Apparatus and method for detecting vertical blanking...

Television – Nonpictorial data packet in television format – Data separation or detection

Reexamination Certificate

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Details

C348S467000, C348S468000, C348S478000

Reexamination Certificate

active

08035741

ABSTRACT:
An apparatus for detecting vertical blanking interval (VBI) signals and an associated detecting method are disclosed. The apparatus can reduce the probability of false alarm by dynamically adjusting the range of a detection window within the VBI interval, thereby enhancing the detection accuracy. The apparatus includes a detection unit and a window-adjusting unit. The detection unit detects whether a television signal contains a clock run-in signal within the detection window to generate a detection signal. The window-adjusting unit dynamically adjusts the range of the detection window according to the detection signal.

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