KEYPAD APPARATUS
First Claim
1. An apparatus comprising:
- a substrate comprising a capacitive sensor element, said capacitive sensor element having a first electrode forming a first capacitor with an object touching or coming into proximity of the first electrode, wherein the capacitive sensor element is configured to generate a first signal responsive to the object touching or coming into proximity of the capacitive sensor element;
a first capacitor circuit coupled to at least the first electrode; and
a dome configured to complete, responsive to the dome being depressed, an electric circuit comprising at least the first capacitor and the first capacitor circuit to form a second capacitor circuit, wherein the second capacitor circuit is configured to generate a second signal.
2 Assignments
0 Petitions
Accused Products
Abstract
The disclosure relates to implementing different key types on a keypad or keyboard. The implementation can be enabled e.g. by an apparatus including a substrate (28) including a capacitive sensor element (29), the capacitive sensor element having a first electrode (24) forming a first capacitor with an object touching or coming into proximity of the first electrode, wherein the capacitive sensor element is configured to generate a first signal responsive to the object touching or coming into proximity of the capacitive sensor element, a first capacitor circuit coupled to at least the first electrode, and a dome (26) configured to complete, responsive to the dome being depressed, an electric circuit including at least the first capacitor and the first capacitor circuit to form a second capacitor circuit, wherein the second capacitor circuit is configured to generate a second signal.
-
Citations
14 Claims
-
1. An apparatus comprising:
-
a substrate comprising a capacitive sensor element, said capacitive sensor element having a first electrode forming a first capacitor with an object touching or coming into proximity of the first electrode, wherein the capacitive sensor element is configured to generate a first signal responsive to the object touching or coming into proximity of the capacitive sensor element; a first capacitor circuit coupled to at least the first electrode; and a dome configured to complete, responsive to the dome being depressed, an electric circuit comprising at least the first capacitor and the first capacitor circuit to form a second capacitor circuit, wherein the second capacitor circuit is configured to generate a second signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method comprising:
-
receiving a drive signal at a capacitive sensor element; generating a first signal responsive to an object touching or coming into proximity of the capacitive sensor element, wherein the first signal is generated by the capacitive sensor element; and generating a second signal responsive to a dome being depressed, wherein the second signal is generated by a capacitor circuit comprising the capacitive sensor element. - View Dependent Claims (12, 13)
-
-
14. A mobile device comprising:
-
a substrate comprising a capacitive sensor element, said capacitive sensor element having a first electrode forming a first capacitor with an object touching or coming into proximity of the first electrode, wherein the capacitive sensor element is configured to generate a first signal responsive to the object touching or coming into proximity of the capacitive sensor element; a first capacitor circuit coupled to at least the first electrode; and a dome configured to complete, responsive to the dome being depressed, an electric circuit comprising at least the first capacitor and the first capacitor circuit to form a second capacitor circuit, wherein the second capacitor circuit is configured to generate a second signal.
-
Specification