Patent · US Expired

Methods for evidencing illicit use of a computer system or device

US6549638B2 · kind B2 · utility

57Cited by
30References
24Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 3, 1998
Grant dateApr 15, 2003
Priority date
Expiry dateFeb 24, 2019

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2221/2101
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A computer is provided with software that looks for certain activities that may be illicit (e.g. processing of a graphic file corresponding to a banknote). If such an activity is detected, tracer data detailing the activity is generated and secretly stored. in the computer. If the computer is later searched or seized, the tracer data can be recovered and employed as evidence of the computer's use, e.g. in counterfeiting.

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