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:
Jul. 05, 2005
Filed:
Jul. 05, 2001
John Philip Bolash, Lexington, KY (US);
Mahesan Chelvayohan, Lexington, KY (US);
John Philip Bolash, Lexington, KY (US);
Mahesan Chelvayohan, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
Media manipulation and sensing apparatuses having a media type detector and method for media type detection, wherein non-linear characteristics of light sensors used for measuring a media type are compensated for by adjusting for the light flux capability of one of the sensors to be greater than the light flux capability of another sensor, such that the ratio between the two sensors accurately represents the glossiness of an illuminated media. An algorithm technique is applied such that a value for a detected sensor signal, which falls in a non-linear range of a sensor characteristic curve, is extrapolated to a value that corresponds to a position on a projection of a linear portion of the sensor characteristic curve, and thereby measuring the glossiness based on the extrapolated sensor signal.