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. 26, 2008
Filed:
Jun. 20, 2004
David K. Biegelsen, Portola Valley, CA (US);
Bryan Preas, Palo Alto, CA (US);
Lars Erik Swartz, Sunnyvale, CA (US);
Warren B. Jackson, San Francisco, CA (US);
David K. Biegelsen, Portola Valley, CA (US);
Bryan Preas, Palo Alto, CA (US);
Lars Erik Swartz, Sunnyvale, CA (US);
Warren B. Jackson, San Francisco, CA (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
Apparatus and method for sensing the position, size, shape and location orientation of one or more objects in two dimensions. The position sensor uses arrays of light sensors mounted on a substrate. When an object passes in proximity to the light sensors light energy from a plurality of light sources is either reflected from the object to the light sensors, or is emitted directly to the light sensors. The light energy is then converted to individual signals and transmitted through circuit traces in a printed circuit board to a local controller. The information may then be processed to determine the size, position, shape and location orientation of an object.