UK court invalidates three Samsung 3G patents

Patents were in dispute in Samsung cases against Apple

A U.K. court has invalidated three Samsung patents that cover 3G technology in two rulings in cases between Samsung and Apple, according to court filings published on Thursday.

Samsung alleged that Apple infringed on the patents with 3G-enabled devices, including the iPhone 4, iPhone 4S and the iPad 2 3G, according to court documents.

The High Court of Justice, Chancery Division Patents Court in London dealt with the case in two parts. The first part covered two of the patents and the second part concerned the third patent. Justice Christopher Floyd ruled all three Samsung patents invalid.

In the first case, Floyd dealt with the 726 and the 675 patent. The 726 patent is entitled "turbo encoding device and method for processing data according to QoS," or Quality of Service. The patent concerns an aspect of channel coding in a mobile telecommunications system using turbo codes, according to the judge. The patent is invalid because it is not entitled to the priority claimed by Samsung, he wrote. This basically means that the patent cannot be granted because the technology involved is similar to previously patented technology. In other words, it lacks an inventive step, said Rainer Osterwalder, director of media relations at the European Patent Office.

If valid, the 726 patent would have been infringed by Apple's UMTS compliant devices, Floyd wrote.

The 675 patent too is not entitled to the priority claimed and is therefore invalid based on Samsung's admission, Floyd said in his ruling. The patent at stake deals with an "apparatus and method for channel coding and multiplexing in a CDMA communication system" and is concerned with converting the output of channel coders into a form suitable for transmission on the physical channel, according to the verdict.

The third patent was the 404 patent, which describes a technology that is broadly concerned with the structuring of individual data streams that are transmitted simultaneously on the same frequency range from a mobile device to a base station, Floyd wrote.

"My overall conclusions are that the 404 patent as proposed to be amended is invalid both because it has lost priority and is accordingly rendered invalid by intervening prior art (on the basis of Samsung's concession) and because it is, in any event, obvious. If it had survived these attacks, it would have been infringed by Apple's accused, HSUPA enabled devices," Floyd wrote.

"We are disappointed by the court's decision. Upon a thorough review of the judgment, we will decide whether to file an appeal," said a Samsung spokeswoman in an emailed statement. "For decades, we have heavily invested in pioneering the development of technological innovations in the mobile industry, which have been constantly reflected in our products. We will continue to take the measures necessary to protect our intellectual property rights," Samsung added.

Apple declined to comment on the verdict.

Loek is Amsterdam Correspondent and covers online privacy, intellectual property, open-source and online payment issues for the IDG News Service. Follow him on Twitter at @loekessers or email tips and comments to loek_essers@idg.com

Join the PC World newsletter!

Error: Please check your email address.

Tags Appleintellectual propertySamsung Electronicslegalpatent

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Loek Essers

IDG News Service
Show Comments

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?