08631427 is referenced by 1 patents and cites 12 patents.

A technique is disclosed for identifying members of an audience tuned to a program broadcast by a programming signal source, comprising the steps of storing personal identification signals in a plurality of portable devices to be carried by members of the audience; periodically transmitting said identification signals from the portable devices; providing a stationary detector to detect the identification signals if they exceed a selectable response of said detector; and setting the selectable response of said detector to a level such that the identification signals are detected only if the respective portable devices are located relative to the detector in positions where persons can perceive performance of the broadcast program.

Title
Audience detection
Application Number
12/419949
Publication Number
8631427 (B2)
Application Date
April 7, 2009
Publication Date
January 14, 2014
Inventor
Lee S Weinblatt
Teaneck
NJ, US
Agent
Cozen O Connor
Assignee
Winmore
NJ, US
IPC
H04H 60/33
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