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:
Nov. 20, 2012
Filed:
Jul. 09, 2007
Ke-cai Zeng, Fremont, CA (US);
Yansun Xu, Mt. View, CA (US);
John Frame, Arcadia, CA (US);
Brett A. Spurlock, Los Altos, CA (US);
Steven Sanders, Belmont, CA (US);
Ke-Cai Zeng, Fremont, CA (US);
Yansun Xu, Mt. View, CA (US);
John Frame, Arcadia, CA (US);
Brett A. Spurlock, Los Altos, CA (US);
Steven Sanders, Belmont, CA (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
One embodiment relates to a user input device for tracking motion. The device includes a tracking ball and a user-accessible touching area for user manipulation of the tracking ball. First and second two-dimensional sensors are positioned at tracking heights away from the tracking ball. The first two-dimensional sensor may be positioned across the tracking ball and opposite to the user-accessible touching area. The second two-dimensional sensor may be positioned at an angle with respect to a z-axis defined as extending from the user-accessible touching area through a center of the tracking ball to the first two-dimensional sensor. Other embodiments, aspects and features are also disclosed.