TOUCH-SENSITIVE INTERFACE DEVICE AND METHOD
First Claim
1. A touch-sensitive interface device (100), which includes:
- a touch-sensitive keypad including at least one means for generating a voltage as the effect of a mechanical deformation, anda signal processing electronic interface adapted to detect pressing and/or releasing of a voltage generator means and to go to standby after the pressing and/or the releasing of each voltage generator means.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch-sensitive interface device includes:—a touch-sensitive keypad including elements for generating a voltage as the effect of a mechanical deformation, and—a signal processing electronic interface adapted to detect pressing and/or releasing of a voltage generator elements and to go to standby after the pressing and/or the releasing of each voltage generator elements. The voltage generator elements preferably includes a piezoelectric element. In embodiments, the electronic interface includes at least one voltage comparator device, the generation of a parameterable threshold voltage to which the voltage comparator device compares the voltage at the terminals of a voltage generator element, and a card including a central processor unit and its power supply unit. The parameterable threshold voltage can be increased or decreased to detect positive and negative peaks of at least one voltage generator elements respectively caused by pressing or releasing at least one voltage generator elements.
29 Citations
18 Claims
-
1. A touch-sensitive interface device (100), which includes:
-
a touch-sensitive keypad including at least one means for generating a voltage as the effect of a mechanical deformation, and a signal processing electronic interface adapted to detect pressing and/or releasing of a voltage generator means and to go to standby after the pressing and/or the releasing of each voltage generator means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18)
-
-
13. A touch-sensitive interface method, which includes:
-
a step of detecting pressing and/or releasing of a voltage generator means of a keypad and activating of an electronic interface, and a step of returning said electronic interface to standby.
-
Specification