Title:
HUMAN-MACHINE INTERFACE
Document Type and Number:
WIPO Patent Application WO2001084251
Kind Code:
A3
Abstract:
A human-machine interface (10) includes a panel (12) formed of energy transmissive materialhaving a contact surface (12a) on which one or more contacts may simultaneously be made. An energy source (14) directs energy to the panel. The panel (12) transmits energy received from the energy source to the contact surface. At least one parameter of the energy transmitted by the panel is altered at regions where contacts are made with the contact surface (12a). A detector (24) is coupled to the panel and detects the at least one parameter of the energy generally over the area of the contact surface and outputs values corresponding thereto. A processor (26) is in communication with the detector. The processor (26) processes the output values to determine the locations of the contact regions on the contact surface and at least one other attributed associated with each of the contacts.
Inventors:
TULBERT DAVID J (CA)
Application Number:
PCT/CA2001/000579
Publication Date:
January 03, 2003
Filing Date:
April 30, 2001
Export Citation:
Assignee:
TULBERT DAVID J (CA)
International Classes:
G06F3/042; G06F3/033; G06F3/041; G06F3/048; (IPC1-7): G06K11/08
Domestic Patent References:
| WO1999027485A2 | 1999-06-03 |
Foreign References:
| FR2485804A1 | 1981-12-31 | |||
| US5696863A | 1997-12-09 | |||
| US5483261A | 1996-01-09 |
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