Scanning velocity modulation type enhancement responsive to both contrast and sharpness controls
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 17, 1992
Grant Date -
N/A
app pub date -
Jun 4, 1991
filing date -
Jun 5, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An outline compensation apparatus for a television receiver includes a circuit for detecting outlines of regions of a picture, expressed in a video signal, and a velocity modulation circuit for effecting outline enhancement in response to an output signal produced from the outline detection circuit. The amplitude of that output signal is controlled in accordance with both a contrast adjustment signal and a sharpness adjustment signal that are used to process the video signal in order to modify the degrees of contrast and sharpness of definition of the picture, respectively. The operation of the outline compensation apparatus is thereby made to effectively complement any increase or decrease of display contrast and sharpness that results from the application of the contrast adjustment signal and sharpness adjustment signal, enabling the user to more easily adjust the television receiver to obtain a clear and natural-looking displayed picture.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully