Abstract: A compositing system (300) that comprises an optimized alpha-channel compositing module (303) is disclosed. The compositing system (300) optimizes the range correction in the alpha-channel compositing module (303) by using a constant divider (401) and delaying the correction of an alpha value until after the summation of the alpha values from all contributing regions. Uncorrected opacity values are used to index a look-up table in order to reduce the data processing path to a multiplier (407) for processing after premultiplication of a color values from all contributing regions.

Abstract: The apparatus comprises a discrete wavelet transform (DWT) engine, a code block manager, and an entropy encoder. The code block manager comprises at least one controller, which losslessly compresses the transform coefficients and stores them in a code block storage for buffering. The entropy coder comprises at least one entropy encoder, each comprising a decoder for decoding the losslessly compressed transformed coefficients prior to entropy encoding.

Abstract: A method, an apparatus (100) and a computer program product for entropy coding of discrete wavelet transform (DWT) coefficient bits that are arranged into code blocks and coded in bitplane order using three coding passes for each bitplane are disclosed. In the method, transform coefficients of a code block (200) in sign-magnitude form are pre-analyzed. Statistical data about the coefficients is stored, preferably with the coefficients. Significance state data (330), coded data (340), magnitude refinement data (350), bit data (310), and sign data (320) for the code block are buffered. More preferably, the buffering is implemented using a FIFO (120, 1130), located between a context generation module (110, 1120) and an arithmetic coder (130, 1150). Based upon the statistical data, at least one command for at least one sequence of bit and context pairs is generated for arithmetic encoding.

Abstract: A compositing system (300) that comprises an optimized alpha-channel compositing module (303) is disclosed. The compositing system (300) optimizes the range correction in the alpha-channel compositing module (303) by using a constant divider (401) and delaying the correction of an alpha value until after the summation of the alpha values from all contributing regions. Uncorrected opacity values are used to index a look-up table in order to reduce the data processing path to a multiplier (407) for processing after premultiplication of a color values from all contributing regions.

Abstract: A method for transdermal delivery of naloxone, naltrexone and nalbuphine base through intact skin is described. Preferred embodiments of transdermal therapeutic systems for delivering these drugs and polyethylene glycol monolaurate employ an ethylene vinylacetate matrix containing drug base at a concentration above saturation and polyethylene glycol monolaurate below unit activity. Polyethylene glycol manolaurate is disclosed as a permeation enhancer for the base form of these drugs and is preferably delivered simultaneously with the drug.