EP 1010156 A4 20020227 - TOUCH SCREEN BASED UPON TOPOLOGICAL MAPPING
Title (en)
TOUCH SCREEN BASED UPON TOPOLOGICAL MAPPING
Title (de)
TASTSCHIRM BASIERT AUF TOPOLOGISCHER ABBILDUNG
Title (fr)
ECRAN TACTILE REALISE SUR LA BASE D'UNE CARTOGRAPHIE TOPOGRAPHIQUE
Publication
Application
Priority
- US 9720001 W 19971029
- US 2950296 P 19961029
- US 5258197 P 19970715
Abstract (en)
[origin: WO9819283A1] A new touch screen based upon the mapping of coordinates from an equipotential (32) space defined by a simple set of screen electrodes to some other more useful coordinates, such as Cartesian. The key idea is that unique coordinate mapping can be achieved with each sensing pair of electronic readings.
IPC 1-7
IPC 8 full level
G06F 3/033 (2006.01); G06F 3/045 (2006.01)
CPC (source: EP)
G06F 3/045 (2013.01)
Citation (search report)
- [X] US 4650926 A 19870317 - NAKAMURA SHOICHIRO [US], et al
- [X] US 4752655 A 19880621 - TAJIRI TETSUO [JP], et al
- [X] PATENT ABSTRACTS OF JAPAN vol. 017, no. 296 (P - 1551) 7 June 1993 (1993-06-07)
- See references of WO 9819283A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9819283 A1 19980507; EP 1010156 A1 20000621; EP 1010156 A4 20020227
DOCDB simple family (application)
US 9720001 W 19971029; EP 97946486 A 19971029