US 8,432,173 B2
Capacitive position sensorGeneral
US 8,432,173 B2
Capacitive position sensor
Tech Center:
2800 Semiconductors/Memory, Circuits/Measuring and Testing, Optics/Photocopying, Printing/Measuring and Testing
Examiner:
Vincent Q Nguyen
Art Unit:
2858 Printing/Measuring and Testing
Agent:
Inventors:
Harald Philipp
Assignee:
Priority:
10/20/06
Filed:
05/27/11
Granted:
04/30/13
Expiration:
06/02/25
Abstract
In one embodiment, a method includes receiving one or more first signals indicating one or more first capacitive couplings of an object with a sensing element that comprises a sensing path that comprises a length. The first capacitive couplings correspond to the object coming into proximity with the sensing element at a first position along the sensing path of the sensing element. The method includes determining based on one or more of the first signals the first position of the object along the sensing path and setting a parameter to an initial value based on the first position of the object along the sensing path. The initial value includes a particular parameter value and is associated with a range of parameter values. The range of parameter values is associated with the length of the sensing path.
Cooperative Patent Classification (CPC)
G06G06F3/04847G06FH03K17/962H03K