Efficient direct call database management for mobile devices with limited non-volatile memory
US6795706B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Apr 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
27A central database is provided on an external device, such as a personal data assistant (PDA), that is used for local phone number translation. A communications link is provided between a mobile telephone and the central database to allow accessing and indexing of the central database. The mobile telephone obtains identification information from a base station upon which the mobile telephone is camped. The communications link is used to extract local phone number translation information from the central database by indexing with the identification information to obtain corresponding local phone number translation information. The mobile telephone then provides local phone number translation using the local phone number translation information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.