No, Intel wasn’t granted a patent for AMD Zen structure

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In short: There are numerous examples of applied sciences that the patent holder might by no means transfer past the design desk. There are in all probability much more filed simply to forestall competition from patenting one thing an organization may paintings on one day. On the other hand, as a up to date Intel patent illustrates, there also are some patents full of plagiarized content material.

On Wednesday, a Twitter consumer going by means of Underfox printed an interesting-looking patent lately awarded to Intel. Underfox suspects the patent is also associated with Intel’s Ocean Cove CPU structure, which is predicted to be the successor of the Golden Cove structure used within the efficiency cores of twelfth technology Alder Lake processor designs.

Extra importantly, a superficial inspection unearths it incorporates blocks of textual content and diagrams that glance strikingly very similar to the ones used to explain AMD’s Zen processor structure all over a presentation on the Sizzling Chips 28 match in 2016. So it seems like Intel carried out for a patent for AMD’s tech in August 2018 when it submitted the applying.

On the other hand, upon nearer inspection, the 122-page file describes a number of architectural options of x86 and Arm CPUs, GPUs, RISC-V, and extra. {Hardware} analyst and previous AnandTech senior editor Dr. Ian Cutress notes that it’s most commonly beef up fabrics for a generic CPU structure that Intel sought after to explain within the patent — a way to transparent a cache line that’s not at risk of side-channel assaults of the Spectre selection.

Curiously, the file cites a piece of writing written by means of Dr. Cutress again in 2016 and makes use of black-and-white variations of the AMD slides mentioned in his research of the first-generation Zen structure. Intel and AMD have a cross-licensing settlement signed in 2009 that stops the 2 corporations from suing every different for patent infringement, however this does not follow to the file in query.

It seems that to be a case of a poorly-designed patent file with plagiarized content material. Intel does not declare to have invented AMD’s Zen microarchitecture, however relatively the real patented tech is buried in copy-pasted content material. The amateurish task has invited hypothesis that Intel produced this patent with malicious intent, however we’ve got but to peer proof to beef up this. If the rest, it seems like Intel has been running on techniques to support the safety of its processors, even supposing it (formally) believes its designs are safe sufficient as they’re.

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