A U.S. judge dismissed a $1.5 billion judgment against Microsoft for allegedly infringing on Alcatel-Lucent's patent for MP3 technology.

Microsoft originally licensed the MP3 technology from a company called Fraunhofer, which was later acquired by Alcatel-Lucent. The company then sued Microsoft, claiming the technology was subsequently improved without Microsoft paying additional fees.

The judge reversed the damage verdict, saying the jury's decision was wrong.

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