Patent ID: 6491216
Filing Date: 2002-12-10
Classification: G06K,G07F

Abstract:
Security system for use in cooperation with a media entry slot on a user interface of a self service terminal to control access of objects inserted through the media entry slot to a restricted zone within the self-service terminal, said objects having a predetermined profile defined by the positional relationship of at least three discrete points located thereon, the security system comprising:media detection means for detecting whether the leading edge of an inserted object through the media entry slot has the predetermined profile; and access control means responsive to the media detection means for allowing the inserted object detected as having the predetermined profile to pass to the restricted zone; the media detection means comprising three or more profile sensors spaced across a path of travel and located adjacent the media entry slot, said sensors cooperating together to detect the profile of the leading edge of the inserted object at three or more positionally related discrete points on the object such that only objects having a leading edge of the predetermined profile are authorized for access to the restricted zone.