| 摘要 |
In a commercial-break detection device (7) for the detection of commercial-break information (WBI) present in picture information (BI) of a television signal (FS), having detection means (8) arranged to receive the television signal (FS) and adapted to detect black-frame information (SBI) in the picture information (BI) of the television signal (FS), and having memory means (9) for the storage of black-frame time information (SZI) for each one of at least two units of detected black-frame information (SBI), and having analysis means (10) for analyzing the stored black-frame time information (SZI) and for determining commercial-break position information (WP1, WP2) identifying the commercial-break information (WBI) in the picture information (BI), the detection means (8) are now adapted to detect a fade-out (FO), in which fade-out (FO) a luminance signal (Y) of the picture information (BI) decreases during a fade-out time (FT) until the picture information (BI) is formed by the black-frame information (SBI), and the detection means (8) are adapted to determine fade black-frame time information (FI) and edge black-frame time information (KI), the fade black-frame time information (FI) identifying black-frame information (SBI) which is directly preceded by a fade-out (FO), and the edge black-frame time information (KI) identifying black-frame information (SBI) which is not directly preceded by a fade-out (FO), and the analysis means (10) are adapted to separately analyze the stored fade black-frame time information (FI) and the stored edge black-frame time information (KI), in order to determine the commercial-break position information (WP1, WP2).
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