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:
Apr. 23, 2013
Filed:
Sep. 02, 2010
Vitaly Burkatovsky, Rishon le Zion, IL;
Vitaly Burkatovsky, Rishon le Zion, IL;
Eastman Kodak Company, Rochester, NY (US);
Abstract
An apparatus for discrimination between a first () and a second surface () type based on reflectivity has a light source () that illuminates on a media surface. A photosensor () receives and measures the reflection value from the surface. A first gain element adjusts a voltage from the photosensor and a second gain element adjusts a current measurement supplied to the light source. A subtractor () for subtracting the first adjusted voltage () and the adjusted measurement () are subtracted to provide an output value close to zero with respect to the second surface and near a maximum with respect to the first surface. The adjusted reflection value and a threshold reference value () are compared () and indicates whether the first surface or the second surface is present.