A system and method for broadcasting a presentation over a computer network to an online audience. The system comprises an integrated environment that leverages many of the features of Microsoft Corporation's NETSHOW.TM. server technology, along with Microsoft Corporation's POWERPOINT 2000.TM. presentation design application program to enable a presenter to broadcast a presentation to an online audience over a computer network, such as an intranet or the Internet. The system enables a live presentation comprising a plurality of presentation slides, and audio and optionally, a visual content to be broadcast to a plurality of receiving computers over a network so that the presentation slides are displayed and the audio and visual content are replicated on the receiving computers synchronized with the presentation slides, just as in the live presentation. Preferably, the plurality of presentation slides are sent as HTML files via the computer network in advance of the start of the presentation. During the presentation, the live audio and visual content is captured and encoded into an advanced server file stream format that is streamed from a local computer (at the presenter's location) or a NETSHOW.TM. server to the receiving computers. The live audio and visual content is then replicated on the receiving computers using a media player. Also, slide display commands produced in conjunction with a display of the presentation slides during the presentation are streamed to the plurality of computers, so that the presentation slides are displayed on the receiving computers in synchrony with the live presentation, by loading the HTML files into a browser application program running on each of the receiving computers, in response to the slide display commands.
RELATED APPLICATIONS
This application is a continuation-in-part of U.S. patent application Ser. No. 09/333,754, filed Jun. 15, 1999, entitled "PRESENTATION BROADCAST SCHEDULING," the benefit of the filing date of which is hereby claimed under 35 U.S.C. .sctn.120.
A transmission/reception system for data broadcast comprising: a transmission apparatus transmitting audiovisual stream data for a series of plural programs and plural data broadcasting contents relating to programs, which are multiplexed to each other, and a receiving apparatus receiving the audiovisual stream data and presenting the corresponding program, while superimposing and presenting the data broadcasting content to the audiovisual data. The transmission apparatus starts to transmit the data broadcasting content relating to the program 2, before the time "t0" when audiovisual data should change from the program 1 to 2, and transmits the presentation start instruction message at "t0". While, the receiving apparatus receives the data broadcasting content relating to the program 2, and performs a process for forming an image, and invisibly presents the data broadcasting content. Thereafter, the receiving apparatus changes the state of the data broadcasting content to visible when receiving the presentation start instruction message.
A system for broadcasting enhanced television content may provide for early notification of web hosting facilities when uniform resource locators may be broadcast with television content. When uniform resource locators are broadcast with television content, a large number of users may attempt to simultaneously access the hosting web site for the uniform resource locator. By providing early warning through the television broadcast system, the web servers which handle the load of attempted web accesses may gear up for the load spike. Through an automatic system, a relatively failsafe procedure may be implemented to ensure that the web hosting facilities receive notice sufficient to enable them to prepare for the onslaught of attempted accesses.
An electronic presentation system and method provides multiple display screens for presentation materials as well as permits dynamic annotations to presentation materials that do not permanently alter the presentation materials. The presentation materials can easily be directed to any one of the display screens and any annotations can be saved for future use or simply deleted. A single interface screen allows simple annotation of either the left or right screen images while a zoom feature allows slides to be presented in a variety of different ways. Additional features include tracking and displaying an indication of how a presentation is progressing relative to a pre-set timeline, identifying and tracking slides of a presentation which need correction or updating, and permitting a presenter to annotate slides of a presentation while located remotely from the presentation system.
A web site is provisioned with a proxy that receives a page request intended for the server and records a first time. The page request is then forwarded to the server for response. The response stream generated by the server is intercepted at the proxy at a second time. As the stream is forwarded to the requesting client, the proxy inserts a page script that, upon execution at the client, calculates a page render time. This time is determined by calculating the difference between a third time (the time at which the page script begins execution at the client) and a fourth time (a time at which the page rendering is complete). Upon completion of the page rendering, the script opens a connection back to the server and returns a packet that includes the page render time. This packet is received at a fifth time. A transaction record is then built by the proxy using the timestamp data.
A data call between at least two internetworked computers is established using a central server. Once the data call is in place, prerecorded motion video is shared between the two computers by creating a streaming video server on one user's computer for streaming the prerecorded motion video simultaneously to both users as clients of the streaming server. Either user can pause, rewind, or fast forward the streamed video as it is viewed by both users.
