Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Patent
1992-12-24
1994-03-29
Groody, James J.
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
H04N 5213, H04N 5210
Patent
active
052990044
ABSTRACT:
A ghost signal removal apparatus for a broadcasting reception system, includes an analog/digital converter for converting a video signal of a received broadcasting signal into a digital signal. A first filtering circuit is adaptive to a reference signal contained in the digital signal from the analog/digital converter, to remove from the digital signal a ghost signal component appearing at the front of a main video signal. A second filtering circuit is adaptive to a reference signal contained in an output signal from the first filtering circuit, to remove from a fed-back final video signal a ghost signal component appearing at the rear of the main video signal. A subtractor subtracts an output signal from the second filtering circuit from the output signal from the first filtering circuit to obtain the final video signal in which the ghost signal has been removed. A digital/analog converter converts an output signal from the subtractor into an analog signal.
REFERENCES:
patent: 4947252 (1990-08-01), Kobayashi et al.
patent: 5138453 (1992-08-01), Kobayashi et al.
patent: 5184221 (1993-02-01), Nishi et al.
Joo Kwang C.
Song Woo J.
Goldstar Co. Ltd.
Groody James J.
Lee Michael H.
LandOfFree
Ghost signal removal apparatus for broadcasting reception system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ghost signal removal apparatus for broadcasting reception system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ghost signal removal apparatus for broadcasting reception system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-796253