NETWORK SYSTEM, COMMUNICATION TERMINAL, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a communication terminal which can obtain data transmitted by another terminal while the communication terminal that has fallen in a state in which it does not receive the data for a fixed period is restored without needing a large scale memory. SOLUTION: The communication terminal 100A includes: a communication part 101A for transferring and receiving data between a second terminal 100B and a third terminal; a storing part 1031A for storing a portion of data to be transmitted and received; and a control part 106A for storing first data to be exchanged in a second state as second data in the storing part by detecting, by using the communication part, whether the second terminal is in a first state in which the second terminal can exchange first data with the communication terminal and the third terminal or in the second state in which the second terminal can not exchange the first data between the communication terminal and the third terminal, and transmitting the second data to the second terminal when detecting a transition from the second state to the first state. COPYRIGHT: (C)2011,JPO&INPIT