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:
Mar. 03, 2015
Filed:
Jul. 31, 2012
Samuel Henry Chang, San Jose, CA (US);
Weijian Wang, Cupertino, CA (US);
Sowmya Gopalan, Cupertino, CA (US);
Ning Yao, Cupertino, CA (US);
Yuhua Zhu, Fremont, CA (US);
Manika Puri, Santa Clara, CA (US);
Samuel Henry Chang, San Jose, CA (US);
Weijian Wang, Cupertino, CA (US);
Sowmya Gopalan, Cupertino, CA (US);
Ning Yao, Cupertino, CA (US);
Yuhua Zhu, Fremont, CA (US);
Manika Puri, Santa Clara, CA (US);
Rawles LLC, Wilmington, DE (US);
Abstract
Techniques are described for detecting a hand gesture made by a user. Fingertips of a hand may be identified and tracked over time. When a user contracts the fingertips from an extended position, hand spread may be calculated based on the area of the hand and fingers. The hand spread over time may be compared to a Gaussian function to evaluate whether the observed motion represents a grasping motion.