BT's research, technology and IT operations business has sold a raft of key patents to the Korean electrical giant LG Electronics (LGE), in what it says is its largest ever intellectual property deal.
Under the terms of the cross-licensing deal between BTexact and LGE, the two fims will share a variety of each other's patents.
It involves the sale of BTexact's voice activity detector (VAD) patents, developed in the late 1980s, to LGE.
VAD - a technology that is incorporated into various telecoms standards, including GSM - detects the presence or absence of voice to prolong battery life in mobile devices, and increases the capacity of the network.
Mike Carr, director of research and venturing at BTexact, said: "This cross-licensing deal means LGE and BTexact will have joint access to a formidable bank of patents, which may not be equalled by any other global technology companies."
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