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.:

US 9667612 B1

PDF
Full Text
Expired
Date of Patent:
May. 30, 2017

Filed:

Jan. 06, 2012
Applicant:

Mitsuo Okada, Kyoto, JP;

Inventor:

Mitsuo Okada, Kyoto, JP;

Assignee:

Capy, Inc., Newark, DE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/31 (2013.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/08 (2013.01); G06F 21/31 (2013.01); G06F 2221/2133 (2013.01); H04L 67/02 (2013.01);
Abstract

[Problem] To selectively provide, in accordance with a user terminal a CAPTCHA that can be easily executed by an operator of the user terminal. [Solution] A web server () determines the type of web browser running in a user terminal (). An authentication server () decides a CAPTCHA execution program on the basis of the type of web browser that has been determined. The authentication server () executes the decided CAPTCHA execution program to generate problem data and correct answer data. The web server () provides the CAPTCHA to the user terminal () on the basis of the problem data. The authentication server () compares the correct answer data and answer data generated by the user terminal (), and determines whether authentication has succeeded or failed.


Find Patent Forward Citations

Okada, Mitsuo. (2017). Captcha provision method and program (U.S. Patent No. 9667612). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9667612

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