An apparatus for positioning a data storage cartridge. In particular, the package evaluation systems and methods are configured for performing package evaluations and managing and providing access to data resulting from package evaluations. , constipation associated with use of opiate pain killers, post-surgical constipation, and constipation associated with neuropathic disorders as well as other conditions and disorders using peptides and other agents that activate the guanylate cyclase C receptor. A plurality of spaced apart coupling gates each extending in the row direction and over the floating gates. An interference cancellation procedure is performed on received signals to remove signals corresponding to first code group therefrom and to obtain a removed signal.