Patent ID: 6568591
Filing Date: 2003-05-27
Classification: B65H,G07D

Abstract:
A method comprising:moving at least one sheet generally along a sheet moving direction in a sheet path in an automated banking machine between an emitter and a receiver; wherein the at least one sheet has patterns of indicia thereon, wherein the indicia affect transmissivity of radiation through the at least one sheet, wherein the at least one sheet has a width in a direction generally transverse to the sheet moving direction, wherein the emitter and the receiver are positioned on opposed sides of the sheet path, wherein the receiver includes an apex area and a radiation sensitive element, wherein the radiation sensitive element is positioned away from the apex area in the sheet moving direction, wherein the receiver is operative to receive radiation from the emitter, wherein the emitter and the receive are generally transversely to the sheet extend a substantially equal elongated distance generally transversely to the sheet moving direction, and wherein the emitter and the receiver extend at least five percent of the width of the at least one sheet, passing radiation from the emitter through the at least one moving sheet generally transversely to the sheet moving direction; receiving with the receiver radiation passed through the at least one moving sheet; producing a signal with the receiver responsive to an amount of radiation passed through the at least one moving sheet that the receiver received from the emitter; comparing the produced signal to a threshold, wherein the threshold corresponds to overlapped sheets; determining whether the at least one sheet comprises overlapped sheets responsive to the comparison.