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1. (WO1998052184) ACOUSTIC TOUCH POSITION SENSOR USING A LOW ACOUSTIC LOSS TRANSPARENT SUBSTRATE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052184 International Application No.: PCT/US1998/008173
Publication Date: 19.11.1998 International Filing Date: 23.04.1998
Chapter 2 Demand Filed: 25.11.1998
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, INC. [US/US]; 41752 Christy Street Fremont, CA 94538, US
Inventors:
KENT, Joel; US
TSUMURA, Masahiro; JP
Agent:
MILDE, Karl, F., Jr.; Milde, Hoffberg & Macklin, LLP Suite 460 10 Bank Street White Plains, NY 10606, US
Priority Data:
08/904,67001.08.1997US
08/954,83821.10.1997US
9/12385814.05.1997JP
Title (EN) ACOUSTIC TOUCH POSITION SENSOR USING A LOW ACOUSTIC LOSS TRANSPARENT SUBSTRATE
(FR) CAPTEUR ACOUSTIQUE DE POSITION D'EFFLEUREMENT UTILISANT UN SUBSTRAT TRANSPARENT A FAIBLE PERTE ACOUSTIQUE
Abstract:
(EN) An acoustic touch panel (100) utilizes acoustic waves within a sensor substrate to determine the position of touch. The substrate (1) is made of a glass having an attenuation coefficient of less than or equal to about 0.6 dB/cm as determined at the substrate surface for 5.53 MHz Rayleigh waves as measured by the slope of a plot of amplitude versus distance for a signal through a pair of facing 0.5 inch wide wedge transducers mounted on the glass under test having sufficient thickness to support Rayleigh wave propagation.
(FR) L'invention porte sur un panneau tactile (100) de type acoustique mettant en oeuvre des ondes acoustiques dans un substrat de capteur de façon à déterminer la position d'effleurement. Ce substrat (1) est fait dans un verre trempé dont le coefficient d'atténuation est inférieur ou égal à environ 0,6 dB/cm mesuré au niveau de la surface du substrat pour des ondes Rayleigh de 5,53 MHz selon une pente de tracé amplitude/distance pour un signal traversant une paire de transducteurs opposés à coin large de 0,5 pouces, montés sur le verre de test d'une épaisseur permettant la propagation des ondes Rayleigh.
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Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, KE, KG, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXPA/a/1999/010452IL132643EP1019897EP2287714CN1269043CA2288066
AU1998071510