Patent application number | Description | Published |
20100306009 | SPECIAL-ORDERED-SET-BASED COST MINIMIZATION - An embodiment of the invention is directed toward determining a solution to an objective function that is to be maximized or minimized. An initial feasible basis is determined. An entering variable is determined to enter the initial feasible basis. It is determined if there is an exiting variable. While there is an exiting variable, the exiting variable is removed from the feasible basis, the entering variable is added to the feasible basis, and a new entering variable is determined. | 12-02-2010 |
20100312726 | FEATURE VECTOR CLUSTERING - One goal of computer services (e.g., email, web pages, blogs, advertisements, etc.) is to provide a user with Kinds (digital representations of everyday things) that may be relevant and interesting to the user. Users and Kinds may be plotted within a multidimensional matrix as feature vectors based upon their respective characteristics. An unsupervised clustering technique may be executed upon the matrix to create a mathematical cluster of feature vectors having similar characteristics. For example, a clothing cluster may comprise a dress Kind, a shoe Kind, a wool Kind, a watch Kind, etc. because the unsupervised clustering technique may determine these Kinds are plotted within the matrix in such a way that they have similar characteristics relating to clothing. The unsupervised clustering technique may also be utilized in determining which Kinds may be relevant to a user given a particular context with which a user is engaged with a computer resource. | 12-09-2010 |
20100312743 | KIND CLASSIFICATION THROUGH EMERGENT SEMANTIC ANALYSIS - A goal of computer development is to understand the user and the data with which the user is engaged. If a better understanding of the user and their data can be accomplished, then additional information and features may be provided based upon the user's intent and interests. Accordingly, as provided herein, Kinds may be created as digital representations of everyday things. Kind classifications may be created to characterize the Kinds. The Kind classifications may be updated based upon user interaction to further characterize Kinds with which the user has interacted. For example, when a user writes an email about using orange peels as an air freshener, an orange Kind classification may be updated to reflect that an orange may be used as an air freshener. Kind feature vectors and user feature vectors may be created to represent the probabilities that the Kind or user relates to particular characteristics. | 12-09-2010 |
Patent application number | Description | Published |
20130110853 | SQL CONSTRUCTS PORTED TO NON-SQL DOMAINS | 05-02-2013 |
20130117257 | QUERY RESULT ESTIMATION - Techniques for efficiently performing queries are provided. A search component can receive a request for information based on data, and a management component can determine a degree of accuracy requested for the information. In turn, the search component can render the information based on the degree of accuracy requested. In an aspect, the search generates a query configured to determine the first information, and the management component instructs the search component to perform the query to a level of completion less than full completion when the degree of accuracy requested is below a predetermined threshold to cause the search component to render an estimation of the first information. In another aspect, a tracking component can track information associated with multiple query requests and an analysis determine and employ a related aspect of the tracked information to a new query request to determine an answer for a the new query request. | 05-09-2013 |
20130117272 | SYSTEMS AND METHODS FOR HANDLING ATTRIBUTES AND INTERVALS OF BIG DATA - Data management techniques are provided for handling of big data. A data management process can account for attributes of data by analyzing or interpreting the data, assigning intervals to the attributes based on the data, and effectuating policies, based on the attributes and intervals, that facilitate data management. In addition, the data management process can determine relations among data in a data collection and generate and store approximate results concerning the data based on the attributes, intervals, and the policies. | 05-09-2013 |
20130159228 | DYNAMIC USER EXPERIENCE ADAPTATION AND SERVICES PROVISIONING - The subject disclosure generally relates to dynamic user experience adaptation and services provisioning. A user experience component can provide a user experience (UX) to a user. The UX can include, but is not limited to, an operating system, an application (e.g., word processor, electronic mail, computer aided drafting, video game, etc.), a user interface, and so forth. A monitoring component can monitor feedback generated in association with interaction with the user experience by the user. An update component can analyze the feedback, and update a user model associated with the user based at least in part on the analysis, and an adaptation component can modify the user experience based at least in part the user model. | 06-20-2013 |
