Method and apparatus for detecting and rejecting NTSC...

Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction

Reexamination Certificate

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Details

C348S021000, C348S470000, C348S604000, C348S720000, C348S725000, C348S731000, C375S346000

Reexamination Certificate

active

07554609

ABSTRACT:
A method and apparatus for rejecting an interference signal from an input frequency spectrum. The method includes the steps of receiving the input signal; frequency-shifting the received input signal by a first frequency-shifting amount; and filtering the frequency-shifted input signal to filter out the interference component from the input signal.

REFERENCES:
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Carl Scarpa, “A Recursive NTSC Canceler to Reduce Co-Channel Interference into HDTV Broadcasts”, IEEE-Transactions on Consumer Electronics, vol. 39, No. 3, Aug. 1993, pp. 696-703.

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