Abstract: A system is provided for processing touch data. The system comprises an operating system having a user interface and being configured to process touch data according to a first protocol and a software application running on the operating system. The software application provides an interaction area on the user interface and being configured to process touch data according to a second protocol. A touch controller is configured to send a first touch data corresponding to a touch event to the operating system via a first channel and a second touch data corresponding to the touch event to the software application via a second channel. Where the first touch data corresponds to the interaction area on the user interface, the operating system communicates the first touch data to the software application.

Abstract: A touch sensitive apparatus is disclosed comprising a touch surface configured to receive touch input, a touch sensor configured to determine a surface coordinate of a touch input on the touch surface, an imaging device configured to capture image data of a user input device adapted to engage the touch surface to provide said touch input, a processing unit configured to receive a first surface coordinate of a touch input from the touch sensor; and correlate a touch input at a first surface coordinate with a first image sensor coordinate at which image data of the input device is captured; and generate a touch output signal based on the captured image data of the input device at the first image sensor coordinate. The touch output signal comprises a value for controlling user input device interaction associated with the touch input at the first surface coordinate.

Abstract: A mobile device includes a communications interface and a processor configured to determine whether an accessory device has been attached via the communications interface. The processor is further configured to configure a high bandwidth link to the accessory device via an initial low power link to the accessory device. The processor is further configured to connect to the accessory device via the high bandwidth link when necessary to perform an operation.