A method and apparatus for multiview image generation using depth map information is described. An annular sealing member provides a water tight seal. The conductive element has a first outer conductive portion and a second outer conductive portion for generating force parallel to the magnet system. Finally, the apparatus includes data-gathering means physically separate from but compatible with the read port and programmed to read the data from the first memory in accordance with the protocol, the data-gathering means including a second non-volatile memory for recording the data read from the first memory. Alternatively, the first signal may be modulated and the second signal may be observed for the presence of the modulation.