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:
Jan. 31, 2017
Filed:
May. 28, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Bernard O. Geaghan, Salem, NH (US);
Michael Benton Free, St. Paul, MN (US);
Edward S. Hagermoser, Lancaster, MA (US);
Rachael P. Marino, Londonderry, NH (US);
Pradnya V. Nagarkar, Weston, MA (US);
Martin B. Wolk, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/03 (2006.01); G06K 9/22 (2006.01); G01C 21/20 (2006.01); G06K 19/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0321 (2013.01); G01C 21/20 (2013.01); G06F 3/0317 (2013.01); G06K 9/222 (2013.01); G06K 19/06037 (2013.01); G06K 19/06046 (2013.01);
Abstract
A digitizer system including a substrate having a position-unique photoluminescent indicia pattern. A stylus component receives optical signals indicative of the indicia pattern and determines therefrom the position of the stylus relative to the substrate. Methods of disposing indicia on the substrate, and styli suitable for sensing photoluminescent indicia are also described.