DEVICE AND METHOD FOR TELETEXT BROADCASTING DATA SAMPLING

摘要

PROBLEM TO BE SOLVED: To provide a teletext broadcasting data sampling device and a teletext broadcasting data sampling method which can perform sampling of teletext broadcasting data from a plurality of teletext broadcasting and the correct sampling even when phase shift etc. is generated. SOLUTION: A clock run in period 28a in the unit of sampling clock is obtained by an initial sampling pulse generating circuit 108, classification of teletext broadcasting is judged from the clock run in period 28a, a sampling pulse interval value 28b according to the classification is generated in the unit of sampling clock, the initial sampling pulse S8 which specifies a position of data within a binarization signal S7 located separating an interval nearest to this sampling pulse interval value 28b as a sampling position is prepared, and the data are sampled from the binarization signal S7 based on the pulse S8.