Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2000073984) PROJECTIVE CAPACITIVE TOUCHSCREEN
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2000/073984 International Application No.: PCT/US2000/015334
Publication Date: 07.12.2000 International Filing Date: 01.06.2000
Chapter 2 Demand Filed: 02.01.2001
IPC:
G06F 3/033 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
033
Pointing devices displaced or positioned by the user; Accessories therefor
Applicants:
ELO TOUCHSYSTEMS INCORPORATED [US/US]; 6500 Kaiser Drive Fremont, CA 94555, US
Inventors:
KENT, Joel; US
RAVID, Arie; US
Agent:
ARONOFF, Michael, J.; Tyco Electronics Corporation Intellectual Property Law Dept. 300 Constitution Drive, MS 106/1B Menlo Park, CA 94025-1164, US
Priority Data:
09/324,34602.06.1999US
Title (EN) PROJECTIVE CAPACITIVE TOUCHSCREEN
(FR) ECRAN TACTILE CAPACITIF PROJECTIF
Abstract:
(EN) A capacitive touchscreen using two sets of electrodes fabricated in a single plane. Individual electrodes of each set of electrodes are formed of a continuous length of conductive material such as fine wire or conductive coatings. The overall electrode pattern is such that there is no overlap thus eliminating the need for insulating layers and/or coatings. Preferably the pattern comprises a plurality of approximately triangular electrodes, formed such that the base of one triangularly shaped electrode is adjacent to the apex of the next. A touchscreen sensor employing the disclosed sensing electrodes can use any of a variety of readout systems such as a frequency domain approach, a time domain approach or by detecting frequency shifts of LC oscillators. Preferably, prior to calculating position, a subset of electrodes localised around the touch position is determined. Once a set of localised electrodes has been determined the touch coordinates are calculated.
(FR) L'invention concerne un écran capacitif faisant appel à deux ensembles d'électrodes produits dans un seul plan, les électrodes individuelles de chaque ensemble d'électrodes étant formées d'une longueur continue de matériaux conducteurs, tels que des électrodes fines ou des revêtements conducteurs. Le modèle d'électrodes global est tel qu'il n'y a pas de superposition, l'isolation des couches et/ou leur revêtement s'avère(nt) donc inutile(s). Le modèle comprend, de préférence, une pluralité d'électrodes plus ou moins triangulaires constituées de manière que la base d'une électrode triangulaire soit adjacente au sommet de la base suivante. Un capteur d'écran tactile à électrodes de détection peut utiliser une grande variété de systèmes d'affichage faisant appel au domaine de fréquence, au domaine temporel ou à la détection de variations de fréquence d'oscillateurs LC. Avant le calcul de la position, on détermine de préférence un sous-ensemble d'électrodes entourant la position de l'écran. Une fois cet ensemble localisé, on calcule les coordonnées tactiles.
front page image
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)