| 摘要 |
The wireless communication apparatus has a flash memory in which a plurality of sectors are formed to make partitions so that at least two of the sectors are allocated for storing the positional record information. The positional-record information is stored in one of the at least two allocated sectors, whereas at least one of the remaining sectors are controlled so as to be used as an empty sector storing no information. When positional-record information for updating is given, the information is updated and stored in at least one of the remaining sectors, that is, in the aforementioned empty sector. After updating and storing of the information is completed, the information stored in the sector storing the pre-update positional-record information is eliminated. Although it takes a long time to eliminate the information stored in the sector, the above arrangement does not require the processing of eliminating the information during the period between the starting of updating the positional-record information and the completion of updating and storing the information in the flash memory. As a result, the time required for updating the positional-record information can be reduced. |
