Audience rating measuring system

Details Audience rating measuring system Audience rating measuring system

1984-12-17

1986-11-11

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

Attribute control

455 2, H04N 1704, H04N 1706, H04H 900

Patent

active

046225838

ABSTRACT:
A system which detects the operation of a video tape recorder to obtain data related to the operation of the video tape recorder. The system is also capable of determining the dubbing condition of the video tape recorder over the recording of an ordinary broadcast. The system further determines the receiving channel of the video tape recorder or the television set by directly comparing video signals.

REFERENCES:
patent: 3803349 (1974-04-01), Watanabe
patent: 4230990 (1980-10-01), Lert, Jr. et al.
patent: 4511917 (1985-04-01), Kohler et al.
patent: 4546382 (1985-10-01), McKenna et al.
patent: 4574304 (1986-03-01), Watanabe et al.

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