Patent ID: 6930673

Claim:
A collaborative input system comprising: a host computer, a display associated with the host computer, the host computer being constructed and arranged to execute an application to provide an image on the display, a plurality of electromagnetic digitizers provided separate from the host computer, each digitizer having an input surface defining a space that is mapped to coincide with the display via computer readable medium, at the host computer, having stored thereon sequences of instructions for mapping the space to the display, each digitizer being constructed and arranged to have no display features, each digitizer having a pen structure operatively associated with the input surface such that proximity of the pen structure with respect to the input surface, as a result of a user's input, is detected by the digitizer, a wireless communication link between a single transceiver associated with the host computer and the plurality of the digitizers such that a user's input can be transmitted from one of the digitizers, be received by the host computer, and be represented graphically on the display together with the image in real time, thereby permitting a user associated with the one digitizer to personally provide input to the host computer displaying the image, and computer readable medium, at the host computer, having stored thereon sequences of instructions for prioritizing and managing data from each of the plurality of digitizers.