It is very similar in the basics. A mixture that may be too lean to ignite via spark ignition can nonetheless sustain combustion if it is "hit" with enough ion

It is very similar in the basics. A mixture that may be too lean to ignite via spark ignition can nonetheless sustain combustion if it is "hit" with enough ions, high-energy molecules, or radicals. Hence the "pre chamber" which initially ignites a richer mixture with a low ignition induction time. The difference between what is discussed here vs. the CVCC seems to be principally about the kind of precise control that we can achieve using today's technologies, including electronic control and micro-machining. From there, it looks like the shaping and direction of the combusted jet from the pre-chamber has been well-optimized in comparison to systems like CVCC.