Abstract: The present disclosure provides an aerosol delivery device and a control unit for use in an aerosol delivery device configured to receive a removable and replaceable aerosol precursor consumable. The control unit comprises a body frame having a proximal end and a distal end, the proximal end of the body frame defining a first portion of a receiving chamber, and a removable and replaceable housing panel configured to be releasably received onto the body frame. In one implementation, the housing panel forms part of an outer surface of the control unit, and the housing panel forms a second portion of the receiving chamber. In another implementation, the housing panel forms part of an outer surface of the control unit, and the body frame includes a rail feature configured to slidably engage a complementary rail feature of the housing panel.

Abstract: Embedding a watermark includes organizing variation locations in a data stream, partitioning the data stream into small blocks, determining the variation of small blocks based on the variation, categorizing small blocks into big blocks, identifying those big blocks that have a threshold level of variation, and embedding into those identified big blocks a watermark value.

Abstract: Embedding a watermark includes organizing variation locations in a data stream, partitioning the data stream into small blocks, determining the variation of small blocks based on the variation, categorizing small blocks into big blocks, identifying those big blocks that have a threshold level of variation, and embedding into those identified big blocks a watermark value.