Mobile communication terminal, IC card, mobile communication system, program, and communication charge notification method
US8489091B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Mar 13, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/82
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a mobile communication terminal, an IC card, a mobile communication system, a program, and a communication charge notification method capable of easily indicating roaming communication charges and preventing a user from being unexpectedly charged for communication. A mobile phone 10 detects that it is located in a country B as a roaming area based on information transmitted from a base station 32, inquires of a charge information related server 24 whether or not a communication charge information stored in a storage section 16 is the latest communication charge information, when the communication charge information is not the latest communication charge information, updates the stored communication charge information based on the communication charge information transmitted from the charge information related server 24, reads the communication charge information of the country B from the storage section 16, and displays the communication charge information on a display section 14.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.