To provide a data transmitter and a data receiver capable of reproducing data even on the occurrence of the state that the data reception of television broadcast and radio broadcast is difficult.

The data transmitter includes: a transmission pattern generating unit 15 which generates transmission patterns including a plurality of division compression data and whose sequence in time series denoted by attached data included in the division compression data is revised into a prescribed sequence; a transmission packet data generating unit 16 which generates packet data corresponding to each of the division compression data of a prescribed number; and a data transmission unit 17 which transmits a plurality of the generated division compression data by each of the division compression data.