Transmission apparatus and reception apparatus for message and method of data extraction

摘要

A reception apparatus which receives a first and second message includes a determination unit configured to determine correspondence between the first message and the second message, an acquisition unit configured to acquire data length information expressing a data length from the first message, and an extraction unit configured to extract data which has the data length based on the data length information from the second message when the determination unit determines that the first message corresponds to the second message.

主权项

1. A transmission apparatus which transmits a first and a second message and a reception apparatus which receives the first and second message, the transmission apparatus comprising:
a generation unit configured to generate the first message so that the first message describes data length information respectively of each part of the second message corresponding to the first message; and a transmission unit configured to transmit the first and the second messages to a reception apparatus, wherein the first message is transmitted earlier and the second message is transmitted after being notified from the reception apparatus that the first message has been held on the reception apparatus and the reception apparatus has been available to receive the second message which includes a plurality of parts of data, wherein the reception apparatus detects a boundary position of the part data of the second message based on data length information acquired from the first message.