Audience response system with batteryless response units
作者： Emil J. Ureel , Kyle A. Israels
DOI:
关键词:
摘要: A wireless response system and method of receiving user input selections at a base station includes distributing plurality units to users. The wirelessly communicate with the in order retrieve responses received by units. Each has device that is configured selections, controller responsive process inputs power supply having super capacitor. capacitor charged wireless-charging circuit current supplied from controller. Current controlled.
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