Patent application number | Description | Published |
20110186402 | CURRENCY DISCRIMINATION - A reference data set used for classifying items of currency is established by obtaining at least one measured response from at least one known item of currency, projecting the measured response data from the known item of currency from a first space to a second space, and applying a reduction technique to the second space thereby reducing the complexity of the second space. The reference data set, which can be used for classifying items of currency, is thus represented by a subset of all measured responses obtained from the known item of currency. | 08-04-2011 |
20110187095 | CLASSIFYING AND DISCRIMINATING AN ITEM OF CURRENCY BASED ON THE ITEM'S SPECTRAL RESPONSE - An unknown item of currency is compared to at least one known item of currency by evaluating the spectral response of the unknown item of currency. A spectral response is obtained from the unknown item of currency, and the spectral response of the unknown item of currency is separated into a first component and a second component. At least one component of the spectral response of the unknown item of currency is compared to at least one component of the spectral response of at least one known item of currency having a specific denomination. A determination is made as to whether the unknown item on currency is a member of the class of the at least one known item of currency. | 08-04-2011 |
20120118698 | CHARACTERIZING ITEMS OF CURRENCY - Characterizing an item of currency employs a validation apparatus that includes at least three specified light sources for illuminating the item of currency. Each of the specified light sources has an emission spectrum similar to an approximating function for reconstructing a predetermined set of spectrum. At least one receiver receives light emitting from the at least three specified light sources. A transportation unit transports the item of currency within the validation apparatus. The light received by the receiver is at least one of light reflected by or light transmitted through the item of currency. | 05-17-2012 |
20130199889 | Apparatus and Method for Characterizing Items of Currency - In one aspect, a validation apparatus comprises a light source capable of emitting a broadband spectrum of light for illuminating an item of currency. The validation apparatus also includes a receiver configured to receive light emitted from the light source. In another aspect, the validation apparatus also includes a transportation unit configured to transport the item of currency within the validation apparatus. In a further aspect, the validation apparatus also includes a processor configured to reconstruct a spectral response of the item of current. In this design, the light received by the receiver comprises at least a portion of light reflected by or transmitted through the item of currency. | 08-08-2013 |