Patent · US Expired

System and method for processing long messages in a chip card

US5809241A · kind A · utility

16Cited by

2References

21Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Walter Hanel · Stony Brook, US
Martin Witzel · Schönaich, DE

Key dates

Filing date	Mar 5, 1997
Grant date	Sep 15, 1998
Priority date	—
Expiry date	Mar 5, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG07F7/084
WIPO fieldControl
WIPO sectorInstruments

Abstract

The invention relates to communication with smart cards. Communication of any desired device with a smart card is effected by sending a message to the smart card through the device, receipt of the message by the smart card and processing of the message in accordance with one of the processes in accordance with the invention. A message arriving in a smart card is written and stored by a processor unit in a writable, non-volatile memory, such as an EEPROM, before the message is checked for authorization on the smart card by the processor unit.

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