A method includes establishing in a peripheral device at least first and second communication links with respective first and second hosts. Each signal has been modulated according to a different modulation scheme. The detection area of the radar is adjusted first based on measurements taken of the target by the radar and thereafter axial displacement of the detection area of the camera is determined a coordinate conversion parameter is obtained based on an image of the target taken by the camera. The cylindrical electrode comprises upper and lower sections. In the preferred embodiment, the insert member is designed to be selectively removed from the book container by the customer and may be used in a promotional scheme offered by the distributor or seller.