(19)
(11) EP 1 010 156 A1

(12)

(43) Date of publication:
21.06.2000 Bulletin 2000/25

(21) Application number: 97946486.4

(22) Date of filing: 29.10.1997
(51) International Patent Classification (IPC)7G08C 21/00, G09G 3/02
(86) International application number:
PCT/US9720/001
(87) International publication number:
WO 9819/283 (07.05.1998 Gazette 1998/18)
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 29.10.1996 US 2950 P
15.07.1997 US 

(71) Applicants:
  • Hurst, G Samuel
    Knoxville, TN 37932 (US)
  • Ritchie, Rufus H.
    Oak Ridge, TN 37901 (US)
  • Bouldin, Donald W.
    Knoxville, TN 37901 (US)
  • WARMACK, Robert J.
    Knoxville, TN 37923 (US)

(72) Inventors:
  • Hurst, G Samuel
    Knoxville, TN 37932 (US)
  • Ritchie, Rufus H.
    Oak Ridge, TN 37901 (US)
  • Bouldin, Donald W.
    Knoxville, TN 37901 (US)
  • WARMACK, Robert J.
    Knoxville, TN 37923 (US)

(74) Representative: Gilmour, David Cedric Franklyn et al
POTTS, KERR & CO.15 Hamilton Square
Birkenhead,Merseyside CH41 6BR
Birkenhead,Merseyside CH41 6BR (GB)

   


(54) TOUCH SCREEN BASED UPON TOPOLOGICAL MAPPING