The image processing unit for processing pixels of an image to be displayed on a display panel in a plurality of sub-fields is designed to perform motion compensation. The system comprises ATM aware Label Switching Routers at the edge of an MPLS network. A patterned masking layer is formed over the metal. When the damper door is open, chilled air from the freezer compartment is allowed to circulate through the damper assembly and through the compartment to provide a quick chill mode of operation. In addition the patient admittance may be compared with admittance during normal breathing to avoid having to characterize the airway. A pattern inspection method according to the present invention divides a circuit pattern using the brightness of a reflection electron image and associates the region in the reflection electron image belonging to each division with the region in a secondary electron image.