07155159 is referenced by 80 patents and cites 12 patents.

An audience surveying technique for identifying individual members of an audience listening to and/or watching a program performed from a programming signal source. A stationary apparatus is operatively arranged at a reception location with a plurality of portable devices designed to be worn by the audience members. The stationary apparatus detects and stores a surveying code transmitted with the program, and it also periodically emits a trigger signal which causes the portable devices to respond by emitting a unique identification signal pre-stored in each one. The stationary apparatus also detects and stores the identification signals. By associating the detected surveying code with the detected identification signals it is possible to quickly, accurately and reliably identify the individual audience members tuned to a particular program.

Title
Audience detection
Application Number
9/519248
Publication Number
7155159 (B1)
Application Date
March 6, 2000
Publication Date
December 26, 2006
Inventor
Thomas Langer
Teaneck
NJ, US
Lee S Weinblatt
Teaneck, 07666
NJ, US
Agent
Cohen Pontani Lieberman & Pavane
Assignee
Lee S Weinblatt
NJ, US
IPC
H04H 9/00
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