Video camera with flare correcting circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 18, 1994
Grant Date -
N/A
app pub date -
Mar 30, 1992
filing date -
Apr 4, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video camera equipped with an image sensor for producing an analog video signal, an A-D converter for converting the analog video signal to a digital video signal in a manner that any component thereof above a predetermined luminance level is clipped, and a flare correcting circuit for removing any flare component superposed on the digital video signal. The flare correcting circuit comprises an average luminance level detector for detecting the average luminance level during a time period of several fields of the digital video signal; a clip period detector for detecting the time period, during which the analog signal is clipped, when the analog video signal is converted to the digital video signal by the A-D converter; a flare correction signal generator for producing a flare correction signal in accordance with the output signal of the average luminance level detector and the output signal of the clip period detector; and a subtracter for subtracting the flare correction signal from the digital video signal.
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