STORING BASELINE INFORMATION IN EEPROM

摘要

Pre-stored no-touch or no-hover (no-event) sensor output values can initially be used when a sensor panel subsystem is first booted up to establish an initial baseline of sensor output values unaffected by fingers or other objects touching or hovering over the sensor panel during boot-up. This initial baseline can then be normalized so that each sensor generates the same output value for a given amount of touch or hover, providing a uniform response across the sensor panel and enabling subsequent touch or hover events to be more easily detected. After the initial normalization process is complete, the pre-stored baseline can be discarded in favor of a newly captured no-event baseline that may be more accurate than the pre-stored baseline due to temperature or other variations.

主权项

1. A method of operating an event sensor panel, comprising:
triggering a start of event sensing functionality at the event sensor panel; determining one or more objects touching or hovering over the event sensor panel when the start of event sensing functionality is triggered; and initiating an operation based on the determined one or more touching or hovering objects.