Assigning new passcodes to electronic devices
US9870452B1 · kind B1 · utility
3Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2010 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2131
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic book distribution system includes electronic devices that reset their passcodes after specified authentication failures. The passcodes of an individual electronic device is reset to a value that is generated using a predefined function of a randomly generated support code. The support code is displayed to the user, and the user is instructed to contact a support service in order to obtain the new passcode. The support service independently authenticates the user, calculates the new device passcode using the same predefined function used by the electronic device, and provides the new passcode to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.