Method of, and system for, webcasting with just-in-time resource provisioning, automated telephone signal acquisition and streaming, and fully-automated event archival

• US 7,640,303 B2
• Filed: 10/22/2007
• Issued: 12/29/2009
• Est. Priority Date: 04/19/2002
• Status: Expired due to Term

• Current Assignee: Akamai Technologies, Inc.
• Original Assignee: Akamai Technologies, Inc.
• Inventors: Blumofe, Robert D.
• Primary Examiner(s): Dollinger; Tonia L
• Assistant Examiner(s): BILGRAMI, ASGHAR H
• Application Number:
  US11/875,988
• Publication Number:
  US 20080046585A1
• Time in Patent Office: 799 Days
• Field of Search: 709/204, 379/201.12, 379/202.01
• US Class Current: 709/204
• CPC Class Codes: H04L 12/1818 Conference organisation arrangements, e.g. handling schedules, setting up parameters needed by nodes to attend a conference, booking network resources, notifying involved parties
• CPC Class Codes: H04L 12/1831 Tracking arrangements for later retrieval, e.g. recording contents, participants activities or behavior, network status
• CPC Class Codes: H04L 65/1096 Supplementary features, e.g. call forwarding or call holding systems providing special services or facilities to telephony subscribers H04M3/42
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/4038 with floor control
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04M 2203/5009 Adding a party to an existing conference conducting a computer conference, e.g. admission detection H04L12/1822
• CPC Class Codes: H04M 2203/5072 Multiple active speakers conducting a computer conference, e.g. Admission detection H04L12/1822
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04M 7/006 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 H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04M 7/123 where the packet-switched network is an Internet Protocol Multimedia System-type network

Abstract

A multimedia business communications platform enables conference casting over a network. End users or so-called “audience members” participate in conference casts from anywhere on the Internet or behind an enterprise firewall using a standard Web browser running a streaming media player. The conference platform typically includes a number of subsystems: a Web reservation subsystem, a voice server subsystem, a content storage subsystem, a monitoring data subsystem, an attendee access subsystem, and an archive subsystem. Web reservation subsystem provides a mechanism that enables an entity to make an event reservation. Web reservation subsystem typically includes a database and an associated database management system. Voice server subsystem validates a user and converts an incoming telephone signal (i.e., the conference call) to an output data stream. Attendee access subsystem responds to attendee requests and returns information (e.g., a data structure such as a stream metafile) that directs an attendee'"'"'s streaming media player on how to join the conference cast. Content storage subsystem is used to manage event information and, under the control of the archive subsystem, to archive the event files. The monitoring data subsystem comprises a set of monitoring agents distributed throughout the network. Using these components, the system implements just-in-time resource provisioning, automated signal acquisition and streaming, and automated archiving upon event completion.

Claims

1. Apparatus for webcasting over a computer network, comprising:

one or more processors;

a first subsystem accessed over the computer network and including code executed by a processor for enabling an entity to reserve a webcast event, to obtain an event identifier, an access code, and an attendee URL, where the webcast event is a web-based audio event for casting speech of a speaker to one or more audience members over the computer network;

a second subsystem connected to a telephone network and including code executed by a processor for enabling the entity to initiate the webcast event by verifying that a value derived from a one-way hash of the event identifier entered by the entity together with a shared secret matches the access code entered by the entity, and code executed by a processor for generating a data stream from an audio signal derived from speech of a speaker, wherein the speech of the speaker is received by the second subsystem over the telephone network; and

a third subsystem accessible over the computer network and including code executed by a processor responsive to a client browser associated with a listener, who is an audience member, requesting the attendee URL for returning to the client browser a data structure including a stream URL, wherein the stream URL enables a streaming media player to obtain the data stream so that the listener can hear the speaker during the webcast event;

wherein the data structure is generated dynamically based on a current state of the webcast event.

2. The apparatus as described in claim 1 wherein the second subsystem comprises a set of one or more servers, wherein at least one of the servers includes a telephone control engine for playing voice prompts requesting entry by the speaker of the event identifier and the access code.

3. The apparatus as described in claim 2 wherein the telephone control engine writes the data stream to a storage disk associated with the voice server during the webcast event.

4. The apparatus as described in claim 3 wherein the telephone control engine uploads the data stream from the storage disk if the audio signal is interrupted.

13. The apparatus as described in claim 1 wherein the current state of the webcast event includes an identifier associated with an available audio resource.

5. A method of webcasting, comprising:

reserving a webcast event by providing an entity with an event identifier, access code and attendee URL;

wherein the webcast event is an audio event;

initiating the webcast event (a) by verifying that a value derived from a one-way hash of the event identifier entered by the entity together with a shared secret matches the access code entered by the entity, and (b) upon verification, encoding speech data of a speaker into a data stream;

generating a data structure that includes at least a first stream URL at which the data stream can be obtained;

wherein the data structure is generated dynamically based on a current state of webcast event;

enabling a listener, who is an audience member, to access the data stream by returning to a client browser launched to the attendee URL a the data structure and generating an archive of the webcast event.

6. The method as described in claim 5 further including:

generating a copy of the data stream as the webcast event proceeds; and

automatically uploading the copy to a central store upon interruption of the encoded speech data.

7. The method as described in claim 5 wherein the step of generating the archive includes:

defining metadata for each data stream copy that defines what portion of each data stream is to be used for the archive; and

storing the data stream copies and the metadata in a directory of the central store uniquely associated with the event identifier.

8. The method as described in claim 5 further including the step of enabling access to the archive upon entry of the attendee URL.

9. The method as described in claim 5 further including:

restricting access to the archive after a given time period has elapsed.

10. The method as described in claim 5 wherein the data stream is delivered at least in part over a content delivery network.

11. The method as described in claim 5 wherein the data structure includes a second stream URL at which the stream can be obtained, where the second stream URL is available as a failover if the data stream is unavailable from the first stream URL.

12. The method as described in claim 5 wherein the data structure includes customization information in an XSL file.

14. A machine-implemented method of webcasting an audio conference event, comprising:

initiating the webcast event (a) by verifying that a value derived from a one-way hash of the event identifier entered by the entity together with a shared secret matches the access code entered by the entity, and (b) upon verification, encoding speech data of a speaker into a data stream;

dynamically generating a data structure based on a current state of at least one audio resource to be used to deliver the webcast event, wherein the data structure includes at least a stream URL at which the data stream can be obtained by a client browser; and

returning the data structure to a requesting client browser.

15. The method as described in claim 14 wherein the data structure includes a second stream URL at which the stream can be obtained if, during the webcast event, the data stream is unavailable at the stream URL.

16. The method as described in claim 14 further including:

reserving the webcast event by providing an entity with an event identifier, access code and attendee URL.

17. The method as described in claim 16 wherein the data structure is returned when the requesting client browser is launched to the attendee URL.