Method and device of the compression of the information intended for the brief compatible with a family of television signals of the resolutions increasing

摘要

The method consists, at the level of the transmission encoder: - to be cut the strip of the spatial frequency of the signal to be transmitted with a resolution of the largest on - adjacent strips sb1, sb2; sb3a, sb4, sb5a and sb5b; sb1.. Sb6; - to be coded 2, 3, 4, 5, 6, 7, 8, independently of each under - strip, the signal of the highest resolution to be transmitted; - to be multiplexed 1 the - strips separating the coded signals in each under - strip by means of synchronization patterns not - imitable; / p & & p & and at the level of each reception decoder: - to be decoded 38.. 44 the received signals relating to each under - strip by considering only those which are necessary for the reconstitution of at least one member of the family of resolution. / p & & p & application: system for the transmission of high-definition television images.