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Some more DPAF patent applications
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Some more DPAF patent applications

Some more Dual Pixel Auto Focus patents as Canon looks to improve the excellent DPAF sensors that we have today.

Patent Application US20170310913

Another patent dealing with how to handle pixels at the outer edge of the periphery of a mirrorless sensor.

Read more about it here .. 

Patent Application 20170310912

This patent deals with the efficiency of getting focus (or defocus data) off of a dual pixel AF sensor, when doing this method of only reading out certain lines for AF, the black level between AF read and non-AF read areas may be different.  This patent deals with improving the black level calculation and image adjustment and removing the potential for banding between AF and non AF areas.

Read more about it here ..




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How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

  1. Go to the Japan Patent Office search page.
  2. If it's a patent application (they are usually in the format of Year-Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
  3. Click on search.
  4. Then click on the patent application number link, and there's the patent application!

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