The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
Oct. 12, 1999
Applicant:
Inventors:
Peter Dunlop, Cheshire, GB;
Kevin Ashurst, Huddersfiels, GB;
Assignee:
Innovative Technology Limited, Oldham, GB;
Primary Examiner:
Int. Cl.
CPC ...
H01H 4/700 ;
U.S. Cl.
CPC ...
H01H 4/700 ;
Abstract
The optical sensor ( ) comprises a trapezoidal light guide ( ), a broadband light source ( ) fo illuminating a banknote via the light guide ( ) and sensors ( ) for detecting light reflected from the banknote via the light guide ( ). Filters ( ) are arranged in front of the sensors ( ). The light guide (34,104) is inclined relative to the banknote path ( ).