Detecting phase and frequency of light source flicker and driving image sensor in phase when light source flicker is brightest
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 16, 2010
Grant Date -
Oct 13, 2005
app pub date -
Mar 7, 2005
filing date -
Sep 9, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An image sensor comprising a number of light sensor circuits each representing a unit pixel and capable of outputting a sensor signal corresponding to a photo current produced in a photoelectric converting element in proportion to light falling thereon, which is provided with a way of detecting a period and a phase of flicker in light from a light source and a way of determining timing of obtaining the maximum brightness of the light source based on the flicker detection signal and reading sensor signals from respective pixels at the timing determined. This image sensor can easily prevent the effect of flicker resulting from flicker of the light source to an image taken and displayed by the image sensor with no need for adjusting the time of accumulating a charge in the capacitor in accord with incident light thereon and compensating an image signal to be displayed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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