US 12,312,205 B2Granted

Apparatus and method for detecting skew of banknotes in ATM

AssigneeHyosung Tns Inc.

InventorsHyun Soo Jang, Jin You Lim, Da Hye Shin

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Abstract

The present invention relates to an apparatus for detecting a skew of banknotes in an automated teller machine (ATM), and particularly, to an apparatus for detecting a skew of banknotes in an ATM capable of more effectively and accurately detecting a defective conveying state of the banknotes passing through a conveying route by including sensors on the conveying route, where the banknotes put into the ATM are conveyed, at regular intervals from each other along a direction crossing the conveying route and detect tips of the banknotes passing through the conveying route to separately detect skew angles for each sector of the banknotes passing through the conveying route based on banknote tip detection signals detected from each detection sensor and support detection of various types of skews of the banknotes, including one-way skew of the banknotes and V-shaped skew at both ends inclined in different directions.

Claims7

Dependent claims

An apparatus for detecting a skew of banknotes conveyed along a conveying route in an automated teller machine (ATM), the apparatus comprising:

a plurality of detection sensors on a conveying route arranged to traverse the conveying route, the plurality of detection sensors configured to detect tips of the banknotes passing through the plurality of detection sensors and generate detection signals, the plurality of detections sensor comprising a center sensor, two first sensors at a first side of the conveying route relative to the center sensor and two second sensors at a second side of the conveying route opposite to the first side;
and
a microprocessor coupled to the plurality of sensors and configured to:
divide each of the banknotes into a first sector and a second sector along a direction that is perpendicular to a direction along which the conveying route extends,
determine a first skew angle of the first sector of each of the banknotes based on differences in timing at which the detection signals are generated by the center sensor and the two first sensors;
determine a second skew angle of the second sector of each of the banknotes based on differences in times at which the detection signals are generated by the center sensor and the two second sensors;
determine a skew amount of each of the banknotes by adding the first skew angle and the second skew angle.

4 more elements

Dependencies are inferred from the claim text.