| 摘要 |
<p>PROBLEM TO BE SOLVED: To make the efficiently usable a different non-volatile memory means by making plural non-volatile memory means store the data necessary for a controller by sorting the data according to the contents thereof. SOLUTION: The parameters common in the same line-of-sight(LOS) detector among the various parameters for executing LOS detection is stored in a flash memory 100b and the parameters individually varying with production errors or the variations in the characteristics and assembly of the parts to be used are stored in an EEPROM 100a. The data varying for every user like calibration data, are also stored in the EEPROM 100a. The controller has the flash memory 100b and the EEPROM 100a as the non-volatile memory means in such a manner and sorts the data to be stored therein respectively according to the contents thereof. Accordingly, the effective use of the good points of the respective characteristics of the flash memory 100 and the EEPROM 100a is made possible.</p> |
