Interpolation method and receiving system for digital broadcast

In a receiving terminal (201), while a dropout of digital data is predicted which is caused by an instantaneous interruption of digital broadcasting electromagnetic waves, such digital data whose dropout may be predicted is previously acquired via a communication from a broadcasting station (120), or via a broadcasting electromagnetic wave. Then, the acquired digital data is stored on the side of the receiving terminal. When a dropout of digital data (312) actually occurs, this dropped digital data is interpolated based upon previously prepared interpolation data (322) on the side of the receiving terminal so as to prevent an interruption of the digital broadcast. When the dropout of the digital data is predicted, it is not only predicted that the digital data is completely dropped, but also such a condition where a dangerous state is expected is predicted with margin.