Patent ID: 8010363
Filing Date: 2011-08-30
Classification: H04N

Abstract:
1. A commercial detection apparatus which detects commercials, comprising: a processor; and a silent detector module which controls the processor to detect a start time and an end time of a silent segment based on a strength of an audio signal output in content; a determination module which controls the processor to determine a sound segment as a commercial based on the detected silent segment, wherein the determination module determines a sound segment as a commercial if the sound segment is found between consecutive silent segments that are detected by the silent detector module, and wherein a lag time of each start time is within a set time period, the determination module which also determines a sound segment as a commercial if the sound segment is found between consecutive silent segments that are detected by the silent detector and wherein a lag time of each end time is within a set time period; a first extraction module which extracts longer silent segments, each longer silent segment being longer than a set time of the silent segments detected by the silent detector module; and a second extraction module which extracts shorter silent segments, each shorter silent segment being shorter than the set time of the silent segments detected by the silent detector module; and wherein the determination module determines a sound segment as a commercial if the sound segment is found between silent segments, and wherein one of the silent segments extracted by the second extraction module occurs between two of the silent segments extracted by the first extraction module.