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:
Jun. 29, 2021
Filed:
Oct. 03, 2019
Applicant:
Pixart Imaging Inc., Hsin-Chu, TW;
Inventors:
Assignee:
PixArt Imaging Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 7/20 (2017.01); H04N 5/232 (2006.01); G06T 7/246 (2017.01); G06T 7/73 (2017.01);
U.S. Cl.
CPC ...
G06T 7/248 (2017.01); G06T 7/74 (2017.01); H04N 5/23299 (2018.08); G06T 2207/30204 (2013.01); G06T 2207/30244 (2013.01);
Abstract
A marker detecting device comprising: an image sensor, comprising a plurality of difference sensing regions; and a processing circuit, configured to determine a marker exists when a first difference of pixel value data of images captured by different ones of the difference sensing regions is larger than a marker difference threshold and to determine the marker does not exist when the first difference is smaller than the marker difference threshold.