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:
May. 10, 2011
Filed:
Jul. 30, 2004
Applicant:
Dietrich W. Vook, Los Altos, CA (US);
Inventor:
Dietrich W. Vook, Los Altos, CA (US);
Assignee:
Avago Technologies ECBU IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Reduction of dust contamination in optical mice. Trapped charged particles within an optical element result in a surface charge on the optical element, the surface charge reducing the attraction of dust to the optical surface. Charged particles may be trapped in the optical element, or in a coating on the element. Irradiation from an alpha source or ion implantation techniques may be used.