PRESSURE INFORMED DECIMATION STRATEGIES FOR INPUT EVENT PROCESSING

摘要

In an embodiment, a touch sensitive device includes touch interface having rows and columns and a signal generator for generating unique orthogonal signals on a plurality of the rows, respectively. A touch processor identifies touch on the touch interface by processing touch signals present on the columns, and outputting a stream of touch events. A decimator receives the stream of touch events including information as to a pressure of the touch event or the contact area of the touch event, selectively identifies one or more of the touch events in the stream, and outputs a modified stream of touch events for use by the touch sensitive device.

主权项

1. A system for reducing the stream of touch events in a touch sensitive device, the system comprising:
a. touch interface comprising rows and columns; b. signal generator adapted to generate at least one of a plurality of signals on each of at least a plurality of the rows, respectively; c. touch processor adapted to identify touch on the touch interface by processing touch signals present on the columns, and outputting a stream of touch events, the stream of touch events including a first plurality of touch events, each of the first plurality of touch events being associated with pressure information; and d. decimator adapted to:
i. receive the stream of touch events,ii. selectively identifying, for inclusion or exclusion, each of the first plurality of touch events using at least the pressure information associated therewith, andiii. output a modified stream of touch events for use by the touch sensitive device, wherein the modified stream of touch events does not include the touch events selectively identified for exclusion.