Patent · US Expired

Mobile device, chip card and method of communication

US6859650B1 · kind B1 · utility

152Cited by
28References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 30, 1998
Grant dateFeb 22, 2005
Priority date—
Expiry dateJan 30, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M2250/14
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A mobile apparatus includes a removable SIM chip card having data-processing means intended among other things for storing identification data of a subscriber in a GSM mobile radio network. The mobile apparatus has additionally at least one wireless interface integrated in the housing. The interface may be infrared or inductive. By means of this interface, the SIM card can communicate directly, without making use of the mobile radio network, with an outside device in both directions. The chip card contains additionally a communication controller to encrypt data and transmit them via the interface. The contactless interface may preferably be fed independently of the mobile apparatus.

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