Receiver based methods and devices for combating co-channel NTSC

Details Receiver based methods and devices for combating co-channel NTSC Receiver based methods and devices for combating co-channel NTSC

1996-07-18

1998-07-07

Lee, Michael H.

Television

Receiver circuitry

348 21, 348607, 375233, 375350, 455296, H04N 521

Patent

active

057776920

ABSTRACT:
A device and method for removing co-channel conventional television signal interference from a digital signal by using an-adaptive filter which tunes to the periodic components of the conventional television signal. The output of the adaptive filter is then subtracted from the received signal to produce an error signal. This error signal is then used to recursively update the taps of the adaptive filter. The invention also relates to the use of the adaptive filter in conjunction with a DFE.

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