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Audience rating survey apparatus and audience rating survey system using the same

  • US 10,448,097 B2
  • Filed: 07/29/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 05/13/2016
  • Status: Active Grant
First Claim
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1. A display device for an audience rating survey system, the display device comprising:

  • a power supply unit connected to a surveyed broadcast device so as to receive power only when the surveyed broadcast device is ON state;

    a receiving unit configured to receive a respective identification signal from each of a plurality of different viewing entities;

    a light emitting unit comprising a plurality of light emitting elements, each of the light emitting elements emitting light in response to the receiving unit receiving one of the identification signals assigned to one of the viewing entities;

    a storage unit that stores viewing data, for each of the different viewing entities, indicative of when the light emitting element associated with the respective viewing entity is emitting light;

    a control unit that generates the viewing data and stores the viewing data in the storage unit; and

    a transmitting unit that transmits the viewing data to an external device.

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