Patent · US Expired

Smart card system having asynchronous communication with the smart card operating either as master or slave

US7127529B2 · kind B2 · utility

3Cited by
16References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 30, 2000
Grant dateOct 24, 2006
Priority date
Expiry dateApr 15, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06Q20/3552
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A smart card comprises a microcontroller, a memory unit, a storage unit, and a communications unit. The smart card may be connected to a terminal, which is in turn may be connected to a host computer and/or a network. The smart card is configured to initiate communications with the terminal, which enables the smart card to control the terminal, host computer, or network and to access the resources connected to the terminal, host computer, or network. A communications protocol defines the commands that the smart card can send and allows the smart card to communicate using asynchronous or logical asynchronous communication.

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