SERVICE CONFIRMATION METHOD

摘要

PROBLEM TO BE SOLVED: To surely discriminate whether or not a service at an alternate frequency is the same as a service at a frequency that is being received at present. SOLUTION: The correlation between a set of 1st samples extracted from a signal based on the service sent at an alternate frequency at a 1st time and a reference signal is checked, and furthermore, the correlation between a set of at least one sample extracted from the signal based on the service sent with the alternate frequency and the reference signal is checked and the results of the correlation are compared.