专利汇可以提供Numerical controller专利检索,专利查询,专利分析的服务。并且PURPOSE:To prevent an external recording medium in which a system software has been written, from being appropriated for other device, by putting an identification code to the surface of the external recording medium, and reading this identification number. CONSTITUTION:On a label 21 which has been affixed onto the surface of a jacket of a floppy disk 20, an identification code 21a corresponding by one-to-one to a device to which a system software is loaded from the floppy disk 20 is displayed by, for instance, a bar-code. In this state, an identification code detecting device 4a provided on an inserting part of a floppy disk of a floppy disk driving device 4 reads the bar-code 21a of the label 21 the inserted floppy disk, and when it has coincided with a code of its device itself, a detecting signal for allowing to load the system software to a RAM 2 is generated. In such a way, it is prevented that an external recording medium, namely, the system software is appropriated to other device.,下面是Numerical controller专利的具体信息内容。
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