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66results about How to "Limited set" patented technology

Melt-crystallization separation and purification process

Processes for separating a solid from a solids-liquids slurry under conditions that prevent ingress of molecular oxygen are advantageous where the presence of molecular oxygen would otherwise reduce efficiencies, contribute to limited product yields, and potentially compromise safe operation of the process or downstream unit operations. Among the various embodiments disclosed herein, is a process utilizing filter columns as solid-liquid separators in combination with crystallization and reslurry unit operations to recover a product component from an initial feed mixture of miscible components. Embodiments of the disclosed processes may include the separation and purification of a product component using a crystallizer in series with a filter column followed by a chemical reactor, using a reslurry drum in series with a filter column, and using a combination of crystallizers and / or reslurry drums in series with at least one filter column. The use of filter columns in such processes is particularly attractive because these columns, when operated under the conditions disclosed herein, limit the undesirable ingress of molecular oxygen into the various process streams, and further improve process efficiencies related to both product component recovery and operating costs.
Owner:BP CORP NORTH AMERICA INC

Reduced complexity detector for multiple-antenna systems

A reduced-complexity maximum-likelihood detector that provides a high degree of signal detection accuracy while maintaining high processing speeds. A communication system implementing the present invention comprises a plurality of transmit sources operable to transmit a plurality of symbols over a plurality of channels, wherein the detector is operable to receive symbols corresponding to the transmitted symbols. The detector processes the received symbols to obtain initial estimates of the transmitted symbols and then uses the initial estimates to generate a plurality of reduced search sets. The reduced search sets are then used to generate decisions for detecting the transmitted symbols. In various embodiments of the invention, the decisions for detecting the symbols can be hard decisions or soft decisions. Furthermore, in various embodiments of the invention, the initial estimates can be obtained using a plurality of linear equalization techniques, including zero-forcing equalization, minimum-mean-squared-error equalization. The initial estimate can also be obtained by nulling and canceling techniques. In various embodiments of the invention, the data output corresponding to the transmitted symbols can be obtained using a log-likelihood probability ratio. The method and apparatus of the present invention can be applied to any communication system with multiple transmit streams.
Owner:AVAGO TECH WIRELESS IP SINGAPORE PTE

Video decoder with a programmable inverse transform unit

A data processing apparatus is provided for performing video decoding operations on blocks of video data, the data processing apparatus comprising: a programmable inverse transform unit configured to perform an inverse transform operation on a set of input values in response to a sequence of instructions, the programmable inverse transform unit comprising a first execution path and a second execution path arranged to perform data operations to implement the inverse transform operation, wherein the data operations performed by the first and second execution path are configured in dependence on the sequence of instructions, wherein the programmable inverse transform unit is configured to operate in a first mode in which each instruction in the sequence of instructions is interpreted using a first instruction length and causes the first execution path and the second execution path to be configured independently of each other, and the programmable inverse transform unit is configured to operate in a second mode in which each instruction in the sequence of instructions is interpreted using a second instruction length, the second instruction length being shorter than the first instruction length, and causes the second execution path to be configured in dependence on a configuration of the first execution path.
Owner:ARM LTD
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