专利名称：Method and a system for acquiring and
transmitting information about TV programaudiences
发明人：Jean-Louis Croquet,Jean-Pierre Bidon,Jean-Marc Drevon,Pierre-Yves J. Duval
申请号：US07/439399申请日：19900117公开号：US05155762A公开日：19921013
摘要：The invention relates to acquiring information about television programaudiences and transmitting it in real time by means of detection apparatuses (10)associated with telephone sets (12) and connected via the switched telephone network(12) and the TRANSPAC network (28) to a central unit for collecting and processing theinformation transmitted in real time by the apparatuses (10).
申请人：CROQUET & CIE
代理机构：Bell, Seltzer, Park & Gibson
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