US 8,791,910 B2
Capacitive keyboard with position-dependent reduced keying ambiguityGeneral
US 8,791,910 B2
Capacitive keyboard with position-dependent reduced keying ambiguity
Tech Center:
2600 Communications
Examiner:
Waseem Moorad
Art Unit:
2624 Selective Visual Display Systems
Agent:
Inventors:
Harald Philipp
Assignee:
Priority:
05/25/06
Filed:
03/08/11
Granted:
07/29/14
Expiration:
11/28/26
Abstract
In one embodiment, a method includes receiving two or more output signals responsive to two or more capacitive couplings. Each of the capacitive couplings has occurred between a pointing object and one of two or more sensing areas within a sensing region, and each of the sensing areas has a position within the sensing region. The method includes, if two or more of the output signals each have an output-signal level that exceeds a predefined activation level, then selecting a particular one of the sensing areas with output-signal levels exceeding the predefined activation level as an intended one of the sensing areas based on a predefined ranking scheme that takes into account the positions of the sensing areas within the sensing region.
Cooperative Patent Classification (CPC)
G06G06F3/04886G06FH03K17/9622H03K