(19)
(11) EP 1 316 054 A1

(12)

(43) Date of publication:
04.06.2003 Bulletin 2003/23

(21) Application number: 01949782.5

(22) Date of filing: 20.07.2001
(51) International Patent Classification (IPC)7G06K 7/08
(86) International application number:
PCT/GB0103/277
(87) International publication number:
WO 0200/9022 (31.01.2002 Gazette 2002/05)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 21.07.2000 GB 0017882
29.11.2000 GB 0028907

(71) Applicant: Sentec Limited
Cambridge CB2 1GE (GB)

(72) Inventors:
  • DAMES, Andrew, Nicholas
    Cambridge CB4 1HU (GB)
  • ENGLAND, Mark
    Cambridge CB4 6DG (GB)
  • HOWE, Andrew Robert Linton
    Stansted,Essex CM24 8AR (GB)

(74) Representative: Clarke, Gavin Richard Houghton 
BTG International Ltd10 Fleet Place,Limeburner Lane
London EC4M 7SB
London EC4M 7SB (GB)

   


(54) MULTIPLE TAG INTERROGATION SYSTEM