Abstract: The invention comprises a method for lossy data compression, akin to vector quantization, in which there is no explicit codebook and no search, i.e. the codebook memory and associated search computation are eliminated. Some memory and computation are still required, but these are dramatically reduced, compared to systems that do not exploit this method. For this reason, both the memory and computation requirements of the method are exponentially smaller than comparable methods that do not exploit the invention. Because there is no explicit codebook to be stored or searched, no such codebook need be generated either. This makes the method well suited to adaptive coding schemes, where the compression system adapts to the statistics of the data presented for processing: both the complexity of the algorithm executed for adaptation, and the amount of data transmitted to synchronize the sender and receiver, are exponentially smaller than comparable existing methods.

Abstract: A method for fast booting an operation system on multiple processors coupled in multi-dimensional array architecture with higher efficiency and reliability. A particular PLEX™ node, which is designated as a primary boot master node, receives a sequence of data packets containing a boot image program to be used to boot the operating system. It first forwards a copy of each data packet to various selected neighboring nodes to which the primary boot master node is directly connected. The nodes that have received the data packets from the primary boot master node further forward the data packets to various other selected nodes, until all the PLEX™ nodes have succeeded in loading the entire boot image program. Three schemes are developed, which improve booting efficiency by allowing all PLEX™ nodes to receive the operating system as close to simultaneously as possible under certain constraints of the way that the PLEX™ nodes are interconnected.

Abstract: A method and processor architecture that implements the delivery of compressed digital video and audio content over a broadband network is disclosed.

Abstract: The invention provides a mechanism for implementing a common carrier, multiple output RF upconverter. The preferred embodiment of the invention comprises a method and apparatus for distributing the LO signals for both the first and second LO functions to several upconverter sections simultaneously. This technique eliminates the frequency synthesizers and VCOs typically required for each individual upconverter section, thereby substantially reducing the board space and component count required to perform this function. By providing a distributed LO, only two LO synthesizers and VCO's are required per board, where a board might support anywhere from two to twelve or more upconverters.