METHOD FOR BROADCASTING HIGH-DEFINITION TELEVISION PROGRAM AND EQUALIZER RECEIVER FOR RECEIVING SUCH A PROGRAM

摘要

P The method and receiver are for high definition television program broadcasting facilities, using a time multiplex of analog image signals and digital sound and data signals. A first reference signal having a pseudo-random sequence transmitted at least once per image is included in the multiplex and, on reception, the image signals are subjected to an adaptive equalization using the reference signal and said sequence stored in the receiver. The receiver comprises, in addition to the duobinary decoding channels 38, 40, 42, 44 and clock recovery, a video channel comprising an adaptive transverse filter fed by the samples of the HD-MAC signal, provided with adaptation means of its coefficients by comparison between the reference sequence received at the output of the filter and the stored reference sequence. / P