Abstract: A method for providing network access to a shared access communications medium for a plurality of users includes the steps of conducting predictive admission control by arbitrating user requests for access to the shared medium based on predicted aggregate demands, conducting lookahead scheduling for use in making user channel assignments by forecasting schedule transmission opportunities one or more channels of the shared medium, and balancing load by making channel assignments such that a plurality users are each assigned a respective channel of the shared medium based upon a predicted need. Congestion parameters can predicted for each channel of the shared medium and mapped to a congestion measure using a mathematical function that takes into account packet loss rate, packet delay, packet delay jitter, and available capacity.

Abstract: An input/output device is disclosed that includes an input-sensitive display screen and alphanumeric keys for entering characters. The input-sensitive display screen may be positioned proximate the alphanumeric keys and be capable of displaying graphical information and sensing user selection of the graphical information. The input-sensitive display screen may include a combination display/input region and a non-display input region. The touch sensitive display screen may be detachable from the alphanumeric region and may be operable in a detached configuration. The input/output device may usable with a method of input correction. The method may include displaying, on a secondary display, a first text unit, such as a character or a word, which corresponds with a second text unit shown on a primary display screen of a computing device. The method further involves receiving user selection of the first text unit and replacing the first text unit with a second text unit.