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. 15, 2010
Filed:
Oct. 16, 2003
Dale W. Schroeder, Scotts Valley, CA (US);
Marshall T. Depue, San Mateo, CA (US);
Ramakrishna Kakarala, Santa Clara, CA (US);
Tong Xie, San Jose, CA (US);
Gregory D. Vanwiggeren, Los Gatos, CA (US);
Dale W. Schroeder, Scotts Valley, CA (US);
Marshall T. DePue, San Mateo, CA (US);
Ramakrishna Kakarala, Santa Clara, CA (US);
Tong Xie, San Jose, CA (US);
Gregory D. VanWiggeren, Los Gatos, CA (US);
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
A system, method, and device for tracking motion across a surface by creating an interference pattern by reflecting light from the surface. There is produced, as a result of sensor moving across the surface, at least one signal pattern corresponding to a detection of a dimension of the interference pattern. This detected dimension is associated with an assumed dimensional value to determine a distance traveled by the sensor.