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. 01, 2019
Filed:
Jan. 20, 2015
Applicant:
Promethean Limited, Blackburn, Lancashire, GB;
Inventor:
Andrew Oakley, Blackburn, GB;
Assignee:
Promethean Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/033 (2013.01); G06F 3/041 (2006.01); G06F 3/03 (2006.01); G06F 3/044 (2006.01); G06F 3/0354 (2013.01); G06F 3/042 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0418 (2013.01); G06F 3/03 (2013.01); G06F 3/03545 (2013.01); G06F 3/03547 (2013.01); G06F 3/044 (2013.01); G06F 3/0423 (2013.01); G06F 2203/04101 (2013.01); G06F 2203/04104 (2013.01);
Abstract
There is disclosed a technique for detecting the presence of a pointing device at an interactive surface, which interactive surface is provided with an illumination field for detecting a contact point.