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:
Nov. 10, 2009
Filed:
Oct. 31, 2005
Applicants:
Masoud Zavarehi, Corvallis, OR (US);
Grant K. Garner, Corvallis, OR (US);
Inventors:
Masoud Zavarehi, Corvallis, OR (US);
Grant K. Garner, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); G03B 21/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of compensating in a projection system includes measuring a characteristic of ambient light incident on a screen; determining a gradient of the characteristic; and determining an adjustment to be applied to light to be projected using the gradient.