A medical device for fragmenting objects and aspirating remaining debris enables a physician or other medical personnel quickly and easily remove objects, such as kidney stones, from a patient. The system utilizes a database of n-phones as the smallest selectable unit, wherein n is larger than 1 and preferably 3. 11 STA may receive an omni-directional indication of a first sectorized transmission opportunity associated with a second STA. The acoustic processing section performs acoustic processing corresponding to the adjusted focal length, on an audio signal corresponding to the video signal. In the method, the pattern of printed areas and spaces for a given data input is determined and a given length is added to the length of each space while the length of the printed areas remains unchanged to enlarge the overall length of the resulting code symbol in the at least one dimension.