An anonymous reader writes "JEDEC hasn't finalized the upcoming DDR4 standard yet, but it seems they left out licensing some crucial IP for (the already finalized and shipping) LRDIMMs (for use on data center servers). As a result they are only produced by one source which is facing some hurdles justifying their copying of IP. This article discusses how DDR4 is based on LRDIMMs and the future of memory. Quoting: 'JEDEC finalized the LRDIMM standard without securing licensing on load reduction and rank multiplication. Inphi, currently the only maker of LRDIMM buffer chipsets – others have backed off – lost a challenge of Netlist IP at the USPTO. As a result the Netlist patents have become stronger and are going to come back and bite Inphi in Netlist vs. Inphi, which was stayed pending these patent reexaminations – patents which survive re-examination can never again be challenged in court. NLST patents ’537 and ’274 survived with all claims intact, which is a powerful statement on the strength of their IP – Inphi has appealed to the BPAI, but the USPTO decision is telling.'"
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