Patent · US Expired

Machine readable record carrier with hologram

US5900954A · kind A · utility

79Cited by
63References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 7, 1995
Grant dateMay 4, 1999
Priority date
Expiry dateJun 7, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03H2210/20
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A record carrier (e.g., an identification card) of the type containing machine-readable representations of data, wherein the record carrier comprises a substrate, a first pattern of machine-readable indicia applied to one surface of the substrate, and a hologram containing machine-readable data disposed on one surface of the substrate. The information represented by the machine-readable indicia and the machine-readable data are related to one another so as to enable a user to verify the authenticity of the record carrier by comparison of the indicia and the data.

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