METHOD OF PROCESSING DIGITAL CONTROL DATA RELATIVE TO HD-MAC TYPE VIDEO SIGNAL AND DEVICE ACCORDING TO THE SAME METHOD

摘要

PURPOSE: To eliminate a delay circuit as well as field memory and to reduce cost of the circuit by decoding digital control data in timedivision form. CONSTITUTION: A RAM control circuit 101 inputs DATV digital control data, stores the data in memory RAM 1 to 3 and controls the memory RAM 1 to 3 by cyclic permutation. A decoder 106 compensates delay due to processing of other data and outputs branch discriminating data BD0 to BD4 to which specified and desired delay is added. In addition, motion vector data MVO and MV2 are obtained in output of a multiplexer 108 with a motion vector MV address processing circuits 107 and 107'. And a serial bus formatting circuit 109 transmits required digital control data to video signal processing circuits ICO to ICX with serial buses BUS1 and BUS2.