Television – Special applications – Manufacturing
Patent
1995-06-07
1997-03-18
Burgess, Glenton B.
Television
Special applications
Manufacturing
348907, 455 2, H04N 1700, H04N 1704
Patent
active
056127294
ABSTRACT:
A method and system for producing a signature which characterizes an audio broadcast signal for use in broadcast signal recognition, wherein the signature is based on a comparison of time-displaced frequency band values each representing a respective frequency band of the audio broadcast signal. Each of a first group of the frequency band values is compared with a respective value from the second group representing portions of the audio broadcast signal within the same predetermined frequency band. At least a part of the signal portions represented by the second group were broadcast prior to the signal portions represented by the first group, and a signature is formed based on the comparison of the first and second groups.
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Gonzalez & Wintz, Digital Image Processing, 1987, title page, copyright page and pp. 122-130.
Clifton David L.
Dunn Stephen M.
Ellis Michael D.
Fellinger Michael W.
James David M.
Burgess Glenton B.
Flanagan, III Eugene L.
The Arbitron Company
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