A spacer discharging apparatus and method of a field emission display are disclosed. The intravaginal devices include a first segment comprising an outer surface and a lumen containing a lubricant, wherein the first segment is configured to deliver the contents of the lumen to the outer surface, and the first segment comprises a polymer selected from the group consisting of a hydrophilic, semi-permeable elastomer and a hydrophobic elastomer. Specifically, for each of the plurality of bursts, a frequency band occupied by the burst is indicated by the order within its n-tuple of an element corresponding to the burst. If no match is found, sub-strings are formed by grouping together frequently occurring sets of characters.