专利名称：VIEWING DISTANCE SAFETY SYSTEM发明人：WASSON COLEY, ANN, D.,CONSENTINO,
CHRISTOPHER
申请号：US2004016863申请日：20040528
公开号：WO2005001784A3公开日：20051208
摘要：A viewing distance safety system, utilizing a viewing distance safety devicehaving two ultrasonic sensor modules at a particular angle to each other to achieve awide field of view, and includes an adjustable, user selected, distance threshold settingthat activates a warning when an object or person enters the region within the thresholddistance. The system emits a warning when the threshold distance has been crossed, and,once the distance is cleared, the warning stops and the system reset itself. The systemallows a voice message to be recorded for playback well an alarm is activated by crossinginto the threshold distance.
申请人：WASSON COLEY, ANN, D.,CONSENTINO, CHRISTOPHER
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