Rambus (RMBS) - Eagle or Penguin Message Board

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Technology Stocks : Rambus (RMBS) - Eagle or Penguin

RMBS 94.23

-11.1%

Dec 12 9:30 AM EST

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To: gnuman who wrote (56837)	10/6/2000 4:01:34 PM
From: jim kelley	Read Replies (5) of 93625

"Rambus Inc.'s basic Direct RDRAM design violated Infineon Technologies AG patents, the German chipmaker charged in a countersuit filed today in federal district court in Richmond, Va." It is clear that RDRAM, SDRAM and DDR SDRAM use dram cell designs from an earlier era. But RAMBUS patents go beyond that era. Infineon patent claims from an earlier time would have to read on top of Rambus' patent claims in order for there to be precedence on the part of Infineon. This is extremely unlikely because RDRAM is a radical departure from the earlier DRAM. We will have to wait to see the particulars. "Infineon denied those charges and went after Rambus' core Direct RDRAM design as well. The Munich-based Infineon, spun off from Siemens AG in 1999, charged that Rambus used Infineon patents in its RDRAM designs that were passed to all other Rambus licensees." Again, Infineor has to show that all the novel elements of the RDRAM design were shown in earlier Infineon patent disclosures , e.g., in their drawings and their writeup. Alternatively, they would have to show that their patent claims read right on top of Rambus' patent claims. Either or both of these events is extremely unlikely. In addition, Infineon is a RDRAM licensee and presumably has already reviewed the RDRAM technology before signing its license. Part of that licensing agreement gives RAMBUS the right to any improvement in the RDRAM technology and the right to use any related patents by Infineon. This is to allow a consistent RDRAM design standard across the industry. "Infineon is citing pre-existing invention and art for both synchronous DRAMs and Direct RDRAM before Rambus ever applied for its patents." Hyundai is also claiming prior art. But in looking at the prior art referenced by Hyundai it is obvious that the patent office already considered it before granting Rambus the patent. The prior art patent in question is referenced in Rambus' patents. It would be interesting to get some more details.

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