Patent ID: 8447878

Claim:
A receiving apparatus comprising: a relayed dummy data receiving unit for receiving relayed dummy data including dummy data of n bytes (n≧1) and/or dummy data of N bytes (N≧n) from a relay server, and the relayed dummy data is sequentially and repetitively transmitted from a transmitting apparatus to the relay server; a transmission data receiving unit for receiving transmission data transmitted by the relay server; and a buffer setting detecting unit for detecting a buffer setting of the relay server based on a first size value indicative of data size of relayed dummy data received for the first time by the relayed dummy data receiving unit and a second size value indicative of not larger data size of relayed dummy data received for the second time and relayed dummy data received for the third time; wherein the buffer setting indicates a quantity of instances that the relay server buffers a predetermined amount of the transmission data transmitted to the transmission data receiving unit.