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.

Date of Patent:
Jul. 19, 2022

Filed:

Feb. 26, 2021
Applicant:

Hewlett-packard Development Company, L.p., Spring, TX (US);

Inventor:

Fred Charles Thomas, III, Fort Collins, CO (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/0346 (2013.01); G06F 3/03 (2006.01); G06F 3/041 (2006.01); G06F 3/0354 (2013.01);
U.S. Cl.
CPC ...
G06F 3/0346 (2013.01); G06F 3/0317 (2013.01); G06F 3/0321 (2013.01); G06F 3/03545 (2013.01); G06F 3/0418 (2013.01); G06F 3/03542 (2013.01); G06F 2203/04101 (2013.01);
Abstract

Determining locations of electro-optical pens. An example apparatus includes a distance determiner to determine a distance of a pen to a scribing surface based on a first image output by a first imager of the pen and a second image output by a second imager of the pen, the first image associated with a first plane of view and the second image associated with a second plane of view; a tilt orientation determiner to determine a tilt orientation of the scribing surface relative to the pen; a corrector to adjust at least one of the first plane of view or the second plane of view based on the tilt orientation of the scribing surface; and a location determiner to determine a location of the pen relative to the scribing surface based on the at least one of the adjusted first plane of view or the adjusted second plane of view.


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