发明名称 UNIVERSAL DISPLAY MEDIA EXPOSURE MEASUREMENT
摘要 Systems, methods and devices for gathering data concerning exposure of predetermined survey participants to billboards are provided. A portable transmitter is arranged to transmit a signal containing survey participant data, and a receiver located proximately to the billboard serves to receive the signal transmitted by the transmitter.
申请公布号 EP1581916(A4) 申请公布日期 2006.10.11
申请号 EP20030814068 申请日期 2003.12.16
申请人 ARBITRON INC. 发明人 ZHANG, JACK, K.;CRYSTAL, JACK, C.;JENSEN, JAMES, M.
分类号 G06Q30/02;G09F27/00 主分类号 G06Q30/02
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