Television – Image signal processing circuitry specific to television – Transition or edge sharpeners
Patent
1994-10-26
1995-11-14
Groody, James J.
Television
Image signal processing circuitry specific to television
Transition or edge sharpeners
348629, 348630, H04N 521, H04N 5208
Patent
active
054671450
ABSTRACT:
In video signal processing circuitry detail enhancement is done on each of three color channels in response to the detail information, the enhancement of the detail in each color channel being done in reliance on separated high-spatial-frequency information originally contained in one or more of the channels. The high-spatial-frequency information is separated by differentially combining a fullband video signal with that signal as filtered by a cascade connection of vertical lowpass filter and horizontal lowpass filter.
REFERENCES:
patent: 3732360 (1973-05-01), Breimer et al.
patent: 3743766 (1973-07-01), Loose et al.
patent: 4142211 (1979-02-01), Faroudja
patent: 4677461 (1987-06-01), Mizutani et al.
patent: 4825289 (1989-04-01), Ohta
patent: 5124787 (1992-06-01), Lee et al.
patent: 5218438 (1993-06-01), Kim
Donohoe Charles R.
Groody James J.
Lee Michael H.
Samsung Electronics Co,. Ltd.
Whitt Stephen R.
LandOfFree
Circuitry for enhancing detail in color video signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Circuitry for enhancing detail in color video signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuitry for enhancing detail in color video signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1224376