Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1986-05-02
1988-04-19
George, Keith E.
Facsimile and static presentation processing
Static presentation processing
Attribute control
455 2, 382 16, H04N 1700, H04H 900
Patent
active
047393980
ABSTRACT:
A method, apparatus and system are provided for recognizing broadcast segments, such as commercials, in real time by continuous pattern recognition without resorting to cues or codes in the broadcast signal. Each broadcast frame is parametized to yield a digital word and a signature is constructed for segments to be recognized by selecting, in accordance with a set of predefined rules, a number of words from among random locations throughout the segment and storing them along with offset information indicating their relative locations. As a broadcast signal is monitored, it is parametized in the same way and the library of signatures is compared against each digital word and words offset therefrom by the stored offset amounts. A data reduction technique minimizes the number of comparisons required while still maintaining a large database.
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Fellinger Michael W.
Hershey John E.
Hyatt George P.
Kubichek Robert F.
Mathews, Jr. John W.
Control Data Corporation
George Keith E.
Ingerman Jeffrey H.
Rogers Laurence S.
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