发明名称 INTERACTIVE PARTICIPATION SYSTEM FOR AUDIENCE
摘要 <p>The invention describes an audience interaction system for enriching the interaction of a presenter with his audience by allowing him to acquire/evaluate their spontaneous feedback in terms of their preferred choices or voiced responses.</p>
申请公布号 WO2000070783(A1) 申请公布日期 2000.11.23
申请号 IN1999000017 申请日期 1999.05.18
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