Method of unlocking a mobile telephone type wireless communication terminal
US7689204B2 · kind B2 · utility
17Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2004 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Feb 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/48
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a method of unlocking mobile telephones, in particular one using the “SIM-LOCK” method, the user of the telephone submits an unlocking request directly to the manufacturer of the telephone and the manufacturer sends unlocking information to the telephone after verifying with the operator that the user is entitled to unlocking. This simplifies the administration of unlocking requests and makes it more reliable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.