A United States video camera firm has developed a monitor or TV set-top unit with a lens that automatically follows the subject around the room. Joanna Ching, manager of international sales for ParkerVision, said the CameraMan was compatible with popular video-conferencing systems from Intel, PictureTel or Tandberg. Ms Ching said the wider deployment of medium-to high-bandwidth network access in Asia had encouraged ParkerVision to seek distribution agreements in the region.