The deep rivalry between Nokia and Apple, which is already fraught with lawsuits and counter-suits, has resulted in another new patent infringement claim relating to iPhone technology.
Scrutiny is now focused on the means by which the iPhone and the iPad with 3G connectivity employ voice and data-enhancing techniques, as well as the internal antennae technology which allows the devices to be so compact.
"We've taken this step to protect the results of our pioneering development and to put an end to continued unlawful use of Nokia's innovation," said Nokia's Paul Melin.
Nokia says that its investment of £34 billion over 20 years has allowed it to research and develop over 11,000 individual patents and it is clearly looking to protect the results.
Whilst Nokia and Apple are involved in various patent infringement cases, with claims of wrongdoing on both sides, Apple has also opened up a second front against Taiwanese smartphone manufacturer HTC.
The goal in most patent disputes is to secure a licensing agreement for the victor, which will see royalty payments over the life of the technology.
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