TRANSMITTER, TRANSMISSION METHOD, RECEIVER, RECEPTION METHOD, TRANSMISSION RECEPTION SYSTEM AND TRANSMISSION RECEPTION METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently distribute data while suppressing increase in a load on a receiver. SOLUTION: When an object (contents) registered in a database 3 is updated by a server 2, a subject that is data to reflect updated contents on an object before being updated is generated. Furthermore, the server 2 generates an event that is data denoting a fact of an updated object and informing an acquisition method of the subject and distributes it simultaneously via a broadcast network such as a satellite channel. A equipment terminal 5 receives the event and acquires the subject to reflect update contents of the object whose update is informed by the event. That is, the event describes the acquisition method of the subject and the reception terminal 5 acquires the subject based on the acquisition method.