Methods and apparatus to detect presence of an input object

摘要

A method and apparatus use a plurality of first region values to calculate a second region value, each of the plurality of first region values reflecting sensor element activity in a corresponding region of an input module, the second region value reflecting sensor element activity of a group of the corresponding regions. The method and apparatus determine that the input object is present relative to the group of the corresponding regions if the second region value meets or exceeds a threshold presence value.

主权项

1. A method of detecting a presence of an input object, the method comprising:
using a processor and a plurality of first region values, calculating a second region value such that a signal to noise ratio of the second region value is greater than a lowest signal to noise ratio out of the plurality of first region values, each of the plurality of first region values reflecting sensor element activity in a corresponding region of an input module, the second region value reflecting sensor element activity of a group of the corresponding regions; and determining that the input object is present relative to the group of the corresponding regions if the second region value meets or exceeds a threshold presence value.