Mobile radio-telephone terminal with controlled usage
US6546240B2 · kind B2 · utility
2Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile radio-telephone terminal includes a radio means activated by a chip card. The chip card includes a memory containing a subscriber identification word (PIN, IMSI) and is connected to an input of a comparator. The terminal comprises means for receiving the card connected to the radio means and the memory for inputting a particular identification word (PIN, PINUT), associated with the card and is connected to the other input of the comparator. The terminal comprises means for transcoding the input word (PINUT), to match it with the card, to control the activation of the radio means from the subscriber identification word.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.