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. 19, 2013
Filed:
Jul. 31, 2009
Jason T Clark, Raleigh, NC (US);
Ami H Dewar, Durham, NC (US);
Robert C Leah, Cary, NC (US);
Nicolas E Poore, Durham, NC (US);
Peter C Yim, Raleigh, NC (US);
Jason T Clark, Raleigh, NC (US);
Ami H Dewar, Durham, NC (US);
Robert C Leah, Cary, NC (US);
Nicolas E Poore, Durham, NC (US);
Peter C Yim, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A server to implement human response tests of graduated difficulty can suppress access by spambots. The server includes a network interface and a test controller. The network interface connects the server to a network and facilitates electronic communications between the server and a client computer coupled to the network. The test controller is coupled to the network interface. The test controller implements a human response test with a level of difficulty on the client computer in response to an access request by the client computer. The level of difficulty of the human response test is dependent on a determination whether the access request is deemed to originate from a spambot.