| 摘要 |
PROBLEM TO BE SOLVED: To improve the transmission efficiency of information by generating information on differences between the overall composite data to be transmitted and preceding overall composite data, which are transmitted precedently and have different contents from the whole composite data as difference composite data, putting the difference composite data and whole composite data in one data unit as object composite information, and sending it. SOLUTION: When a data unit, including an update command frame ADF (j), is inputted to the object composing device 100a, the ADF (j) is extracted from the data unit by an input means 102 and stored in a 1st memory 103. A data processing means 104 performs data processing, according to data stored in the 1st memory 103 and a 2nd memory 105 and stores the result in the 2nd memory 105. The data processing means 104 extracts constituting difference composited data Cds (j) and a command Cml (j) from the ADF (j) recorded in the 2nd memory 103. |
