Method and apparatus for network-to-user verification of communication devices based on time
US6377792B1 · kind B1 · utility
29Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/61
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus provides for a subscriber device (106) to signal changing from a first network to a second network including receiving via a transceiver (120) at the subscriber device (106) a time value from another network and generating from a clock (124) at the subscriber device (106) a current time value and then using a controller (126) deriving a delta time value between the time value and the current time value. The controller (126) signals the user when the delta time value between the time value and the current time value changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.