20160092090 | DYNAMIC VISUAL PROFILING AND VISUALIZATION OF HIGH VOLUME DATASETS AND REAL-TIME SMART SAMPLING AND STATISTICAL PROFILING OF EXTREMELY LARGE DATASETS - The present disclosure relates generally to a data enrichment service that automatically profiles data sets and provides visualizations of the profiles using a visual-interactive model within a client application (such as a web browser or mobile app). The visual profiling can be refined through end user interaction with the visualization objects and guide exploratory data visualization and discovery. Additionally, data sampling of heterogeneous data streams can be performed during ingestion to extract statistical attributes from multi-columnar data (e.g., standard deviation, median, mode, correlation coefficient, histogram, etc.). Data sampling can continue in real-time as data sources are updated. | 03-31-2016 |
20160092474 | DECLARATIVE LANGUAGE AND VISUALIZATION SYSTEM FOR RECOMMENDED DATA TRANSFORMATIONS AND REPAIRS - The present disclosure relates generally to a data enrichment service that extracts, repairs, and enriches datasets, resulting in more precise entity resolution and correlation for purposes of subsequent indexing and clustering. As the data enrichment service can include a visual recommendation engine and language for performing large-scale data preparation, repair, and enrichment of heterogeneous datasets. This enables the user to select and see how the recommended enrichments (e.g., transformations and repairs) will affect the user's data and make adjustments as needed. The data enrichment service can receive feedback from users through a user interface and can filter recommendations based on the user feedback. | 03-31-2016 |
20160092475 | AUTOMATED ENTITY CORRELATION AND CLASSIFICATION ACROSS HETEROGENEOUS DATASETS - The present disclosure describes techniques for entity classification and data enrichment of data sets. A data enrichment system is disclosed that can extract, repair, and enrich datasets, resulting in more precise entity resolution and classification for purposes of subsequent indexing and clustering. Disclosed techniques may include performing entity recognition to identify segments of interest that relate to an entity. Related data may be analyzed for classification, which can be used to transform the data for enrichment to its users. | 03-31-2016 |
20160092476 | DECLARATIVE EXTERNAL DATA SOURCE IMPORTATION, EXPORTATION, AND METADATA REFLECTION UTILIZING HTTP AND HDFS PROTOCOLS - Techniques are disclosure for a data enrichment system that enables declarative external data source importation and exportation. A user can specify via a user interface input for identifying different data sources from which to obtain input data. The data enrichment system is configured to import and export various types of sources storing resources such as URL-based resources and HDFS-based resources for high-speed bi-directional metadata and data interchange. Connection metadata (e.g., credentials, access paths, etc.) can be managed by the data enrichment system in a declarative format for managing and visualizing the connection metadata. | 03-31-2016 |
20160092557 | TECHNIQUES FOR SIMILARITY ANALYSIS AND DATA ENRICHMENT USING KNOWLEDGE SOURCES - The present disclosure relates to performing similarity metric analysis and data enrichment using knowledge sources. A data enrichment service can compare an input data set to reference data sets stored in a knowledge source to identify similarly related data. A similarity metric can be calculated corresponding to the semantic similarity of two or more datasets. The similarity metric can be used to identify datasets based on their metadata attributes and data values enabling easier indexing and high performance retrieval of data values. A input data set can labeled with a category based on the data set having the best match with the input data set. The similarity of an input data set with a data set provided by a knowledge source can be used to query a knowledge source to obtain additional information about the data set. The additional information can be used to provide recommendations to the user. | 03-31-2016 |
Patent application number | Description | Published |
20100161289 | FRAMEWORK FOR INTEROPERABILITY OF SOLVERS - A framework may be provided for facilitating adoption of mathematical and logical solvers. A model, representing a problem, may be defined. The model may be defined: via a series of statements in a type safe common-language-specification compliant modeling language; via an intermediate format; or via a series of calls to a standardized application program interface. The framework may translate the defined model to an intermediate format, which many solvers may understand. The framework may provide a number of solver-related services including, but not limited to, services for creating a model, analyzing a model, selecting a well-suited solver based on analysis of a model, decomposing a model into multiple sub-models and providing the multiple sub-models to multiple solvers as multiple parallel threads, data binding, simulation, and post optimality analysis. | 06-24-2010 |
