A redundancy scheme for a memory is disclosed that is programmable both before and after the memory device is packaged andor installed in a system. Upon receiving a signal, the receiver determines a maximum fluctuation range as a function of at least a fourth-order cumulant of a received signal; and classifies a modulation type of the received signal as a function of the determined maximum fluctuation range. , as a bunk for sleeping upon within a vehicle, such as, e. The gellants may be used in curable gel inks. A digital image of at least one tooth is acquired using the intra-oral sensor and the spatial location information is automatically associated with the acquired digital image.