| 摘要 |
PURPOSE: A method for using compressed image data for partially updating mass image data is provided to partially updating the mass image data by preventing the share of a memory resource. CONSTITUTION: A client device transmits a request message about an update file information to a service server in network(S62). The client device determines whether the update file information is received(S63). The client device determines whether the validity of the received update file information(S66). The client device requests the update file corresponding to the received update file information in the service server(S68). The client device queues until the update file is received from the service server(S69).
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