Patent ID: 8125456
Filing Date: 2012-02-28
Classification: G06F

Abstract:
1. A touch subsystem for detecting events on or about a sensor panel and generating an image of the events, comprising: driver logic configured for generating one or more input stimuli; channel scan logic configured for controlling the driver logic to scan one or more rows of sensors in the sensor panel by driving at least one row with the one or more input stimuli; auto-scan logic configured to disable touch detection after a first predetermined amount of time elapses without any events being detected on the sensor panel, enable touch detection and scan the one or more rows in the sensor panel upon expiration of a second predetermined amount of time, and determine if any events are detected on the sensor panel; and one or more analog channels, each analog channel couplable to a column of sensors in the sensor panel, each analog channel configured for receiving a signal representative of an event occurring at one of the sensors in the column of sensors, and generating a value representative of the event.