US Patent 9405379 Classification of user input

Techniques for identifying inadvertent user input, such as inadvertent touch contact or air input, are described. The techniques may include classifying a touch contact or air input as intentional or unintentional based on contextual information related to the touch contact, the air input, or a device via which the touch contact or air input was received. In some examples, the contextual information may indicate how a user is interacting with the device, such as a position of the user's hand, a location of the touch contact on a touch surface, a path of user's touch trajectory, an application with which the user may be interacting, keyboard input history of the user, and so on. When the user input is classified as unintentional, the techniques may refrain from performing an action that is generally triggered by the user input.