An image processing apparatus includes a generating unit configured to generate image signals for displaying content on each of a plurality of screens; and a synthesizing unit configured to synthesize a plurality of sound signals corresponding to the plurality of image signals to cause positions where sounds based on the plurality of sound signals are localized to vary from each other. In some embodiments, the present invention generally provides for gastric banding systems having a satiety booster, for example, to increase satiety levels when a patient desires to curb appetite at a particular time. The nitrogen gas so produced may be useful to actuate mechanical transducers in fluid dispensers. At a decoding end, received data packets are distributed again to a block of data symbols and missing data packets are reconstructed based on these data symbols and on error correction symbols associated to the block. The creation of the opening and deployment of the anastomosis device may be actuated with a single control. The present invention also teaches that the marks can present human readable information related to the nature of the machine readable information stored therein.