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:
Sep. 30, 2014
Filed:
Jul. 21, 2009
Thomas J. Freund, Austin, TX (US);
Travis M. Grisby, Austin, TX (US);
Albert A. Lamb, Somerville, MA (US);
Lee M. Surprenant, Cary, NC (US);
Thomas J. Freund, Austin, TX (US);
Travis M. Grisby, Austin, TX (US);
Albert A. Lamb, Somerville, MA (US);
Lee M. Surprenant, Cary, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Provided is a Captcha Access Control System (CACS) for generating an improved captcha that are based, in one described embodiment, upon a command in one format and a response in a different format, one or both of which are rendered in a format that is difficult for an automated system to interpret. A computer system or program to which a user is requesting access generates a textual or audible command. A video device captures the user's response and transmits the response to a response evaluation device. Based upon an analysis of the transmitted video and a comparison between the analyzed video and the command, the computer or program either enables access or denies access.