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. 24, 2011
Filed:
Sep. 21, 2005
Eugene Murphy O'donnell, Fishers, IN (US);
Eugene Murphy O'Donnell, Fishers, IN (US);
TTE Technology, Inc., Indianapolis, IN (US);
Abstract
The disclosed embodiments relate to a system and method for optical calibration of a picture modulator. More specifically, there is provided a video unit () comprising a modulator () configured to modulate a projection lens assembly () between a first position and a second position, a photodiode assembly () configured to produce a first voltage corresponding to a first pixel pattern generated when the projection lens assembly () is in the first position and to produce a second voltage corresponding to a second pixel pattern when the projection lens assembly () is the second position, and a video control system () configured to adjust the location of the second position based on the first and second voltages.