Abstract: Methods and apparatuses are described for application broadcasting. For one embodiment, pixel data being broadcast from a moderator to one or more participants is divided into tiles. Display data is generated for each tile. Each display data segment (segment) contains the pixel data for the tile, and also contains a tile identifier. The segments are periodically evaluated. If the pixel data has changed, the segment is replaced with the most recent segment corresponding to that tile. A time indicator is also included within each segment for each tile indicating the time at which the segment was updated. A participant DPS requests data from the server and provides the time indicator for the last segment it received. The server then transmits the current segment for each tile that has been updated subsequently. This allows presentation at the participant's DPS of the most current version of the moderator's display screen.

Abstract: Methods and apparatuses are described for application broadcasting. For one embodiment, pixel data being broadcast from a moderator to one or more participants is divided into tiles. Display data is generated for each tile. Each display data segment (segment) contains the pixel data for the tile, and also contains a tile identifier. The segments are periodically evaluated. If the pixel data has changed, the segment is replaced with the most recent segment corresponding to that tile. A time indicator is also included within each segment for each tile indicating the time at which the segment was updated. A participant DPS requests data from the server and provides the time indicator for the last segment it received. The server then transmits the current segment for each tile that has been updated subsequently. This allows presentation at the participant's DPS of the most current version of the moderator's display screen.

Abstract: A method and system that synchronizes time-related data in a digital processing system. The data to be synchronized includes display data such as audio or video data and command data such as uniform resource locators. The data is encoded with time indicators that allow the media data, through the execution of a set of instructions, to be processed synchronously with the display data.

Abstract: A method and system that synchronizes time-related data in a digital processing system. The data to be synchronized includes display data such as audio or video data and command data such as uniform resource locators., The data is encoded with time indicators that allow the media data, through the execution of a set of instructions, to be processed synchronously with the display data.

Abstract: A method and system that remotely modifies presentation data in a multimedia conference. The conference moderator can remotely issue commands that change the HTML and Javascript or create new HTML or Javascript for the web page being presented to the conference participant. The moderator is changing the HTML and Javascript displayed in the conference participant's browser window, by remote control. The HTML and Javascript in the participant's presentation data is changed so that the participant views what the moderator directs. This is not predetermined, but can be changed by the moderator at any time. Through the use of a presentation Java applet, the moderator of a conference is able to place annotation commands into the empty annotation containers of a conference participant's annotation shell page. The moderator chooses annotation commands for the containers and then transmits the commands to a viewing Java applet at the participant's DPS.