20100169257 | TRANSPARENT PARALLELISM AMONG LINEAR SOLVERS - A model, which defines a mathematical problem, and multiple directives may be received. Each of the multiple directives may be mapped to a respective linear solver instance. The linear solver instances may be launched to execute in parallel. Each of the linear solver instances may use either a primal or a dual algorithm and may further use double arithmetic, exact arithmetic, or hybrid arithmetic, as specified by corresponding ones of the multiple directives. A linear solver instance that uses hybrid arithmetic may start by using double arithmetic and may use exact arithmetic after experiencing a numerical difficulty. After the numerical difficulty is resolved, the linear solver instance that uses hybrid arithmetic may restart and continue to solve the mathematical problem using double arithmetic. After one of the linear solver instances finds an optimal solution, others of the linear solver instances may be stopped and a report may be provided. | 07-01-2010 |
20100169318 | CONTEXTUAL REPRESENTATIONS FROM DATA STREAMS - A user's experience with internet content may be given semantic meaning based upon extracting features of the content and creating kind classifications from the features. Kind classifications may be used to enrich a user's experience with internet content by providing meaningful navigation and discovery of information. As provided herein, a data stream (e.g., HTML, audio, video, unstructured data, etc.) is received, and features (e.g., text, phrases, titles, paragraphs, image data, etc.) may be extracted from the data stream. Kind classifications may be created based upon the extracted features. For example, a shirt image kind classification may be created based upon a button image feature, a collar image feature, and a sleeve image feature. The user's experience may be enriched by a presentation of actions allowing the user to view similar shirts, purchase the shirt, and/or discover other information relating to the shirt, for example. | 07-01-2010 |
Patent application number | Description | Published |
20080220126 | Pet food compositions comprising two components - Pet food compositions comprising a first component comprising a source of protein, a source of fat, and a source of carbohydrate, and a second component comprising a biologic selected from the group consisting of a probiotic component; yeast; enzymes; antibodies; immunoglobulins; cytokines; and combinations thereof are useful for providing pet food compositions that are sufficiently stable such that effective amounts of the biologic are present in the pet food compositions at the time of ingestion by a pet. | 09-11-2008 |
20090191310 | Method for Reducing Acrylamide in Foods, Foods Having Reduced Levels of Acrylamide and Article of Commerce - A method for the reduction of acrylamide in food products, food products having reduced levels of acrylamide, and an article of commerce. In one aspect, the method comprises reducing the level of asparagine in a food material before final heating (e.g., cooking). In another aspect, the method comprises adding to a food material an enzyme capable of hydrolyzing the amide group of free asparagine. In yet another aspect, an article of commerce communicates to the consumer that a food product has reduced or low levels of acrylamide or asparagine. | 07-30-2009 |
20100003369 | PROBIOTIC SUPPLEMENT, PROCESS FOR MAKING, AND PACKAGING - A pet food composition comprising a supplement is provided. The supplement can comprise a Probiotic component, a cocoa butter component, and a sweetener component. A process for making the supplement can comprise providing a sweetener component, a cocoa butter component, and a Probiotic component, mixing the cocoa butter component and Probiotic component to form a mixture in a temperature and humidity controlled chamber; mixing the mixture with the sweetener component in the temperature and humidity controlled chamber to form a final mixture; optionally mixing in a colorant with the final mixture; and cooling the final mixture. A package for the supplement can comprise a secondary container housing a primary container, which houses a supplement. An array of packages is also provided. | 01-07-2010 |
Patent application number | Description | Published |
