Feeds

AMD accused of patent violation

Opti files lawsuit

Secure remote control for conventional and virtual desktops

US chip-related intellectual property company Opti has accused AMD of infringing three of its patents, all centring on techniques microprocessors can use to predict cache memory access requirements.

Opti's lawsuit, filed with the US District Court for the Eastern Texas, claims AMD is shipping CPUs that use such techniques and that AMD does so without its permission. It also claimed AMD "induced" other companies to infringe the patents too - in other words, by selling allegedly infringing processors to its customers.

The three patents at issue are US patents 5,710,906, 5,813,036 and 6,405,291, all entitled "Predictive Snooping of Cache Memory for Master-Initiated Accesses". The first two patents were awarded in 1998, the third in 2002. The later patents represent continuations of the first one.

Opti wants a jury trial, it said, and will ask the court to ban the sale of the AMD chips it claims infringe its patents and award damages.

Opti has form here. Just over two years ago, it filed a very similar complaint against Nvidia. The two companies reached a settlement in August this year: Nvidia will pay Opti $750,000 a quarter from February 2007 onwards for a three-year period, or simply cough up a one-off payment of $7m, Opti's most recent filing with the US Securities and Exchange Commission reveals. ®

Beginner's guide to SSL certificates

More from The Register

next story
Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
The Fourth Amendment... and it IS better
Don't wait for that big iPad, order a NEXUS 9 instead, industry little bird says
Google said to debut next big slab, Android L ahead of Apple event
Microsoft to enter the STRUGGLE of the HUMAN WRIST
It's not just a thumb war, it's total digit war
Ex-US Navy fighter pilot MIT prof: Drones beat humans - I should know
'Missy' Cummings on UAVs, smartcars and dying from boredom
Netscape Navigator - the browser that started it all - turns 20
It was 20 years ago today, Marc Andreeesen taught the band to play
A drone of one's own: Reg buyers' guide for UAV fanciers
Hardware: Check. Software: Huh? Licence: Licence...?
The Apple launch AS IT HAPPENED: Totally SERIOUS coverage, not for haters
Fandroids, Windows Phone fringe-oids – you wouldn't understand
Apple SILENCES Bose, YANKS headphones from stores
The, er, Beats go on after noise-cancelling spat
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.