Abstract: An electronic device receives a first subscriber identity module (SIM) card and a second SIM card. The first SIM card and the second SIM card are compatible with a first protocol network and a second network. The electronic device can transmit voice data to a second electronic device via the first protocol network, and upload video data of the electronic device to a server via the second protocol network. The electronic device further downloads video data of the second electronic device from the server via the second protocol network.

Abstract: A Multipoint Control Unit (MCU) cascaded system is provided, which includes a plurality of MCUs under the management of a service management center. The cascade manner between the MCUs in the system is a reticulated cascade. A communications method for an MCU cascaded system, an MCU, and a service management center are also provided. In the embodiments of the present invention, because the connection and networking mode of MCUs in a cascaded system is changed, a transmission path passing the least MCUs can be selected according to a connection situation between the MCUs. Therefore, transmission delay and decrease of video and audio quality due to multiple forwarding by MCUs can be effectively avoided, and thus the media stream transmission time is reduced, and the play quality of the media stream is guaranteed in an overall manner.

Abstract: Automated wireless three-dimensional (3D) video conferencing is provided using a tunerless television device. A 3D video conference is automatically established with a wireless device capable of 3D video conferencing using a wireless communication interface of the tunerless television device. A first and a second two-dimensional (2D) video stream are received, using a camera interface module, from a first and a second video camera associated with the tunerless television device. A merged 3D video stream is created from the first 2D video stream and the second 2D video stream using a 3D video offload processing module operatively coupled to the camera interface module. The merged 3D video stream is sent to the wireless device using the wireless communication interface. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: In one implementation, a conference bridge connects endpoints in a media conference. The various endpoints may have a wide range of video capabilities and audio capabilities. The video conference bridge learns the video capabilities of the endpoints and formulates a media plan based on these capabilities. The media plan instructs the endpoints on the types of media streams to produce. The video conference bridge may shape a media stream received from one of the endpoints by removing one or more layers. Accordingly, each endpoint decodes only the media streams that can be encoded by another endpoint and receives the best possible media stream from each endpoint.

Abstract: A method including: obtaining a sequence of pictures from a camera associated with a video conferencing endpoint; determining a presence of a target point coinciding with an optical source within a field of view of the camera, wherein the optical source emits pulses of electromagnetic radiation at a rate that causes the camera to capture some frames with a pulse of electromagnetic radiation from the optical source and some frames without the pulse of electromagnetic radiation from the optical source; determining a location of the target point within one or more of the pictures by comparing a first frame from the camera that includes the pulse of electromagnetic radiation from the optical source and a second frame from the camera that does not include the pulse of electromagnetic radiation from the optical source; moving the camera so that a center of one or more subsequent pictures obtained by the camera coincides with the target point; and zooming the camera until receipt of an instruction to stop zooming is

Abstract: Disclosed herein are multimedia-conferencing systems and methods enabling local participants to hear remote participants from the direction the remote participants are rendered on a display. In one aspect, a method includes a computing device receives a remote participant's image and sound information collected at a remote site. The remote participant's image is rendered on a display at a local site. When the local participant is in close proximity to the display, sounds generated by the remote participant are played over stereo loudspeakers so that the local participant perceives the sounds as emanating from the remote participant's location rendered on the display.