Abstract: The present invention is a system and a method for providing a control unit for a multipoint multimedia/audio conference that enables one or more participants to take part in more than one conference simultaneously. The control unit can operate in audio and/or video sections of an MCU and/or Management and Control System (MCS). The MCS, in an exemplary embodiment of the present invention, controls the participation of at least one participant in more than one conference simultaneously by using a Cross-Conference Database (CCDB). The MCU performs connection changes affecting which participants are associated with one or more conferences based on the information that is stored in the CCDB.

Abstract: Upon receiving a continuous presence video image, an endpoint of a videoconference may identify its self image and replace the self image with other video data, including an alternate video image from another endpoint or a background color. Embedded markers may be placed in a continuous presence video image corresponding to the endpoint. The embedded markers identify the location of the self image of the endpoint in the continuous presence video image. The embedded markers may be inserted by the endpoint or a multipoint control unit serving the endpoint.

Abstract: A new system and method particularly useful in handling the audio of a “large” conference is disclosed. The system and method initially defines certain conferees as panel members, which can provide audio to and receive audio from the conference, and audience members, which only passively receive audio from the conference. In one aspect, an audience member can request to participate in the conference. By making an appropriate request, the audience member can, if system resources are adequate, participate fully as a panel member and may supply audio to the conference for at least some portion of time. Alternatively, the audience member can supply information other than audio data to the conference, such as voting data or other data allowing the audience member to participate in the conference as more than a merely passive listening participant.

Abstract: One or more horizontal stripes are defined in a continuous presence video conferencing image, comprising one or more segments of the video image. The horizontal stripes may have different heights. A horizontal stripe builder associated with a continuous presence videoconferencing port composes and compresses the horizontal stripe from two or more video images received from a plurality of endpoints of the video conferencing system. A continuous presence image stream generator organizes compressed horizontal strips into a plurality of compressed continuous presence video streams for sending toward sites of the video conferencing system.

Abstract: A system and method is disclosed for adapting a continuous presence videoconferencing layout according to interactions between conferees. Using regions of interest found in video images, the arrangement of images of conferees may be dynamically arranged as displayed by endpoints. Arrangements may be responsive to various metrics, including the position of conferees in a room and dominant conferees in the videoconference. Video images may be manipulated as part of the arrangement, including cropping and mirroring the video image. As interactions between conferees change, the layout may be automatically rearranged responsive to the changed interactions.

Abstract: A system and method particularly useful in handling the video of a “large” conference is disclosed. The system and method initially defines certain conferees as panel members, which can provide input video signals to the multipoint control unit and can receive output video signals or a composite layout for the conference from the multipoint control unit. The system and method also initially defines audience members, which only passively receive the output video signals or layout from the multipoint control unit and do not have their video signals incorporated into the layout of the videoconference. In one aspect, an audience terminal can request to participate in the conference. By making an appropriate request, the audience terminal can, if system resources are adequate, participate fully as a panel member and may supply video signals to the conference for at least some portion of time.

Abstract: A system and method particularly useful in handling the video of a “large” conference is disclosed. The system and method initially defines certain conferees as panel members, which can provide input video signals to the multipoint control unit and can receive output video signals or a composite layout for the conference from the multipoint control unit. The system and method also initially defines audience members, which only passively receive the output video signals or layout from the multipoint control unit and do not have their video signals incorporated into the layout of the videoconference. In one aspect, an audience terminal can request to participate in the conference. By making an appropriate request, the audience terminal can, if system resources are adequate, participate fully as a panel member and may supply video signals to the conference for at least some portion of time.

Abstract: A new system and method particularly useful in handling the audio of a “large” conference is disclosed. The system and method initially defines certain conferees as panel members, which can provide audio to and receive audio from the conference, and audience members, which only passively receive audio from the conference. In one aspect, an audience member can request to participate in the conference. By making an appropriate request, the audience member can, if system resources are adequate, participate fully as a panel member and may supply audio to the conference for at least some portion of time. Alternatively, the audience member can supply information other than audio data to the conference, such as voting data or other data allowing the audience member to participate in the conference as more than a merely passive listening participant.