Active system and method for remotely identifying RF broadcast s

Details Active system and method for remotely identifying RF broadcast s Active system and method for remotely identifying RF broadcast s

1996-11-20

1998-10-06

Faile, Andrew I.

Telecommunications

Audience survey or program distribution use accounting

348 1, H04B 1700

Patent

active

058191550

ABSTRACT:
A survey electronics package (32) of a survey system (10) includes a transmitter (36) and a receiver (38). The transmitter (36) transmits a survey signal which a radio (12) residing in a detection zone (14) receives and demodulates to generate an audio echo signal. The audio echo signal is magnetically radiated from a speaker (26) of the radio (12). The receiver (38) magnetically senses this magnetically radiated audio echo signal. A bandpass filter (48) in the receiver (38) and a correlation process (86) insure that only a valid audio echo signal is recorded. When the detection of a valid audio echo signal corresponds to a radio (12) tuned to a particular radio station, a record is made of the detection.

REFERENCES:
patent: 2552585 (1951-05-01), Rahmel
patent: 2896070 (1959-07-01), Fremont et al.
patent: 3126513 (1964-03-01), Kamen
patent: 3434150 (1969-03-01), Wernlund
patent: 3456192 (1969-07-01), Mixsell et al.
patent: 3800223 (1974-03-01), Mead
patent: 4718106 (1988-01-01), Weinblatt
patent: 5410724 (1995-04-01), Worthy
patent: 5457807 (1995-10-01), Weinblatt
patent: 5561835 (1996-10-01), Worthy
patent: 5581800 (1996-12-01), Fardeau et al.
patent: 5630203 (1997-05-01), Weinblatt

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