Abstract: A supplementary lighting device with a replaceable electroluminescent light element is disclosed. A control system is provided to boost the light intensity of the electroluminescent light element. A light sensor is provided which detects light emitted from the electroluminescent lighting element and inputs this information to the control system. The control system automatically adjusts the intensity of the electroluminescent lighting element according to a pre-set value and the information from the light sensor. This allows for the electroluminescent lighting element to maintain a constant output despite the ageing of the electroluminescent lighting element. The pre-set value for the intensity of the electroluminescent lighting element can be adjusted by a user controlled dimmer. The dimmer varies the amount of light detected by the light sensor in order to increase or decrease the power provided by the control system to the electroluminescent lighting element.

Abstract: The present invention provides a method and apparatus for communicating peripheral input information through a game adapter interface to a personal computer processor. A controller reads switch signals output from one or more switch arrays to detect switch activity. The controller conditions and outputs digital switch activity signals representative of the detected switch activity. A multiplexer multiplexes the digital switch activity signals output from the controller to obtain a corresponding analog switch activity signal. The type of switch activity detected by the controller can include the first switch to be activated among contending slammers and/or the current activation state of an array of selector switches. The controller includes a signal conditioner which asserts digital switch activity signals for a predetermined duration to enable a steady-state analog switch signal to be polled by a personal computer processor.