20080286877 | Displacement assay for detection of small molecules - Complex of an anti-cocaine aptamer and the dye diethylthiotricarbocyanine behaves as a calorimetric sensor with attenuation in absorbance at 760 nm for cocaine in the concentration range of 2-5000 μM. Mechanistic studies indicate an intermolecular displacement of the dye as the mechanism of action of the sensor. As the dye is insoluble in buffer, cocaine binding can be detected as displaced dye precipitates and supernatant decolorizes. | 11-20-2008 |
20090004663 | Real-Time Assays Of Neuro-Humoral Factors To Assess Cardiovascular Stress - The present invention relates to rapid assays for neuro-humoral factors modulated in response to cardiovascular stress and integration of data obtained from such assays to provide profiles of response to cardiovascular stress that can guide therapy. | 01-01-2009 |
20090275027 | Medium scale intergration of molecular logic gates in an automaton - Compositions and methods for optically detecting the presence of a plurality of oligonucleotides in a sample, wherein each oligonucleotide to be detected comprises consecutive nucleotides having a sequence different than the remaining oligonucleotides of the plurality are provided. | 11-05-2009 |
20110065104 | REAL-TIME ASSAYS OF NEURO-HUMORAL FACTORS TO ASSESS CARDIOVASCULAR STRESS - The present invention relates to rapid assays for neuro-humoral factors modulated in response to cardiovascular stress and integration of data obtained from such assays to provide profiles of response to cardiovascular stress that can guide therapy. | 03-17-2011 |
20120114558 | APTAMER-MEDIATED DRUG RELEASE - The present invention relates to aptamer/drug conjugate complexes and the use of such complexes, together with a trigger compound, to inducibly release a drug. Through these complexes, the present invention provides a means for establishing a drug reservoir in a subject, whereby drug may be released as needed. One specific embodiment of the invention provides an aptamer/insulin conjugate complex from which insulin may be released by an innocuous, orally administrable trigger, such as quinine. | 05-10-2012 |
20140038301 | SELECTIVE CAPTURE AND RELEASE OF ANALYTES - The described subject matter includes techniques and components for minimally invasive, selective capture and release of analytes. An aptamer is selected for its binding affinity with a particular analyte(s). The aptamer is functionalized on a solid phase, for example, microbeads, polymer monolith, microfabricated solid phase, etc. The analyte is allowed to bind to the aptamer, for example, in a microchamber. Once the analyte has been bound, a temperature control sets the temperature to an appropriate temperature at which the captured analyte is released. | 02-06-2014 |
20140295424 | Isolation and Enrichment of Nucleic Acids on Microchip - Techniques for isolating, enriching, and/or amplifying target DNA molecules using MEMS-based microdevices are disclosed. The techniques can be used for detecting single nucleotide polymorphism, and for isolating and enriching desired DNA molecules, such as aptamers. | 10-02-2014 |
20140296095 | Spatially Selective Release of Aptamer-Captured Cells by Temperature Mediation - Methods and systems are provided for capturing and releasing target cells. The system includes a microdevice having a microchamber including surface-patterned aptamers capable of binding with the target cells. A sample including target cells is introduced to the microchamber, where the target cells bind to the aptamers at locally regulated temperatures. The captured target cells can be selectively released when the temperature of a region is changed to a second temperature. | 10-02-2014 |
20160076021 | APTAMER METHODS AND COMPOSITIONS - Methods of selecting an aptamer that specifically binds to a target molecule complexed with a derivatization agent. Also disclosed are specific aptamers and methods of use thereof. | 03-17-2016 |
Patent application number | Description | Published |
20090067514 | METHOD OF NON-UNIFORM DOPPLER COMPENSATION FOR WIDEBAND ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED SIGNALS - Described is a method for compensation of an OFDM signal propagating through Doppler-distorted, time-varying multipath channels. The method is based on low-complexity post-FFT signal processing. Minimum mean square error combining of signals is performed for signals received at spatially-distributed receiver elements using adaptive channel estimation and phase tracking. Doppler shifts are modeled as a consequence of motion-induced time compression and dilation. The Doppler rate is assumed constant over one OFDM block but can vary between OFDM blocks. Thus a non-constant Doppler shift is accommodated by the method. Non-uniform Doppler compensation across subchannels is based on adaptive estimation and prediction of the Doppler rate. A single adaptively estimated parameter is used to track the phases of all the carriers and channel estimates are updated on a block by block basis. | 03-12-2009 |
