Abstract: A cost effective continuously adaptive digital video system and method for compressing color video data for moving images. The method describes capturing an analog video frame and digitizing the image into a preferred source input format for compression using a combination of unique lossy and lossless digital compression techniques including subband coding, wavelet transforms, motion detection, run length coding and variable length coding. The system includes encoder and decoder (CODEC) sections for compression and decompression of visual images to provide high compression with good to excellent video quality. The compressed video data provides a base video layer and additional layers of video data that are multiplexed with compressed digital audio to provide a data stream that can be packetized for distribution over inter or intranets, including wireless networks over local or wide areas.

Abstract: In the disclosed invention, electronic signals containing both information signals and interference signals in one frequency band are received from an array of N antenna elements. These signals are multiplied by the respective complex weights u.sub.k +jv.sub.k where k varies from 1 through N. Each of the product terms thus formed is then summed and demodulated. The demodulated sum signal is bandpass filtered to form a signal S.sub.S which is representative of the sum of the demodulated information signals. Simultaneously, the demodulated sum signal is bandreject filtered to obtain a signal I.sub.S +N.sub.S which is representative of the interference signals. Utilizing signals S.sub.S and I.sub.S +N.sub.S, the complex weights are modified such that the time rate of change of u.sub.k and v.sub.k respectively is proportional to the time rate of change of T.sub.e with respect to u.sub.k and v.sub.k where T.sub.e is the ratio of power in signals S.sub.S and I.sub.S +N.sub.S.