Gerät zur verbesserten Dekodierung von HD-MAC-Fernsehsignalen.

摘要

Device for decoding television signals previously coded on broadcasting with a view to transmission carried out, depending on the movement observed in the original images, at a first, at a second or at a third rate. This device comprises: (A) a storage sub-unit (710) comprising three frame memories (711, 712, 713), (B) a sub-unit (720) for reconstructing grid cells and for filtering, comprising a first, a second and a third decoding channel (722, 726; 723, 727; 724, 728), and (C) a movement-compensation sub-unit (730) provided in order, alternatively, to store temporarily a movement-compensation signal during the restoring of frames of specified parity or to participate, with the aid of the said movement-compensation signal, in the restoring of the frames of opposite parity. Application : high-definition television receivers.