In one embodiment, an apparatus for communicating using UWB transmission includes a transmitter configured to transmit the UWB transmission; a receiver configured to receive the UWB transmission; and a monitor unit configured to present data representing a relationship between two types of parameters of the received UWB transmission. To control the video presentation speed, a comparator compares a program clock reference in a video packet with a local time. The method is especially suited for analysis for the concentration of glucose in blood or tissue of diabetic patients, a device being implanted underneath the skin of the patient and the method being carried out by using the implanted device. One of the lower page or the upper page of the predetermined memory cells is reprogrammed with the first or second predetermined data, respectively.