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:
Feb. 10, 2004
Filed:
Nov. 19, 2001
Applicant:
Inventor:
Cheng-Feng Sze, Cupertino, CA (US);
Assignee:
Canesta, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 ;
U.S. Cl.
CPC ...
G09G 5/00 ;
Abstract
In a three-dimensional data acquisition system, coordinate transformation and geometric error correction are avoided by representing data in a sensor array coordinate system (i,j,k) rather than a conventional (x,y,z) coordinate system. A preferably point-sized sub-region is defined for each potential region of interest for a virtual input device subject to interaction with a user-controlled object. The (i,j,k) coordinate system used relates to raw data, and correction for several types of geometric error and optical lens error are avoided by determining interaction with such raw coordinate data. As a result, substantial processing overhead may be avoided.