Merit Industries, Inc.

James A Kavanagh

John W Houriet, Jr

A detection system for detecting darts which have missed the target in an electronically secored dart game is comprised of first audio sensor circuitry located proximate to the dart board target for detecting sounds created when a dart strikes either the dart board target or the housing in the vicinity of the target and generating an electrical signal upon the detection of such sounds. A second audio sensor circuit located remote from the target is employed for detecting sounds that simulate the sounds created when a dart strikes either the target or the housing in the vicinity of the target and for generating an electrical signal upon the detection of such simulated sounds. The outputs from the audio sensor circuitry are compared and an output comparison signal is generated only when a signal is received from the first audio sensor circuit in the absence of a signal from the second audio sensor circuit. The output comparison signal is compared with a score signal output of an electronic scoring circuit and a second output comparison signal indicative of a missed dart is generated only when a first comparison output signal is received in the absence of a score signal.

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Warminster, PA, United States of America

James A Kavanagh