The jury decided, not the judge, and I'm going off of court documents, not the press.
Rambus had no duty to disclose.
It was right there in the manual, so how not?
BTW, it's not like I don't appreciate Rambus' actual inventions. Their RDRAM made my Nintendo 64 rock back in the day.
The problem with such position is that the jury heard what the judge would allow it to hear. The judge had no pretense of objectivity. Whatever Infineon wanted was granted. Whatever Rambus wanted was denied. Furthermore, the jury also found Rambus guilty of defrauding JEDEC with respect to DDR. Rambus had already withdrawn from JEDEC before JEDEC began thinking about DDR. Even judge Payme had to overrule the jury on it's JEDEC DDR fraud ruling.
It was right there in the manual, so how not?
A duty to disclose existed only in the JEDEC chairmans manual. The JEDEC members manual communicated no duty to disclose whatsoever.