Title:
TELECOMMUNICATION SYSTEM
Document Type and Number:
Japanese Patent JP2006304344
Kind Code:
A
Abstract:
To provide a more efficient and remotely configurable SIM card.
In a telecommunications system such as a global mobile telephone network in which each subscriber unit includes a subscriber identity module (SIM card), each SIM card has fixed memory locations (22), to which data can be addressed over the air. The locations (22) can be accessed from the subscriber unit on the entry of short simple codes, each associated with one of the locations though they can not be overwritten from the subscriber unit. Further fixed memory locations (24) can be read over the air only when the subscriber enters a personal identification number. Locking control files are used, respectively to control reading/writing access to the position (22, 24).
More Like This:
Inventors:
MICHAELS WAYNE DAVID
TIMSON ANTHONY RICHARD
DERVAN ADEN WILLIAM
TIMSON ANTHONY RICHARD
DERVAN ADEN WILLIAM
Application Number:
JP2006163429A
Publication Date:
November 02, 2006
Filing Date:
June 13, 2006
Export Citation:
Assignee:
BRITISH TECH GROUP INT
International Classes:
H04W84/08; G06Q20/34; G06Q20/36; G07F7/08; G07F7/10; H04M1/00; H04M3/493; H04M11/00; H04W4/06; H04W4/14; H04W8/24
Domestic Patent References:
| JPH05130255A | 1993-05-25 | |||
| JPH04503747A | 1992-07-02 |
Foreign References:
| WO1993007697A1 | 1993-04-15 |
Attorney, Agent or Firm:
Hidehiko Okada
Tetsuo Fukuda
Tetsuo Fukuda