摘要:
A data selector circuit (2) divides a group of data including a plurality of types of data into the plurality of types of data. A first compression circuit (4a) and a second compression circuit (4b) respectively compress the plurality of types of data in parallel with each other in accordance with each of the plurality of types of data. The first compression circuit (4a) compresses data (b1) and obtains compressed data (b2). The second compression circuit (4b) compresses data (c1) and obtains compressed data (c2). The data transmission circuit (6) transmits the compressed data (b2) and the compressed data (c2) to a terminal.