Abstract: The present invention is directed towards an improved method and system for compressing video images. In one embodiment, the system of present invention performs compression of digital video by converting pixels from the red, green and blue (RGB) color space to the luminance color, blue color difference and red color difference (YCbCr) color space, quantizing each Y, Cb, and Cr value into a specified number of bits each, and rearranging the Y, Cb, and Cr values into Cb, Cr, Y to create a word. The system of present invention further involves computing a pair of distinct characteristic code values for each word, which are coded and concatenated to produce the final bitstream.

Abstract: The present invention relates to improved methods and systems for transmission of images overlaid on video, particularly images requiring high levels of responsivity (e.g. mouse pointers) relative to the underlying video, from a computing device to a television. In one embodiment, the present invention is directed to a method of transmitting at least one video frame with an overlaid image, comprising the steps of capturing at least one frame of video data separate from the overlaid image at a first rate, capturing the overlaid image separate from the frame of video data at a second rate, packetizing the captured frame of video data, packetizing the overlaid image, wherein the frame video data are in data packets separate from the overlaid image data packets, and transmitting separate video data packets and overlaid image data packets.