Apparatus and method for processing signals
AssigneeSony Corporation
InventorsMototsugu Abe, Masayuki Nishiguchi
Life of this patent
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Abstract
A tuner 1 receives a TV-broadcast signal from an antenna 6. The TV-broadcast signal is supplied to a demodulator 2. The demodulator 2 demodulates the audio signal and video signal, both contained in the TV-broadcast signal. A CM-detecting section 4 is provided. In the section 4, characteristic patterns are generated at intervals of 15 seconds, 30 seconds and 60 seconds, from the audio and video signals. Then, CM candidates are detected in accordance with the characteristic patterns. Characteristic data representing the characteristics of a CM is extracted from each CM candidate or the audio and video signals preceding and following the CM candidate. The section 4 detects a CM from the characteristic data thus extracted.
Claims53
A signal-processing apparatus comprising:
- a candidate-detecting unit which receives an input signal part from an input signal in time-divided fashion, and identifies characteristic patterns in a portion of the input signal part indicating the probability that the input signal part is a candidate part;
- a characteristic-extracting unit which extracts characteristic patterns from the input signal part which alone indicate the probability that the input signal part is the candidate part;
- and
- a detecting unit which detects whether the input signal part is the candidate part based on the characteristic data extracted by the characteristic-extracting unit;
- and
- a determining unit which determines whether the candidate part resulting from the extraction and detection performed by the characteristic-extracting unit and the detecting unit is a commercial message,
- wherein,
- the determining unit determines whether the candidate part is a commercial message by first applying a minimum-length priority rule and then applying an adjacent-candidate priority rule based on the result of the minimum-length priority rule and then applying a score priority rule based on the result of die adjacent-candidate priority rule.
A signal-processing apparatus including a memory and processor which performs a method including the steps of:
- receiving an a input signal part and other signal parts from an input signal in time-divided fashion;
- and
- detecting from the input signal a candidate part from the input signal part in accordance with characteristic patterns of the input signal part;
- extracting characteristic patterns from the input signal part which alone indicate the probability that the input signal part is the candidate part;
- and
- detecting the candidate part in accordance with the extracted characteristic data;
- determining whether the candidate part is a commercial message by first applying a minimum-length priority rule, and then applying an adjacent-candidate priority rule based on the result of the minimum-length priority rule and then applying a score priority rule based on the result of the adjacent-candidate priority rule.
Dependencies are inferred from the claim text.