Physical object detection and touchscreen interaction

摘要

Disclosed is an input device, such as a multifunction straight edge or a keyboard, with a recognizable contact shape when placed on a touchscreen display surface of a computing device. When the input device is recognized by the host device an object is displayed in a position relative to the input device. The input device includes an interaction module that interfaces with a companion module of the computing device. The interaction module can receive a user input to the input device, and communicate the user input to the companion module of the computing device to modify the display of the object on the touchscreen display surface. The contact shape of the input device can be a defined pattern of contact points, and a location and orientation of the input device on the touchscreen display surface is determinable from the defined pattern of the contact points.