| 摘要 |
PURPOSE:To process information with a small amount of memory capacity by matching scan information outputted by a period scanner to detected period information so as to store temporarily the information of one period and taking out only useful information so as to store it. CONSTITUTION:Useful information 2 is included in an area 1 where a circularly drawn search work, for instance, is executed. The period scanner 3 incorporating a drive mechanism scans the period of the area 1, and outputs the scan information. After the scanner 3 scans one period, it is moved so that the it can scan the period of the area 1 formed in the same mode as before. A temporary information memory device 5 stores the scan information by matching it to the period position detected by a periodical position detector 4. A useful information detector 6 takes out the information satisfying the preset conditions as the useful information together with a periodical position, out of a piece of information stored in the device 5, closes a switch and stores said information in a useful information memory device 7. Thus remote sensing can be possible with a small memory capacity. |
