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Real-time wireless audience response system

  • US 5,226,177 A
  • Filed: 08/03/1992
  • Issued: 07/06/1993
  • Est. Priority Date: 03/27/1990
  • Status: Expired due to Fees
First Claim
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1. A system for real-time collection of data from a plurality of respondents comprising:

  • a) a central portion having a central processor and a radio base station;

    b) a remote portion having a plurality of wireless radio response units each having a display, the response units being in wireless communication with the radio base station for transmitting response data from individual respondents to the central processor wherein the central processor transmits a series of asynchronous message packets, each message packet containing a display update instruction and a message address corresponding to a unit address of the wireless radio response units, reception of the packet by the corresponding radio response unit causing the corresponding unit, in turn, to alter the display of the corresponding unit in accordance with the display update instruction and to transmit the response data from the individual respondent to the central processor, which when received by the central processor causes the central processor to i) check the validity of the data and send an invalidity message to response units which transmit invalid data, ii) accumulate valid individual response data and iii) provide a real-time display of accumulated response data.

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