Image analysis – Applications – Reading paper currency
Patent
1996-02-20
1998-08-25
Chang, Jon
Image analysis
Applications
Reading paper currency
G06K 900
Patent
active
057991022
ABSTRACT:
The invention concerns a bank note scanner (2) for assessing the authenticity of a bank note, which includes a vacuum pump (4), an olfactory sensor (8), an authentication means (28) for producing an electrical output indicative of the authenticity of a bank note, and suction means (10) connected to the vacuum pump (4) via the olfactory sensor (8). In operation, a bank note is fed through an entry slot (50) in the scanner (2) into co-operative relationship with the suction means (10) such that the bank note covers, and is sucked against, the suction means (10), thus enabling the sensor (8) to test the note. The authentication means (28) comprises a neural network (26) which can be taught the olfactory characteristics of an authentic bank note. The authentication means (28) is arranged to make a determination of the authenticity of the bank note based on the comparison of the electrical output of the olfactory sensor (8) and the olfactory characteristics of one or more authentic bank notes.
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Saunders et al. "An Artificial Olfactory System Using Tiered Artificial Neural Networks." Proc. 1994 2nd Australian and New Zealand Conf. on Intelligent Info. Systems, pp. 76-80, Dec. 1994.
Chan Michael
Chang Jon
NCR Corporation
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