Abstract: The field of the invention relates to system and methods for video compression, and more particularly to systems and methods for video compression for low bit rate and low latency video communications. In one embodiment, a video communication system includes a first electronic device enabled to receive and display video data and a second electronic device configured to transmit video data to the first electronic device and be communicatively accessible by the first electronic device. The video data includes a plurality of frames, each frame having a plurality of macroblocks. The second electronic device includes a video encoder having a sub-system configured to progressively refresh the macroblocks of the frames in substantially uniform segments, determine whether there are macroblocks encoded with data from an unrefreshed macroblock in the segment last refreshed, and refresh the macroblocks encoded with data from an unrefreshed macroblock in the segment last refreshed.

Abstract: A method of audio and video synchronization may include capturing an image by each of a plurality of cameras. The images and audio may be compared with each other for synchronization.

Abstract: A method of audio and video synchronization may include capturing an image by each of a plurality of cameras. The images and audio may be compared with each other for synchronization.

Abstract: A wireless communication system configured for the efficient allocation of resources is provided. The wireless communication system can include a transmit system having a first set of one or more antennas each configured to transmit a data signal over a region to a receive system having a second set of two or more antennas each configured to receive the transmitted data signal. The transmit system can be configured to adjust a transmission parameter of a data signal based on a level of signal fading in the region to sustain a target bit rate, adjust a power and a bit rate at which a data signal is transmitted based on the level of signal fading in the region and select a subset of antennas within the first set of antennas to be used to transmit a data signal based on the level of signal fading in the region.

Abstract: The field of the invention relates to system and methods for video compression, and more particularly to systems and methods for video compression for low bit rate and low latency video communications. In one embodiment, a video communication system includes a first electronic device enabled to receive and display video data and a second electronic device configured to transmit video data to the first electronic device and be communicatively accessible by the first electronic device. The video data includes a plurality of frames, each frame having a plurality of macroblocks. The second electronic device includes a video encoder having a sub-system configured to progressively refresh the macroblocks of the frames in substantially uniform segments, determine whether there are macroblocks encoded with data from an unrefreshed macroblock in the segment last refreshed, and refresh the macroblocks encoded with data from an unrefreshed macroblock in the segment last refreshed.

Abstract: A wireless communication system configured for the efficient allocation of resources is provided. The wireless communication system can include a transmit system having a first set of one or more antennas each configured to transmit a data signal over a region to a receive system having a second set of two or more antennas each configured to receive the transmitted data signal. The transmit system can be configured to adjust a transmission parameter of a data signal based on a level of signal fading in the region to sustain a target bit rate, adjust a power and a bit rate at which a data signal is transmitted based on the level of signal fading in the region and select a subset of antennas within the first set of antennas to be used to transmit a data signal based on the level of signal fading in the region.