Patent · US Expired

Method and algorithm for accessing a smart card stored in a telecommunications card from a host device to which said telecommunications is connected

US7137565B2 · kind B2 · utility

2Cited by

8References

9Claims

0Family size

Assignee

Option NV · BE

Inventors

Geert Van Overbeke · Leuven, BE
Jan Heylen · Geel, BE
Jan Vercruysse · Blanden, BE

Key dates

Filing date	Oct 12, 2004
Grant date	Nov 21, 2006
Priority date	—
Expiry date	Oct 12, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q21/28
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method for accessing a smart card (SIM) from a host device (TE) via a telecommunications card (MT), the telecommunications card (MT) comprising a command interpreter (TA) for interpreting host device commands and a modem (ME) with associated smart card reader, the modem (ME) being only accessible to the host device via the command interpreter (TA), the method comprising the steps of: (a) providing an access command (AT+CSIM) on the host device, instructing the command interpreter (TA) to pass on any attached command originating from the host device (TE) to the smart card reader; (b) attaching an application command (APDU) to the access command (AT+CSIM) and forwarding both to the command interpreter (TA); (c) performing the application command (APDU) on the smart card reader; (d) storing a response given by the smart card (SIM) in a first buffer which is accessible towards the host device (TE).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.