only receive that input which will most benefit the show.
  • the network described herein may additionally include monitoring capabilities to maintain the high levels of performance for its producers.
  • Various "status" systems monitor the network continuously, redirecting traffic as required by the network, requiring various "proxy” servers to act as intermediaries in checking producers' and participants' licenses and registration permissions, handling updates and directing traffic to the appropriate repeater/aggregators based on geographic location.
  • the system register permits the producer to register the show, and gather general and specific demographic information from an aggregated database.
  • the register creates the aggregated database by tracking all the activity that occurs during presentation of the program, and organizing the data by producers and participants. All viewer data is preferably logged in appropriate tables from which reports can subsequently be generated. Viewers connect to the Register to search for show and schedule information.
  • one or more processor- based systems are used to implement the modules described or apparent from the description herein (e.g., server 10, distribution servers 28, 30, R/As 12, 14, and clients 16, 18, 20, 22, 24, 26) and to perform the functionality described (or inherent) herein.
  • processors e.g., central processing unit (CPU)
  • CPU central processing unit
  • the processor(s) perform, control, or at least inform the various processing steps performed by the system in sending and retrieving data to and from at least one user interface and/or network.
  • a user interface may be connected directly to a bus or remotely connected through a network (e.g., Internet).
  • the network represents (wired or wireless) connection of two or more devices, whether directly or indirectly connected (e.g., directly coupling through cable, indirect coupling through one or more hubs or servers, whether the network is local to the processor-based system, geographically remote from system, or a distributed combination of local/remote network components).
  • one or more of the modules depicted in FIG. 1 are coupled (directiy or indirectly) to one or more database structures for use in supplying storage functionality for the modules in accordance with the operations described (or inherent) herein (e.g., storage of preloaded content in R/As, operating as the system or producer's register, etc.).
  • the database structures can take any form from an individual floppy disk drive, hard disk drive, CD-ROM, redundant array of independent devices (RAID) system, to a network of storage devices.
  • the database structures may be physically connected within the same location, or have one or more structures remotely located in different locations.
  • Each module may have dedicated or shared access to one or more database structures locally or remotely located from the module.
  • the preferred embodiments described herein relate to Internet-based program production systems capable of producing live interactive classroom instruction, virtual
  • Alternative embodiments further include both centralized and decentralized distribution of programs or content.
  • the components described herein may be one or more hardware, software, or hybrid components residing " in (or distributed among) one or more local or remote computer systems. Although the components are shown or described as physically separated components, it should be readily apparent that individual components may be omitted, combined, or further separated into a variety of different components, sharing different resources (including processing units, memory, clock devices, software routines, etc.) as required for the particular implementation of the embodiments disclosed herein. Indeed, even a single general purpose computer executing a computer program stored on a recording medium to produce the functionality referred to herein may be utilized to implement one or more of the components in the illustrated embodiments. Any user interface devices utilized may be implemented as a graphical user interface (GUI) containing a display or the like, or may be a link to other user input/output devices known in the art.
  • GUI graphical user interface
  • memory units described herein may be any one or more of the known storage devices (e.g., Random Access Memory (RAM), Read Only Memory (ROM), hard disk drive (HDD), floppy drive, zip drive, compact disk-ROM, DVD, bubble memory, etc.), and may also be one or more memory devices embedded within a processor or CPU, or shared with one or more of the other components.
  • RAM Random Access Memory
  • ROM Read Only Memory
  • HDD hard disk drive
  • floppy drive floppy drive
  • zip drive compact disk-ROM
  • DVD bubble memory
  • bubble memory units described herein may be any one or more of the known storage devices (e.g., Random Access Memory (RAM), Read Only Memory (ROM), hard disk drive (HDD), floppy drive, zip drive, compact disk-ROM, DVD, bubble memory, etc.), and may also be one or more memory devices embedded within a processor or CPU, or shared with one or more of the other components.
  • the computer programs or algorithms described (or inherent) herein may easily be configured as one or more hardware components, and the hardware

Abstract

L'invention porte sur un réseau décentralisé qui offre une grande qualité de transmission par Internet d'émissions interactives en direct ou préenregistrées, telles que des présentations, des classes ou des réunions, à destination d'un nombre virtuellement illimité de clients partout dans le monde. Au moins un répétiteur/agrégateur bidirectionnel (12) établit une communication entre un serveur (10) et un ou plusieurs clients (16-20) pour recevoir le contenu de l'émission du serveur (10) et le retransmettre à plusieurs clients (16-20); et pour rassembler des données desdits clients (16-20) et en envoyer un composite au serveur (10). Le serveur est programmé pour incorporer le composite entré par chaque répétiteur/agrégateur (12, 14) et en tirer une photographie représentative de la réaction de l'ensemble des destinataires.
PCT/US2000/018369 1999-07-06 2000-07-06 Systeme decentralise de production d'emissions sur internet WO2001002974A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60691/00A AU6069100A (en) 1999-07-06 2000-07-06 Decentralized internet-based program production system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14265599P 1999-07-06 1999-07-06
US60/142,655 1999-07-06

Publications (2)

Publication Number Publication Date
WO2001002974A1 WO2001002974A1 (fr) 2001-01-11
WO2001002974A9 true WO2001002974A9 (fr) 2002-07-25

Family

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Application Number Title Priority Date Filing Date
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Country Status (2)

Country Link
AU (1) AU6069100A (fr)
WO (1) WO2001002974A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2832014A1 (fr) * 2001-11-08 2003-05-09 Thomson Licensing Sa Module et procede de communication inter-utilisateurs et produits correspondants
DE10320889B3 (de) * 2003-05-09 2004-11-04 Ingo Wolf Verfahren und Vorrichtung zum Erzeugen und Senden eines Fernsehprogrammes über Ip-basierte Medien, im speziellen das Internet
WO2007131544A1 (fr) * 2006-05-15 2007-11-22 Joost N.V. Procédé de traitement de données utilisateurs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6029195A (en) * 1994-11-29 2000-02-22 Herz; Frederick S. M. System for customized electronic identification of desirable objects
US5901287A (en) * 1996-04-01 1999-05-04 The Sabre Group Inc. Information aggregation and synthesization system
US5903727A (en) * 1996-06-18 1999-05-11 Sun Microsystems, Inc. Processing HTML to embed sound in a web page
US5864827A (en) * 1997-06-27 1999-01-26 Belzberg Financial Markets & News International Inc. System and method for providing an information gateway

Also Published As

Publication number Publication date
WO2001002974A1 (fr) 2001-01-11
AU6069100A (en) 2001-01-22

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