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Storing baseline information in EEPROM

  • US 20080158174A1
  • Filed: 01/03/2007
  • Published: 07/03/2008
  • Est. Priority Date: 01/03/2007
  • Status: Active Grant
First Claim
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1. A method for establishing no-event baseline sensor output values for sensors in a multi-event sensor panel without corruption by touch or hover events on or about the sensor panel, comprising:

  • during boot-up of a sensor panel subsystem,retrieving pre-stored no-event baseline sensor output values,computing offsets for use in generating normalized sensor output values,performing a scan of the sensor panel to obtain new sensor output values,determining whether an object is touching or hovering on or about the sensor panel, andreplacing the pre-stored no-event baseline sensor output values with the new sensor output values only when it is determined that no object is touching or hovering on or about the sensor panel.

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