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. 28, 2020
Filed:
Jul. 21, 2016
Hewlett-packard Development Company, L.p., Houston, TX (US);
John Michael Heineck, Boise, ID (US);
Tiffany L Greyson, Boise, ID (US);
Derek Wade, Boise, ID (US);
Tyelisa C Shields, Boise, ID (US);
Adam Greystone, Boise, ID (US);
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
In an example, an apparatus is described that includes a transparent platen, a substrate, an array of light sources, and a sensor. The substrate is positioned on one side of the platen and has substantially uniform reflective properties. The array of light sources is positioned on an opposite side of the platen from the substrate and includes a plurality of light sources that emits light in a visible spectrum and a light source that emits light in an invisible spectrum. The sensor is positioned on the opposite side of the platen from the substrate and detects reflected portions of the light in the visible spectrum and the light in the invisible spectrum.