Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Patent
1995-06-07
1997-08-26
Kostak, Victor R.
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
348726, 348731, 375232, H04N 521, H04N 5455
Patent
active
056615280
ABSTRACT:
An adaptive equalizer for use in a high definition television (HDTV) receiver, which includes a filtering device having a first filter for FIR (Finite Impulse Response) filtering by receiving a real signal and a real coefficient for output from the filtering device, a second filter for FIR filtering by receiving the real signal and an imaginary coefficient, a third filter for FIR filtering by receiving the real coefficient and an imaginary signal, and a fourth filter for FIR filtering by receiving the imaginary signal and the imaginary coefficient. The adaptive equalizer also includes an adding device having a first adder and a second adder, the first adder subtracting the second filter output from the first filter output in the filtering device, and the second adder adding the outputs of the third and fourth filters. Further, the adaptive equalizer includes an equalization coefficient calculation and downloading device for calculating an equalization coefficient according to the outputs of real and imaginary parts from the first and second adders in the adder to thereby provide the real coefficient and the imaginary coefficient.
REFERENCES:
patent: 4949168 (1990-08-01), Ninomiya et al.
patent: 5099496 (1992-03-01), Pope et al.
patent: 5134464 (1992-07-01), Basile et al.
patent: 5243624 (1993-09-01), Paik et al.
patent: 5311545 (1994-05-01), Critchlow
patent: 5561468 (1996-10-01), Bryan et al.
Eicchi et al ,"Blind Equallization and Carrier Recovery Using a Stop & Go Decision-Directed Algorithm", Sep. 1987, pp. 877-887.
Kostak Victor R.
Murrell Jeffrey J.
Samsung Electronics Co,. Ltd.
LandOfFree
Apparatus and method for controlling operation of a high definat does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for controlling operation of a high definat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling operation of a high definat will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1991557