Handheld device and method for unlocking the handheld device
US8914877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2013 |
| Grant date | Dec 16, 2014 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/31
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for unlocking a handheld device with a touch screen includes accessing a social network using login information, acquiring information of a plurality of friends from the social network. The method further includes creating an unlocking interface on the touch screen according to a second amount of a secondary key based on the plurality of friends and a question based on the first amount of a primary key based on the plurality of friends. An input event of a user on the unlocking interface is detected the handheld device is transitioned from a lock state to an unlock state upon the condition that the input event corresponds to a correct answer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.