Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2007-01-30
2007-01-30
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C356S071000, C382S135000
Reexamination Certificate
active
10363501
ABSTRACT:
A device for sensing currency comprises means for deriving a signal from a currency item and means for deriving values representative of a characteristic or characteristics of the currency item from said signal using an inverse representation of part of the sensing device.
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patent: 5304813 (1994-04-01), De Man
patent: 5498879 (1996-03-01), De Man
patent: 6172745 (2001-01-01), Voser et al.
patent: 2005/0040773 (2005-02-01), Lebens et al.
patent: WO 97/26626 (1997-07-01), None
Allen Stephone B.
Fish & Richardson P.C.
MEI, Inc.
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