Noise-riding video signal threshold generation scheme for a...

Details Noise-riding video signal threshold generation scheme for a... Noise-riding video signal threshold generation scheme for a...

2007-02-12

2008-09-23

Sotomayor, John B (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Radar ew

C342S197000

Reexamination Certificate

active

07427942

ABSTRACT:
An apparatus for adaptively generating video signal thresholds for a comparator circuit having a plurality of signal channels. The apparatus has input circuitry in electrical signal communication with the plurality of signal channels. The input circuitry uses a selector circuit to select one signal channel of the plurality of signal channels for processing. The apparatus also has a processing resource having an input joined to process the electrical signals on the selected one signal channel to determine if a video signal is present and, if no video signal is present, to process noise signals on the selected one signal channel to generate a new video signal threshold. The processing resource has an output to provide the new video signal threshold to the comparator circuit corresponding to the selected signal channel.

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