AMD sued over predictive snooping

Opti Inc sued AMD in a Texas district court over US patent 5,710,906; 5,813,036; and 6,405,291.

These all bear the legend "Predictive snooping of cache memory for master initiated accesses".

The firm has already sued Nvidia over the same patents. That case ended on the 11th of August 2006 with both parties coming to some sort of agreement and the judge dismissing the case with prejudice.

Opti reckons AMD breached the patents by manufacturing and selling both CPUs and core logic products using predictive snooping technology.

Opti wants redress. µ

* DETAILS of the redress it got from Nvidia are here. A $10,000,000 payment followed by more quarterly payments starting in 2007.