Information Handling System Low Latency Touch Rejection Buffer

摘要

A portable information handling system having a touchscreen display selectively rejects touch inputs by removing images from the display associated with the rejected touch inputs after presentation of the images. A touch buffer temporarily stores detected touches, such as by removing touches as the age in the buffer exceeds a threshold. If a trigger event is detected, such as detection of a palm touch or writing stylus, then all or selected of the touch inputs remaining in the buffer are removed as images presented at the display.

主权项

1. A portable information handling system comprising:
a planar housing; a processor disposed in the planar housing and operable to execute instructions to process information; a memory disposed in the planar housing and interfaced with the processor, the memory operable to store the information; a display disposed in the planar housing and interfaced with the processor and memory, the display operable to present the information as visual images and to accept inputs as touches made at a surface of the display; a touch controller interfaced with the display and operable to detect the touches; a touch buffer interfaced with the touch controller and operable to buffer detected touches; and an event detector associated with the touch controller, the event detector operable to detect a predetermined event and, in response to detecting the predetermined event, to selectively delete touch output presented on the display and included in the touch buffer that has a predetermined relationship with the detected predetermined event.