Data communication apparatus for high-speed identification of adaptive bit rate, communication system, data communication method, and program

A data communication method for a data communication apparatus that comprises a transmission-reception part which transmits and receives data between a client terminal and a server, comprising:

• ABR determining whether or not a data transmission from the server to the client terminal is based on an ABR (Adaptive Bit Rate) distribution scheme according to a change ratio of a data amount between a first cycle term and a second cycle term following the first cycle term, and a change ratio of a cycle length between the first cycle term and the second cycle term following the first cycle term,
• transmission scheme determining a data transmission scheme upon transmitting a received data from the server to the client terminal according to a result of the ABR determining, and,
• transmitting the received data from the server to the client terminal by the data transmission scheme determined by the transmission scheme determining.

A computer readable non-transient recording medium storing a program executed by a computer installed to a data communication apparatus that comprises a transmission-reception part which transmits and receives data between a client terminal and a server, causing the computer to perform processings of:

• ABR determining whether or not a data transmission from the server to the client terminal is based on ABR (Adaptive Bit Rate) distribution scheme according to a change ratio of a data amount between a first cycle term and a second cycle term following the first cycle term, and a change ratio of a cycle length between the first cycle term and the second cycle term following the first cycle term,
• transmission scheme determining the data transmission scheme upon transmitting a received data from the server to the client terminal according to a result of the process of ABR determining,
• transmitting the received data from the server to the client terminal by the data transmission scheme determined by the process of scheme determining.