Patent ID: 11895332
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A communication system comprising:
a first server device; and
a second server device, wherein
the second server device includes:
one or more processors configured to:
receive a plurality of transmission data from a transmitting device, the transmitting device dividing a plurality of data to be transmitted to the second server device into a plurality of divided data, and the transmitting device transmitting the plurality of transmission data including the plurality of divided data;
divide the plurality of transmission data into first data and second data, the first data being a portion of the plurality of transmission data and the second data being an other portion of the plurality of transmission data;
transmit the first data to the first server device that delivers transmission data to a receiving device;
store, in a storage, the second data and metadata indicating that the second data is not transmitted to the first server device;
receive a transmission request for the second data from the receiving device or the first server device;
transmit the second data to the first server device in response to the transmission request,
determine whether the second data is delivered to the receiving device by using the metadata; and
perform deleting by prioritizing all or part of the second data delivered to the receiving device.