초록 ▼

A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sensor within the capacitance sense interface to generate a measured capacitance value. The measured capacitance value is analyzed to det

A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sensor within the capacitance sense interface to generate a measured capacitance value. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The baseline capacitance value may be updated based at least in part upon a weighted moving average of the measured capacitance value. The measured capacitance value may also be analyzed to determine whether the capacitance sensor was activated during a startup phase and to adjust the baseline capacitance value in response to determining that the capacitance sensor was activated during the startup phase.

대표청구항 ▼

What is claimed is: 1. A machine-readable storage medium that provides instructions that, if executed by a machine, will cause the machine to perform operations comprising:measuring a capacitance value of a capacitance sensor within a capacitance sense interface to generate a measured capacitance va

What is claimed is: 1. A machine-readable storage medium that provides instructions that, if executed by a machine, will cause the machine to perform operations comprising:measuring a capacitance value of a capacitance sensor within a capacitance sense interface to generate a measured capacitance value;analyzing the measured capacitance value to determine a baseline capacitance value for the capacitance sensor;updating the baseline capacitance value in real-time based at least in part upon a weighted moving average of the measured capacitance value;analyzing the measured capacitance value to determine whether the measured capacitance value drops below the baseline capacitance value by a negative threshold value for a predetermined period of time, wherein the predetermined period of time is greater than a single clock cycle; andupdating the baseline capacitance value based on the measured capacitance value measured after the measured capacitance value dropped below the negative threshold value.