EP 1034516 A1 20000913 - MICROWAVE METHOD FOR CHECKING THE AUTHENTICITY
Title (en)
MICROWAVE METHOD FOR CHECKING THE AUTHENTICITY
Title (de)
MIKROWELLENVERFAHREN ZUM PRÜFEN DER ECHTHEIT
Title (fr)
PROCEDE DE VERIFICATION DE L'AUTHENTICITE PAR MICRO-ONDES
Publication
Application
Priority
- EP 98964432 A 19981119
- EP 9807547 W 19981119
- EP 97203672 A 19971126
Abstract (en)
[origin: WO9927502A1] A method of checking the authenticity of a security document, said security document comprising an electrically non-conducting base material such as paper or plastic, particles functioning as an electrical dipole being incorporated in said base material and functioning as a security element. The method comprises the following steps: (a) manually performing a relative movement between a document (10) to be checked and a microwave detector; (b) emitting microwaves to said document (10) to be checked and receiving microwaves from said document to be checked in order to check whether said particles are present; (c) preventing human fingers or peoples' hands from interfering with the microwaves received from said document to be checked in order to avoid that human fingers are confused with said particles.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G07D 7/10 (2013.01)
Citation (search report)
See references of WO 9927502A1
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
WO 9927502 A1 19990603; AU 1963599 A 19990615; EP 1034516 A1 20000913
DOCDB simple family (application)
EP 9807547 W 19981119; AU 1963599 A 19981119; EP 98964432 A 19981119