Methods and apparatus for automatically identifying programs vie

Details Methods and apparatus for automatically identifying programs vie Methods and apparatus for automatically identifying programs vie

1984-04-26

1987-09-29

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

Attribute control

455 2, H04H 900, H04N 1704, H04N 1706

Patent

active

046972099

ABSTRACT:
A method and apparatus for identifying programs such as television programs received from various sources detects the occurrence of predetermined events such as scene changes in a video signal and extracts a signature from the video signal. The signatures and the times of occurrence of the signatures are stored and subsequently compared with reference signatures to identify the program. The signatures may be compared in pairs to increase resolution, and the time interval between events or signatures may also be used to identify the program, either by themselves or in conjunction with the signatures.

REFERENCES:
patent: 3742463 (1973-06-01), Haselwood et al.
patent: 3919479 (1975-11-01), Moon et al.
patent: 4230990 (1980-10-01), Lert, Jr. et al.
patent: 4450531 (1984-05-01), Kenyon et al.
patent: 4511917 (1985-04-01), Kohler
patent: 4574304 (1986-03-01), Watanabe et al.

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