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:
Feb. 17, 2009
Filed:
Jan. 25, 2008
Barrie Clark, Dundee, GB;
Stuart W. Masterton, Newtyle, GB;
Barrie Clark, Dundee, GB;
Stuart W. Masterton, Newtyle, GB;
NCR Corporaiton, Dayton, OH (US);
Abstract
A method is provided of operating a card reader having a substantially planar delivery path which lies in a first plane and which extends between a mouth region of the card reader and a data reader portion of the card reader. The method comprises projecting light across the planar delivery path and in a second plane which is substantially parallel to the first plane, detecting light which has been projected across the planar delivery path and in the second plane which is substantially parallel to the first plane, and generating a signal which is indicative of a foreign object being disposed in the planar delivery path in response to the amount of detected light being attenuated.