Brief description of the diffusion of the program has a high definition television receiver equalizer and is intended to receive such a program

摘要

The process and the receiver are intended to the installations of the diffusion of the program of high definition television, using a time division multiplex of image signals are analog and digital signals and data. It includes in the multiplex a first reference signal having a pseudo - random sequence transmitted at least once per image and is subjected to the reception, the image signals to an adaptive equalisation using the reference signal and the said sequence stored in the receiver. The receiver comprises, in addition to the decoding paths duobinary, 38, 40, 42, 44 and the clock recovery, a video channel comprising a transverse filter that is adaptive supplied by the signal samples hd - mac, provided with means for adaptation of its coefficients by comparison between the reference sequence received at the output of the filter and the reference sequence stored.