Abstract: A plurality of substantially simultaneous inputs are associated with one or more applications, wherein it is determined if the plurality of inputs includes unacceptable inputs and wherein unacceptable inputs are ignored.

Abstract: A system includes a first token associated with a display device and configured to be selectively repositioned by a user with respect to the display device, the first token having at least one interactive module configured to interact with a second token. The system may include a plurality of modules, each of which is configured to be selectively attached to a token, each of the modules providing a different capability to the token when attached thereto. A display system includes a display device; a sensor for detecting tokens used with the display device; a controller communicatively coupled to the sensor and the display device; and a first token associated with the display device and including an optical sensor for receiving data from the display device. The controller is configured to drive the display device to simultaneously display an image and transfer data to the first token.

Abstract: A system including a display device including a display surface. The system can include a camera to capture one or more images of the display surface. A computing device can be connected to the camera to control the camera and to recognize an object placed on the display surface.

Abstract: A system including a projection screen having a surface, a projector configured to project images onto the surface of the projection screen and a camera configured to capture one or more images of the surface of the projection screen. An object can be configured to rest upon the surface, wherein the object and at least one of the projector and the camera are configured to cooperate with one another to communicate audio data through the surface of the projection screen while the object is resting upon the surface.