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. 29, 2011
Filed:
May. 01, 2009
Applicants:
Yi-zhong Wang, Plano, TX (US);
William R. Krenik, Garland, TX (US);
Inventors:
Yi-Zhong Wang, Plano, TX (US);
William R. Krenik, Garland, TX (US);
Assignee:
Vital Art & Science Incorporated, Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/02 (2006.01); A61B 3/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vision testing system and method to assess vision function. In one embodiment, the vision testing system comprises: (1) a display; (2) a computer coupled to the display and configured to provide dynamic images, each including a substantially constant fixed point of fixation; and (3) a human input device coupled to the computer, wherein responses from a test subject are fed back to the computer to assess the test subject's vision function.