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(A2) |
申请公布日期 |
2005.10.05 |
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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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