An image conversion unit (400,700) for converting an input image with an input aspect ratio into an output image with an output aspect ratio being different from the input aspect ratio, is disclosed.

In the arrangement of magnifications of the unit width, a defined barcode pattern is matched with the input width pattern, thereby recognizing the barcode.

This configuration makes it possible to store detailed data on shared nodes without increasing the entry width of the first directory.

The tulip contact comprises a free entry width in an unloaded state that approximately corresponds to the prescribed blade thickness.