发明名称 AUDIENCE MONITOR
摘要 Apparatus for monitoring the population in a room containing a device (112), the apparatus comprises a detector (300) for detecting the entry and exit of people from the room, and a monitor (410) for monitoring the status of the device (112). The monitor includes a prompting circuit (412) responsive to the detector (300) for prompting people in the room to input additional information to the monitor (410) when the detector detects entry or exit from the room.
申请公布号 AU7558687(A) 申请公布日期 1988.03.03
申请号 AU19870075586 申请日期 1987.07.13
申请人 CONTROL DATA CORP., 发明人 OSCAR MENDEL LURIE
分类号 H04H60/33;H04H60/45;H04N17/00 主分类号 H04H60/33
代理机构 代理人
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