| 摘要 |
PURPOSE:To improve the reliability of control by adding an SUM or CRC check code to important data stored in a memory area, and checking the important data with the check code when the data is used. CONSTITUTION:The important data which should be reliable for control is stored in the memory area A and a check code such as the SUM or CRC check code is stored in an area B. When the data stored in the area A is used, it is checked with the check code stored in the area B before it is used. Consequently, the reliability of the control over a facsimile device, etc., is improved. |
