Patent · US Expired

Chip card and program for chip cards

US6105873A · kind A · utility

48Cited by
9References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 2, 1997
Grant dateAug 22, 2000
Priority date
Expiry dateDec 2, 2017

Classification

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

Abstract

A chip card comprises a microprocessor able to execute a program recorded in memory and one or more removable portions, which may be, for example, pre-cut portions. The execution of the program can be modified by tearing off or cutting one or more of these portions. The program may include an instruction to test a register whose contents depend on the presence of one of the removable portions. Many applications, such as an electronic visiting card, are possible with the disclosed chip card.

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