| 摘要 |
A system for collecting data from a plurality of respondents having a central portion with a central processor and a base station and a remote portion with a plurality of wireless response units for respondents to be prompted to enter response data to a visually perceptible display which may be shown live, on a television monitor or may be taped. The display may include multiple choice questions. The central processor accumulates the response data via radio, optical or acoustic communication links with the remote units, each of which has a unique address. The central processor displays the accumulated response data in real time and may overlay the processed response data and originate display shown to the respondents.
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