DATA RECEIVER AND ITS PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a data receiver for receiving a transmission frame transmitted from the data transmitter which transmits a data capable of easily specifying a data body structure in the case of the occurrence of a transmission error.

SOLUTION: A data receiver 2 comprises: a demodulation means 20 for demodulating a digital modulated signal; a frame decoding means 21 for detecting a transmission frame from a demodulated signal; an error detection means 22 for detecting an error in a slot using an error detection code added to the slot; a data invalidating means 23 for invalidating a data between a tail position indicated by a most recent tail pointer information transmitted before than an error detected slot and a head position indicated by a most recent head pointer information transmitted after than the slot, as a packet with errors; and a packet extracting means 24 for extracting a packet from data in every slot on the basis of the pointer information.

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