InterTrust Technologies, a digital rights management company, said Thursday that it has filed a second patent infringement lawsuit against Microsoft, targeting technology that helps connect audio players and other peripherals to PCs. InterTrust, which makes software that protects songs and videos from being illegally copied, alleges that Microsoft infringed on its patent for technology that certifies and authenticates drivers. Driver software allows computer peripherals--such as printers, game consoles, and audio and video players--to connect with computers. InterTrust's technology, which was awarded a patent in December 2000, ensures that the drivers are compatible with an operating system.
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