| 摘要 |
PROBLEM TO BE SOLVED: To reduce the quantity of data before and after conversion of them and also to reduce the quantity of information to be stored and managed to improve the processing efficiency, by reducing the quantity of data to be stored in a storage device via an input filter and restoring the reduced data into the original one via an output filter. SOLUTION: An input filter 10 reduces the quantity of input data 100 based on a rule set previously and sends the reduced data 100 as the conversion data 101. A storage device 20 stores the data 101. Then an output filter 30 reads the data 102 out of the device 20, generates the input data corresponding to the data 102 based on a rule set previously, and sends the input data as the output data 103. The filter 10 stores the condition set previously and the contents of a register group in the device 20 together with the data 101. The filter 30 reads the said condition and contents of the register group out of the device 20 together with the data 102 and generates the corresponding input data. |
