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, 2015
Filed:
Oct. 04, 2010
Kunal Punera, San Francisco, CA (US);
Shanmugasundaram Ravikumar, Berkeley, CA (US);
Anirban Dasgupta, Berkeley, CA (US);
Belle Tseng, Cupertino, CA (US);
Hung-kuo (James) Chu, Tainan, TW;
Kunal Punera, San Francisco, CA (US);
Shanmugasundaram Ravikumar, Berkeley, CA (US);
Anirban Dasgupta, Berkeley, CA (US);
Belle Tseng, Cupertino, CA (US);
Hung-Kuo (James) Chu, Tainan, TW;
Yahoo! Inc., Sunnyvale, CA (US);
Abstract
A method of generating a time managed challenge-response test is presented. The method identifies a geometric shape having a volume and generates an entry object of the time managed challenge-response test. The entry object is overlaid onto the geometric shape, such that the entry object is distributed over a surface of the geometric shape, and a portion of the entry object is hidden at any point in time. The geometric shape is rotated, which reveals the portion of the entry object that is hidden. A display region on a display is identified for rendering the geometric shape and the geometric shape is presented in the display region of the display.