NEW YORK - Chip designer Alereon Inc. said Monday it is releasing the first chip that uses a frequency band that is legal all over the world for wireless USB, a technology with the potential to cut the tangle of cables surrounding computers.

The new chip could prove an important step in persuading computer makers to incorporate the technology. A few wireless USB products are already on the U.S. market, but they send and receive signals over a frequency that isn't legal in most of the world because of potential interference with radar.

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