This has been done with thousands of the patents involved in the H.264 video encoding format, so that operating system makers wishing to make use of the codec pay a 20 cent (13p) charge per sale to cover the rights-holders claims without having to negotiate with each one.

BBC: Tech firms and regulators meet at UN patent pow-wow

It has a proprietary system for encoding 2D and 3D video using occlusion, which is delivered to standard panels that have been retrofitted with its optical glass sandwich to bring the spec-less 3D illusion to viewers.

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