| 摘要 |
A module ( 10 ) for validating deposited media items is described. The module comprises: illuminating means ( 24 ) for illuminating a deposited media item ( 20 ); directing means ( 34 ) for directing illuminations from the illuminating means ( 24 ) to an examination area ( 22 ); optical detecting means ( 26 ) for detecting emissions from the deposited media item ( 20 ) at the examination area ( 22 ), where the emissions are caused by the illuminations; and processing means ( 32 ) for processing the detected emissions. The processing means ( 32 ) is operable in either a first mode, in which the deposited media type is known, or in a second mode, in which the deposited media type is not known. The illuminating means ( 24 ) includes ultra-violet radiation, infra-red radiation, and discrete primary colors.
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