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Keith over at <a href="http://www.northlight-images.co.uk/canon-camera-rumours-and-info/">Northlight Images has uncovered a large number of sensor patents</a> from Canon. When you put all of these together, you get some interesting full frame sensors that will work with lenses that are quite close.</p>
<p>If you’re bored and love reading patents, take a peak at the list below. (Summarized by Keith)</p>
<ul>
<li>Canon patent info looking at asymmetric micro lenses for sensors [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09768217">USPTO</a>]</li>
<li>Canon have a slew of US patents dealing with aspects of DPAF, such as one looking at how you deal with the split in well capacity [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09781328">USPTO</a>]</li>
<li>Another looks at making use of contrast to improve the efficiency of phase AF [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09781329">USPTO</a>]</li>
<li>If you put lots of smaller BSI pixels under each micro lens you can improve sensitivity and DR [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09773827">USPTO</a>]</li>
<li>Automating focus micro adjustment is covered [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09781330">USPTO</a>]</li>
<li>Ever wondered what your camera is up to between shutter press and shutter release, when you are in AF/AE mode [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09781331">USPTO</a>]</li>
<li>Oh, and one more for those keeping up with curved sensor development [<a href="http://pdfpiw.uspto.gov/.piw?PageNum=0&docid=09781367">USPTO</a>] – equalizing the influence of bending on dark current</li>
</ul>
<p>This all feels related to Canon’s upcoming full frame mirrorless camera(s).</p>
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