Audio human verification
US8224655B2 · kind B2 · utility
3Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Sep 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2133
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system generates an audio challenge that includes a first voice and one or more second voices, the first voice being audibly distinguishable, by a human, from the one or more second voices. The first voice conveys first information and the second voice conveys second information. The system provides the audio challenge to a user and verifies that the user is human based on whether the user can identify the first information in the audio challenge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.