20090129204 | Apparatus, Systems and Methods For Enhanced Multi-Carrier Based Underwater Acoustic Communications - Advantageous OFDM-based underwater acoustic (UWA) apparatus, systems and methods are provided according to the present disclosure. In general, OFDM transmissions over UWA channels encounter frequency-dependent Doppler drifts that destroy the orthogonality among OFDM subcarriers. The disclosed apparatus, systems, and methods use a two-step approach to mitigate frequency-dependent Doppler drifts for zero-padded OFDM transmissions over fast-varying channels: (1) non-uniform Doppler compensation via resampling to convert a “wideband” problem into a “narrowband” problem; and (2) high-resolution uniform compensation on the residual Doppler. The disclosed apparatus, systems and methods are based on block-by-block processing and do not rely on channel dependence across OFDM blocks. Thus, the disclosed apparatus, systems and methods are advantageously applicable for fast-varying UWA channels. | 05-21-2009 |
20100054164 | Random Linear Network Coding for Time Division Duplexing - A new random linear network coding scheme for reliable communications for time division duplexing channels is proposed. The setup assumes a packet erasure channel and that nodes cannot transmit and receive information simultaneously. The sender transmits coded data packets back-to-back before stopping to wait for the receiver to acknowledge (ACK) the number of degrees of freedom, if any, that are required to decode correctly the information. Provided herein is an analysis of this problem to show that there is an optimal number of coded data packets, in terms of mean completion time, to be sent before stopping to listen. This number depends on the latency, probabilities of packet erasure and ACK erasure, and the number of degrees of freedom that the receiver requires to decode the data. This scheme is optimal in terms of the mean time to complete the transmission of a fixed number of data packets. It is shown that its performance is very close to that of a full-duplex system, while transmitting a different number of coded packets can cause large degradation in performance, especially if latency is high. Also described herein is the throughput performance of the novel system and technique along with a comparison to existing half-duplex Go-back-N and Selective Repeat ARQ schemes. Numerical results, obtained for different latencies, show that the novel system and technique described herein has similar performance to the Selective Repeat in most cases and considerable performance gain when latency and packet error probability is high. | 03-04-2010 |
20120236763 | Random Linear Network Coding for Time Division Duplexing - Subject matter disclosed herein relates to random linear network coding schemes for reliable communications for time division duplexing channels. In at least one embodiment, a transmitter node transmits M data packets through a half-duplex link using random linear network coding. The transmitter node transmits coded packets back-to-back through the link before stopping to wait for an acknowledgement (ACK) packet. An optimal number of coded packets N | 09-20-2012 |
Patent application number | Description | Published |
20110184999 | Linear Transformation Circuit - A first device includes a linear transformation circuit to implement multiplication by a matrix D. The linear transformation circuit as an input to receive a vector having N digital values and an output to output N first output signals. The linear transformation circuit optionally includes a sign-adjustment circuit to adjust signs of a subset including at least M of the N first output signals in accordance with a set of coefficients H. The linear transformation circuit includes a digital-to-analog conversion (DAC) circuit coupled to the output of the sign-adjustment circuit. Outputs from the DAC circuit are summed to produce an output. | 07-28-2011 |
20140161166 | Margin Test Methods and Circuits - Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns, and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing. | 06-12-2014 |
20140331112 | Margin Test Methods and Circuits - Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns, and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing. | 11-06-2014 |
20150222303 | HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS - A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level. | 08-06-2015 |
20150341128 | Margin Test Methods and Circuits - Described are methods and circuits for margin testing digital receivers. These methods and circuits prevent margins from collapsing in response to erroneously received data, and can thus be used in receivers that employ historical data to reduce intersymbol interference (ISI). Some embodiments detect receive errors for input data streams of unknown patterns, and can thus be used for in-system margin testing. Such systems can be adapted to dynamically alter system parameters during device operation to maintain adequate margins despite fluctuations in the system noise environment due to e.g. temperature and supply-voltage changes. Also described are methods of plotting and interpreting filtered and unfiltered error data generated by the disclosed methods and circuits. Some embodiments filter error data to facilitate pattern-specific margin testing. | 11-26-2015 |
