82 patents Imgaination is buying are strictly related to MIPS architecture, essential for Imagination to develop MIPS core further.
While 498 patents ARM-led consortium is buying is more on fundamental processing.
It's important to note that Imagination is granted with "royalty-free, perpetual licence" to all of the remaining 498 patents it did not purchase.
Rick, don't you and Junko work at the same company? I see UBM editors writing to each other often in article comments. Maybe you could peer-review or read each others' stories before publishing them rather than asking the questions with the rest of the readers.
As for the topic of this article, the MIPS architecture has had very limited success outside of networking and is not in the broad spectrum of markets that ARM continues to seep into. Outside of networking, MIPS's primary value is in its patent portfolio. Indeed, that is something that both ARM and Imagination should be able to take advantage of in their own designs and/or monetize through licensing - a fundamental part of their businesses.
We editors like to join and spark the online conversation in the "open source" world rather than do it privately. We get more crowd sourcing smarts from the engineering world that way.
Question for you, Tom: Does this deal significantly upset the balance of processor patents in the ARM vs. Intel camps?
So Imagination seems to be replacing its own home-grown CPU for an industry standard one. Where does Imagination sell it's CPUs - do they expect to compete with ARM with their graphics-cpu combination - which markets?
ARM's interest squarely rests on the general patent protection. By being a part of the consortium which bought 498 patents out of MIPS' large patent portfolio (580 patents to be exact), they seek for the protection from any future law suits.
From what I understand, AST -- the consortium -- is not in the business of litigation, but rather, it exists to make sure these essential patents, such as those by MIPS, won't fall into the hands of patent trolls.