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. 18, 2014
Filed:
Jan. 27, 2010
Simon P. King, Berkeley, CA (US);
Simon P. King, Berkeley, CA (US);
Yahoo! Inc., Sunnyvale, CA (US);
Abstract
A method for generating a multi-frame image rendering of a challenge-response test on a display is presented. The method begins by identifying a pattern with graphical elements, and a display region for rendering an entry object of the multi-frame image of the challenge-response test. Then a foreground sampling window having a non-patterned area defined by the entry object is defined. The foreground sampling window captures graphical elements of the pattern along a first path. In addition, a background sampling window that captures graphical elements of the pattern along a second path is defined. The foreground sampling window is overlaid on the background sampling window at the display region of the display, such that the entry object of the challenge-response test is discernable from the pattern during a period of time when multiple frames are rendered.