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. 05, 2006
Filed:
Apr. 26, 2003
Paul D. Bliley, Vancouver, WA (US);
William Eaton, Vancouver, WA (US);
William D. Meyer, Ramona, CA (US);
Paul D. Bliley, Vancouver, WA (US);
William Eaton, Vancouver, WA (US);
William D. Meyer, Ramona, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A scanning mechanism of one embodiment of the invention is disclosed that includes light-emitting units, an integrating detector, and pulse-width modulated (PWM) drivers. Each light-emitting unit can emit colored light corresponding to a color of a color space. The integrating detector can detect the colored light emitted by the light-emitting units as reflected off a surface by integrating the colored light detected over a period of time. Each PWM driver can turn on a corresponding light-emitting unit at a duty cycle.