French technology company Thomson SA said Monday it was joining Microsoft Corp. and Time Warner Inc."s proposed venture to make anti-piracy software, a move that could relieve European Union concerns about the pending deal. In a joint statement, the companies said Thomson has agreed to purchase a 33 percent voting stake in U.S.-based ContentGuard, changing the deal from a two-company joint venture to three.
Together, they aim to develop new standards in so-called digital rights management technologies, which allow online access to movies, music and other digital content while protecting it from unauthorized copying and counterfeiting. Regulators say the burgeoning technology also could be critical to businesses that need to guarantee a secure exchange of documents.