FILE TRANSMISSION SYSTEM
For improving operability by reducing time for backup of video/audio files through a network, and also for achieving to shorten processing time, as well as, to lower a capacity of a recording medium, by inhibiting unnecessary backup, a file transmission system includes a file list obtaining portion for obtaining a list of files, which are stored in a server, a file transmission controller portion for controlling file transmission, a file transmission requesting portion for requesting a file transmission to the server, a file receiver portion for receiving the file transmitted form the server, and a client file storage portion for storing the files therein, wherein control is made on the file transmission requesting portion, so that it requests a transmission of file(s), excepting the file(s), which is/are stored in the client file storage portion, to the server, upon basis of the list.
1 . A file transmission system, comprising:
a server, which is configured to conduct file transmission; and
a client, which is connected with said server through a network, wherein
said server comprises:
a server file storage portion, which is configured to store a file therein;
a file list transmitter portion, which is configured to produce a list of files stored within said server file storage portion and transmit it, responding to a request from said client; and
a file transmitter portion, which is configured to transmit a file(s) stored within said server file storage portion, responding to a request from said client, and
said client comprises:
a server detector portion, which is configured to detect that said server is under a condition of being able to transmit a file;
a file list obtaining portion, which is configured to obtain a list of file(s) stored within said server;
a file transmitter controller portion, which is configured to control file transmission;
a file transmission request portion, which is configured to request a file transmission to said server;
a file receiver portion, which is configured to receive the file transmitted from said server; and
a client file storage portion, which is configured to store a file(s) therein, wherein
said file transmission controller portion is started upon detection by said server detector portion, that a new server is under the condition of being able to transmit a file, and controls said file transmission request portion, so as to request a transmission of a file, excepting the file (s) stored within said client file storage portion, to said server, upon basis of said list.