Method and apparatus using a CAPTCHA having visual information related to the CAPTCHA's source
US9104854B2 · kind B2 · utility
4Cited by
1References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Sep 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2133
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for visual verification a Captcha's source. In the method, a Captcha is served to a user. The Captcha includes visual information related to a characteristic of a source of the Captcha and related to a puzzle question of the Captcha. The visual information is for visual verification by the user of the Captcha's source. A response is received from the user based on the served Captcha. A determination is made as to whether the received response is a solution of the puzzle question of the served Captcha.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.