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:
Jun. 26, 2012
Filed:
Mar. 09, 2010
Jonathan Frank, Mountain View, CA (US);
Jonathan Frank, Mountain View, CA (US);
Facebook, Inc., Menlo Park, CA (US);
Abstract
In one embodiment, accessing a first image of a CAPTCHA, wherein the CAPTCHA comprises: the first image; a challenge based on the first image; and a correct response based on the first image; constructing a second image by scrambling the first image, comprising: cutting the first image into a plurality of image sections; recording positions of the image sections in the first image; and randomly rearranging the image sections to construct the second image; generating web-browser-executable code for unscrambling the second image back to the first image, wherein the web-browser-executable code indicates, for each one of the image sections in the second image, the position of the image section in the first image; and transmitting the second image and the web-browser-executable code to a second computing device.