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. 11, 2010
Filed:
Dec. 22, 2004
Dierk Schoen, Egelsbach, DE;
Dierk Schoen, Egelsbach, DE;
Pepperl + Füchs GmbH, Mannheim, DE;
Abstract
A method and device for the contactless detection of flat objects, particularly in sheet form, such as paper, films, foils, plates, and similar flat materials or packs. At least one correction characteristic is supplied to an evaluating device downstream of a sensor device, specifically a receiver, by means of which the characteristic of an input voltage of a measuring signal in the receiver is so simulated as a function of the gram weight or weight per unit area of flat objects as a target characteristic that there is a linear or almost linear dependence or a characteristic approximated to the ideal characteristic for single sheet detection in the form of a target characteristic.