Apparatus for generating a detection clock for detecting digital

Details Apparatus for generating a detection clock for detecting digital Apparatus for generating a detection clock for detecting digital

1995-06-07

1997-05-13

Kostak, Victor R.

Television

Nonpictorial data packet in television format

Data separation or detection

348468, H04N 7087

Patent

active

056297386

ABSTRACT:
A detection clock generating apparatus generates a detection clock signal for detecting digital data contained in the vertical blanking period of a received composite video signal. A slicer generates a slicing reference signal based on the analog clock run-in signal and slices the received analog clock run-in signal by using the generated slicing reference signal. A synchronizing portion synchronizes the sliced data with an internal clock signal. An edge detecting portion detects the rising edges of pulses of the synchronized sliced data and outputs an edge detection signal. A clock generator generates a detection clock signal on based on the pulses of the edge detection signal.

REFERENCES:
patent: 5506626 (1996-04-01), Yagi et al.

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