Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Patent
1994-04-20
1996-04-30
Groody, James J.
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
348 21, 375350, 455296, H04N 5455
Patent
active
055129579
ABSTRACT:
An ATV receiver having a decoder which is designed to process a subset limited trellis pre-coded television signal. The decoder processes co-channel interference so as to produce at the filter output of a rejection 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 Corp.
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