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1. (WO2018203437) COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, CONTROL METHOD THEREFOR, AND PROGRAM

Pub. No.:    WO/2018/203437    International Application No.:    PCT/JP2018/008034
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat Mar 03 00:59:59 CET 2018
IPC: G06F 13/00
H04N 5/232
Applicants: CANON KABUSHIKI KAISHA
キヤノン株式会社
Inventors: KOYAMA, Jun
小山 潤
Title: COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, CONTROL METHOD THEREFOR, AND PROGRAM
Abstract:
In order to enable a server side to interrupt transfer of information at a timing desired by a user in a pull transfer type communication protocol, according to the present invention, a client has a first request unit that transmits a content request to a server, and the server has a first response unit that transmits a content requested by the first request unit to the client. Further, the client has a second request unit that requests the server to give a response when a prescribed state is achieved, and the server has a second response unit that, upon reception of a request from the second request unit, suspends provision of a response when the prescribed state is not achieved, and transmits the response to the client when the prescribed state is achieved.