Method for checking validity of data set in e.g. ticket used for entry into cinema hall, involves comparing reconstruction data set in transmitted acoustic signal sequence, and stored comparison data set to verify validity of data set

摘要

The method involves encoding the uniquely assigned data set of acoustic signal sequence. The signal data set is transferred from data processing units (110, 210) to mobile terminals (130, 230). The acoustic signal sequence is reproduced by mobile terminal, and is received by communication devices (160, 260) which has acoustic receiver. The validity of the data set is verified by comparing the reconstruction data set in transmitted acoustic signal sequence, and comparison data set stored in database (225). Independent claims are included for the following: (1) data processing device; (2) system for checking validity of data set; and (3) computer program for checking validity of data set.