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Canon Patent Application: Some Detailed Patents on Canon's New Accessory Shoe
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Canon Patent Application: Some Detailed Patents on Canon's New Accessory Shoe

In our cruising through this week's patents, we found an interesting set of patents that detail some of Canon's work on the accessory shoe featured in the EOS R3 (that you should have preordered by now).

If you are curious about what may be available for the shoe in the future, this would be the first place I'd look for information.

Patent Application 2021-167942

This patent application deals with the positioning of power and ground to ensure that if the accessory is bumped on the side that the chances of a short circuit occurring at the shoe are minimized.

Patent Application 2021-167944

What this patent application is describing in the pin arrangements in the accessory shoe.

Patent Application 2021-167945

Noise and interference suppression by the arrangement of the data and signal contacts.

Patent Application 2021-167946

Noise and interference suppression caused by the clock signals

Patent Application 2021-167947

Reducing communication error when the device is connected into the accessory shoe

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