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:
Sep. 11, 2007
Filed:
May. 04, 2005
David A. Lehoty, Mountain View, CA (US);
Charles B. Roxlo, Saratoga, CA (US);
Jahja I. Trisnadi, Cupertino, CA (US);
Clinton B. Carlisle, Palo Alto, CA (US);
David A. Lehoty, Mountain View, CA (US);
Charles B. Roxlo, Saratoga, CA (US);
Jahja I. Trisnadi, Cupertino, CA (US);
Clinton B. Carlisle, Palo Alto, CA (US);
Silicon Light Machines Corporation, San Jose, CA (US);
Abstract
One embodiment described relates to an optical displacement sensor for sensing movement of a data input device across a surface by detecting displacement of optical features in a succession of images of the surface. The sensor includes a detector having an array including a number (N) of sets of photosensitive elements, each set having a number (M) of photosensitive elements, where M is greater than two and not equal to four. Signals from each of the photosensitive elements in a set are electrically coupled or combined with corresponding photosensitive elements in other sets to produce a total of M independent group signals from M interlaced groups of photosensitive elements. Other embodiments are also described.