Abstract: A modular, reconfigurable entertainment and data system provides data to at least one user. A cabinet is provided which contains a plurality of module receiving rails therein. A power supply module is positioned on a first one of the rails and provides an operating potential. An entertainment/data module is positioned on a second rail and a control module is positioned on a third one of the module receiving rails and provides an interface between the user and the entertainment/data module.

Abstract: A bias modulation amplitude monitoring system for a rotation sensor having a pair of output signal component detectors to provide magnitudes of the corresponding frequency components in that signal which are used by a component relationship determination arrangement capable of adjusting the output signal to have a selected value in a range of values for a selected rate of rotation thereof, and to correct variations therein, and having a reset arrangement capable of resetting the system if the output signal indicates an unwanted phase modulation amplitude.

Abstract: This disclosure relates to a multi-channel power amplifier utilizing Darlington pairs as the inputs of a cascode amplifier. The Darlington pair inputs may implement an added grounded resistor to the emitter of the pre-driver transistor in each Darlington pair. The added resistance allows for individual adjustment of the dc current in the pre-driver transistor of each Darlington pair, as well as an additional discharge path for the charges stored on the base of the driver transistor in each pair during a decreasing current state.