Patent application number | Description | Published |
20090067537 | Adjustable Dual-Band Link - A communication system utilizing an adjustable link has at least a first data transmission circuit including at least a first communication link circuit. The first communication link circuit has a baseband circuit and at least a passband circuit. The baseband circuit corresponds to a baseband sub-channel and the passband circuit corresponds to a passband sub-channel. The first communication link circuit also includes a circuit that distributes a first subset of a data stream having a first symbol rate to the baseband circuit and a second subset of the data stream having a second symbol rate to the passband circuit. The baseband sub-channel and the passband sub-channel are separated by an adjacent guardband of frequencies. The passband carrier frequency is adjusted to define the guardband and the guardband corresponds to a first notch in a channel response of a first communications channel. | 03-12-2009 |
20090279637 | Bit-Error Rate in Fixed Line-Rate Systems - A method of reducing bit-error rate is described. The method includes transmitting a data stream of data words at a line rate that is adjustable and equal to a positive delta value added to an established data rate. The method includes accumulating available time slots in the transmitted data stream, and selectively retransmitting a subset of the data words such that the retransmitted data words occupy no more than the accumulated available time slots. | 11-12-2009 |
20100020898 | Adjustable Dual-Band Link - A communication system utilizing an adjustable link has at least a first data transmission circuit including at least a first communication link circuit. The first communication link circuit has a baseband circuit and at least a passband circuit. The baseband circuit corresponds to a baseband sub-channel and the passband circuit corresponds to a passband sub-channel. The first communication link circuit also includes a circuit that distributes a first subset of a data stream having a first symbol rate to the baseband circuit and a second subset of the data stream having a second symbol rate to the passband circuit. The baseband sub-channel and the passband sub-channel are separated by an adjacent guardband of frequencies. The passband carrier frequency is adjusted to define the guardband and the guardband corresponds to a first notch in a channel response of a first communications channel. | 01-28-2010 |
20110033007 | MULTI-BAND, MULTI-DROP CHIP TO CHIP SIGNALING - A system comprising: a first integrated circuit device having a multi-band transmission circuit; second and third integrated circuit devices having respective multi-band reception circuits; and a signaling link including a first stub coupled to the multi-band transmission circuit to receive a multi-band signal therefrom, second and third stubs coupled to the multi-band reception circuits of the second and third integrated circuit devices, respectively, to deliver the multi-band signal thereto, and a plurality of channel segments that extend between the first, second and third stubs to convey the multi-band transmission signal therebetween, and wherein at least one of a physical length, impedance or propagation constant of at least one of the first stub, second stub, third stub or channel segment of the plurality of channel segments is selected to spectrally position a frequency-interval exhibiting attenuated frequency response on the signaling link such that multiple passbands separated by the frequency-interval are established to enable conveyance of the multi-band transmission signal on the signaling link. | 02-10-2011 |
20110150051 | Multi-Tone System with Oversampled Precoders - A multi-tone system includes a data transmission circuit with an interface for receiving a data stream for transmission, a data steam splitter that splits the data stream to produce multiple substreams and a plurality of parallel data preparation circuits. Each data preparation circuit prepares a respective substream for transmission and generates a respective sub-channel signal. At least a first data preparation circuit of the plurality of parallel data preparation circuits includes a first analog filter for filtering a first substream. The first analog filter operates at a sample rate greater than the respective symbol rate of the first substream. The first analog filter provides pre-emphasis of the respective sub-channel signal and attenuation of signals outside of a respective band of frequencies corresponding to the respective sub-channel signal. The data transmission circuit also includes a combiner for combining respective sub-channel signals to generate a data transmission signal. | 06-23-2011 |
