Hanging dot reduction arrangement

Details Hanging dot reduction arrangement Hanging dot reduction arrangement

1987-09-10

1989-02-28

Shepperd, John W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 36, H04N 978

Patent

active

048090603

ABSTRACT:
In a television apparatus, a line comb filtered first chrominance signal that is delayed by one horizontal interval and the line comb filtered first chrominance signal that is undelayed are formed from a baseband video input signal. A line comb filtered first luminance signal is also formed from the input signal. A signal that is representative of a difference between the chrominance signals is correlated with a high frequency signal component of the first luminance signal to form a control signal that controls a switching arrangement. The switching arrangement provides combed luminance and combed chrominance signals that are to be displayed in a video display. When the control signal is indicative of the corresponding signals being correlative, the switching arrangement provides, instead, corresponding uncombed signals so as to reduce the visibility of hanging dot condition.

REFERENCES:
patent: 4178609 (1979-12-01), Beutel
patent: 4240105 (1980-12-01), Faroudja
patent: 4241363 (1980-12-01), Maeyama et al.
patent: 4598309 (1986-07-01), Casey
patent: 4616254 (1986-10-01), Harwood et al.
patent: 4636842 (1987-01-01), Hartmeier
patent: 4641186 (1987-02-01), Pritchard
patent: 4734758 (1988-03-01), Honjo

Affiliated with

Also associated with

Rating

Hanging dot reduction arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hanging dot reduction arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hanging dot reduction arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1372300