Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Patent
1994-02-10
1995-09-19
Groody, James J.
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
348 21, 348409, 375346, H04N 538
Patent
active
054520150
ABSTRACT:
A rejection filter for use at an ATV receiver which is designed to process co-channel interference so as to produce at the filter output of the filter, a residual interference spectrum which is as flat as possible. The filter exploits the fact that only the picture and the sound carriers need to be sufficiently attenuated and cancels NTSC co-channel interference with only a small degradation in performance when AWGN is also present.
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Groody James J.
Marion Michael E.
Murrell Jeffrey S.
Philips Electronics North America Corporation
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