20130128944 | Selectable-tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 05-23-2013 |
20130272359 | HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS - A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level. | 10-17-2013 |
20130272446 | HIGH SPEED SIGNALING SYSTEM WITH ADAPTIVE TRANSMIT PRE-EMPHASIS - A high-speed signaling system with adaptive transmit pre-emphasis. A transmit circuit has a plurality of output drivers to output a first signal onto a signal path. A receive circuit is coupled to receive the first signal via the signal path and configured to generate an indication of whether the first signal exceeds a threshold level. A first threshold control circuit is coupled to receive the indication from the receive circuit and configured to adjust the threshold level according to whether the first signal exceeds the threshold level. A drive strength control circuit is coupled to receive the indication from the receive circuit and configured to adjust a drive strength of at least one output driver of the plurality of output drivers according to whether the first signal exceeds the threshold level. | 10-17-2013 |
20150180646 | Selectable-tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 06-25-2015 |
20150319016 | PARTIAL RESPONSE RECEIVER - A signaling system is described. The signaling system comprises a transmit device, a receive device including a partial response receive circuit, and a signaling path coupling the transmit device and the receive device. The receive device observes an equalized signal from the signaling path, and includes circuitry to use feedback from the most recent previously resolved symbol to sample a currently incoming symbol. The transmit device equalizes transmit data to transmit the equalized signal, by applying weighting based on one or more data values not associated with the most recent previously resolved symbol value. | 11-05-2015 |
20160036605 | Selectable-tap Equalizer - A signaling circuit having a selectable-tap equalizer. The signaling circuit includes a buffer, a select circuit and an equalizing circuit. The buffer is used to store a plurality of data values that correspond to data signals transmitted on a signaling path during a first time interval. The select circuit is coupled to the buffer to select a subset of data values from the plurality of data values according to a select value. The equalizing circuit is coupled to receive the subset of data values from the select circuit and is adapted to adjust, according to the subset of data values, a signal level that corresponds to a data signal transmitted on the signaling path during a second time interval. | 02-04-2016 |
Patent application number | Description | Published |
20150124907 | Hardware-Efficient Signal-Component Separator For Outphasing Power Amplifiers - Described herein is a fixed-point piece-wise linear (FP PWL) approximation technique for computations of nonlinear functions. The technique results in circuit designs having relatively few and simple arithmetic operations, short arithmetic operands and small-sized look-up tables and the circuits resultant there from can be efficiently pipelined to run at multi-GSamples/s throughputs. In one exemplary embodiment, the FP PWL approximation technique was used in the design of an energy-efficient high-throughput and high-precision signal component separator (SCS) for use with in an asymmetric-multilevel-outphasing (AMO) power amplifier. The FP PWL approximation technique is appropriate for use in any application requiring high-throughput, area and power constrained hardware implementations of nonlinear functions. | 05-07-2015 |
20150311982 | DEVICES AND TECHNIQUES FOR INTEGRATED OPTICAL DATA COMMUNICATION - Devices and techniques for integrated optical data communication. An optical receiver may include a photodetector and a differential amplifier. The photodetector is coupled to an optical waveguide. The optical waveguide is configured to provide an optical signal encoding data. A first terminal of the differential amplifier is coupled to receive a photodetection signal from the photodetector. A second terminal of the differential amplifier is coupled to receive, from a noise measurement unit, a reference signal representing a noise component of the photodetection signal. The differential amplifier is configured to provide an amplifier signal encoding at least some of the data. | 10-29-2015 |
20150357975 | Hardware-Efficient Compensator For Outphasing Power Amplifiers - Digital compensators for use in outphasing-based power amplification systems (e.g., Linear Amplification using Nonlinear Components (LINC) amplifiers and Asymmetric Multilevel Outphasing (AMO) amplifiers) include a short memory nonlinear portion and a long memory linear time invariant (LTI) portion. In various embodiments, compensators are provided that are of relatively low complexity and that are capable of operation at throughputs exceeding a Gigasample per second. | 12-10-2015 |