Radio paging receiver and message erasing method

摘要

Message data are picked up by using a decoder 2 from received signals received by a receiver portion 1 of a radio paging receiver, and stored in a RAM 4 a of a CPU 4 . An informing portion 9 informs a user of the message. The user designates any character sequences in the message stored in the RAM 4 a by a character sequence designating unit 4 b. A character sequence retrieving unit 4 c retrieves whether or not designated character sequences are contained in stored messages. When the messages containing the designated character sequences are detected, a time counting unit 4 d monitors whether or not a predetermined time has been lapsed after storage of concerned messages. An erasing unit 4 e erases unnecessary messages stored in the RAM 4 a from the RAM 4 a after the predetermined time has been lapsed. Accordingly, the messages which are transmitted periodically and repeatedly to the radio paging receiver can be erased collectively and automatically and thus complicatedness in erasing the messages can be eliminated and also operability can be enhanced.