Automatic commercial message recognition and monitoring device
First Claim
1. An automatic commercial message (CM) recognition device for checking a CM program in a TV broadcasting signal that has an audio signal having a fixed timing with respect to a video signal thereof, comprising:
- a first means responsive to the TV broadcasting signal for detecting a silence state of the audio signal in the TV broadcasting signal at a start time or at an end time of the CM program, said first means including an audio data preparing portion responsive to the audio signal and a vertical synchronizing signal of the video signal for producing audio data of the TV signal, and a silence data preparing portion responsive to said audio data and the vertical synchronizing signal for producing silence data from the audio signal;
second means for detecting a significant change of video signal of the TV broadcasting signal;
third means responsive to outputs of said first means and said second means to derive only the CM program;
fourth means for producing audio data of the TV broadcasting signal by sampling the audio signal with a timing of the vertical synchronizing signal; and
fifth means for comparing the CM program derived by said third means with preliminary stored CM data to recognize the CM program.
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Accused Products
Abstract
An automatic commercial message (CM) recognition device has an audio data preparing portion (6) for producing audio data from an audio signal contained in a TV program received, a silence data preparing portion (7) for producing silence data from the audio signal contained in the TV program received, an image change detector portion (8) for detecting a change of image on an image screen from a video signal of the TV program received, a control portion (12) for determining a start or an end of a CM when an output of the silence data detecting portion indicates a silence state and the image change detector portion detects a change of an image, and a CM data referencing portion (14) for deriving an audio data from the start or end of the CM and comparing it with a preliminarily stored audio data of the CM.
92 Citations
6 Claims
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1. An automatic commercial message (CM) recognition device for checking a CM program in a TV broadcasting signal that has an audio signal having a fixed timing with respect to a video signal thereof, comprising:
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a first means responsive to the TV broadcasting signal for detecting a silence state of the audio signal in the TV broadcasting signal at a start time or at an end time of the CM program, said first means including an audio data preparing portion responsive to the audio signal and a vertical synchronizing signal of the video signal for producing audio data of the TV signal, and a silence data preparing portion responsive to said audio data and the vertical synchronizing signal for producing silence data from the audio signal; second means for detecting a significant change of video signal of the TV broadcasting signal; third means responsive to outputs of said first means and said second means to derive only the CM program; fourth means for producing audio data of the TV broadcasting signal by sampling the audio signal with a timing of the vertical synchronizing signal; and fifth means for comparing the CM program derived by said third means with preliminary stored CM data to recognize the CM program. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification