Patent ID: 6069874
Filing Date: 2000-05-30
Classification: H04W

Abstract:
A communication apparatus for receiving a selective call signal transmitted from a base station, said selective call signal including message data with a transmission number, said communication apparatus comprising:receiving means for receiving the message data transmitted from said base station as received message data;detection means connected to said receiving means, for detecting the transmission number in the received message data to produce a current transmission number;storing means, connected to said detection means, for storing, as a previous transmission number, the current transmission number of the latest received message data alerted;determining means, connected to said detection means and Bald storing means, for comparing the current transmission number with the previous transmission number to determine whether or not a difference between the current transmission number and the previous transmission aver is not less than two and is not more than a predetermined number which is not less than three; andalert means, connected to said determining means, for alerting transmission number omission when the difference is not less than two and is not more than the predetermined number.