Apparatus and method for processing a video signal

Details Apparatus and method for processing a video signal Apparatus and method for processing a video signal

1995-12-20

1998-05-05

Burgess, Glenton B.

Television

Image signal processing circuitry specific to television

Transition or edge sharpeners

348629, 348627, 348678, H04N 5208

Patent

active

057482586

ABSTRACT:
Video signal processing apparatus and method which generates an aperture correction signal, or detail signal, which has a narrow width even for video signals that have low high frequency components. The processing apparatus generates a standard detail signal from the video signal, detects the maximum amplitude level of plural samples of the detail signal, and modifies the amplitude level of one of those samples as a function of the ratio of the sample's amplitude level to the detected maximum amplitude level. The apparatus further properly modifies the detail signal even when the positive and negative maximum amplitudes of the video signal are substantially different.

REFERENCES:
patent: 4991012 (1991-02-01), Yoshino
patent: 4994915 (1991-02-01), Takahashi et al.
patent: 5247361 (1993-09-01), Izawa et al.
patent: 5432563 (1995-07-01), Kasahara
patent: 5479215 (1995-12-01), Chmielewshi et al.

Affiliated with

Also associated with

Rating

Apparatus and method for processing a video signal 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 processing a video signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for processing a video signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60005