| Patent application number | Description | Published |
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| 20100098197 | METHOD AND APPARATUS FOR DETECTION AND CANCELLATION OF SINGLE-TONE OR MULTI-TONE INTERFERENCE IN COMMUNICATION SYSTEMS - A method and system for canceling an interference signal are provided. In the method, a received signal is transformed from a time domain to a frequency domain at relative low precision to obtain an estimated frequency and an estimated amplitude of the interference signal. A reference signal is generated using the estimated frequency and the estimated amplitude. An error signal is generated using the received signal and the reference signal based on minimum correlation criteria. The reference signal is adjusted using the error signal based on an adaptive algorithm. The reference signal is subtracted from the received signal to obtain the useful signal. | 04-22-2010 |
| 20110026570 | METHOD AND APPARATUS FOR MEASURING AND CORRECTING RECEIVER PARAMETERS - A method and apparatus for measuring parameters of a receiver having a mixer for generating an I signal and a Q signal using an input signal, an I channel circuit for processing the I signal, and a Q channel circuit for processing the Q signal. The method includes feeding the receiver a first testing signal before the mixer. The method includes feeding the receiver a second testing signal on the I channel circuit. The method includes feeding the receiver a third testing signal on the Q channel circuit. The method includes measuring I/Q quadrature deviation and I/Q delay imbalance of the receiver using the first, the second, and the third testing signals. This separates the I/Q quadrature deviation and I/Q delay imbalance. | 02-03-2011 |
| 20110179099 | DATA RATE CONVERSION DEVICE AND METHOD - Data rate conversion devices and methods are provided. A method for converting a first digital signal having a first sampling rate into a second digital signal having a sampling rate close to a predetermined second sampling rate comprises the following operations: when the ratio of the first sampling rate to the second sampling rate is a repeating infinite decimal, calculate at least two calibrating coefficient values and output the calibrating coefficient values according to a predetermined rule; conduct overflow operation on the output calibrating coefficient; and interpolate the first digital signal using the output calibrating coefficient and the result of the overflow operation to obtain the second digital signal such that during any period of a certain length along time axis, sampling times of the second digital signal equals to sampling times of the second sampling rate. | 07-21-2011 |
| 20110305306 | BLIND ADAPTIVE FILTER FOR NARROWBAND INTERFERENCE CANCELLATION - The present invention relates to a blind adaptive filter for narrowband interference cancellation, which includes an adaptive filter, a delay unit coupled to the adaptive filter for generating a delayed signal with a predetermined delay length from the output signal of the adaptive filter, and an error calculation unit coupled to the adaptive filter and the delay unit. The error calculation unit compares the output signal from the adaptive filter and the delayed signal from the delay unit to extract error information, and feedback the first error information to the adaptive filter. The first error information is formed of a transfer function including a number of coefficients, and used to adjust the adaptive filter and remove interference in the next input signal. The disclosed technique is also applicable in wideband receivers, as well as resisting multiple strong narrowband interferences having a frequency sweep rate of tens of milliseconds. | 12-15-2011 |
| Patent application number | Description | Published |
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| 20080263004 | Method and apparatus for helping user form structured diagram from unstructured information source - The present invention provides a method and apparatus for helping a user form a structured diagram from an unstructured information source. Starting with one or more key information elements such as some special words, the requests of a customer contained in the information source can be obtained by performing interactive and iterative searching in the unstructured information source such as text, audio, video and etc., the artifacts representing them are drawn in the diagram, and linkages are established between the artifacts and the corresponding contents in the information source. The present invention also proposes that the distribution of established linkages can be used to check whether all the requests in the information source have been extracted in the diagram. Further, various levels of warnings can be shown according to the density of linkage distribution. Therefore the user can draw a structured diagram more conveniently and quickly, and can perform checking and reusing more easily. | 10-23-2008 |
| 20090094216 | DATABASE QUERY LANGUAGE TRANSFORMATION METHOD, TRANSFORMATION APPARATUS AND DATABASE QUERY SYSTEM - The present invention provides a method for transforming a concept-based query into SQL query statements, comprising the steps of: transforming inputted concept-based queries into logic rules; checking validity of the logic rules; optimizing the valid logic rules; and translating the logic rules into SQL query statements in accordance with the optimization result. The present invention further provides corresponding transformation engine, database query system and computer program product. The present invention facilitates people to use more descriptive query language to query data stored in relational database. Furthermore, the present invention can automatically generate the correct and efficient SQL query statements so that people's efforts to deal with complex data model are saved significantly. | 04-09-2009 |
| 20090281837 | METHOD AND SYSTEM FOR AUTOMATICALLY EVALUATING THE QUALITY OF MEDICAL RECORDS - A method, a system, and a computer readable article of manufacture tangibly embodying computer readable instructions for executing a computer implemented method for automatically evaluating the quality of a medical record. The method includes: generating temporary facts from a medical record to be evaluated; constructing a query to a knowledge base of standard facts of standard medical records from the temporary facts; executing the query to the knowledge base by using a reasoning engine; and determining the quality of a medical record to be evaluated based on the result of the query. | 11-12-2009 |
| 20090287670 | METHOD AND SYSTEM FOR CONSTRUCTING XML QUERY TO SCHEMA VARIABLE XML DOCUMENTS - An XML querying method and system for constructing an XQuery/XPath query to a schema variable XML document. The method includes: receiving the query from a client computer; generating a tree structure; and generating, by query rewriting, an XQuery/XPath for the XML document based on the tree structure and configurable query constraints. The system includes: a tree structure generating unit for generating a tree structure; and a query writing unit for generating an XQuery/XPath query for the XML document based on the tree structure and configurable query constraints. | 11-19-2009 |
| 20100250577 | TRANSLATION SYSTEM AND METHOD FOR SPARQL QUERIES - A computer-implemented system and method for translating a SPARQL query. The system includes: a parser/lexer for parsing the SPARQL query; a hidden negative pattern detector for detecting a hidden negative pattern in the parsed SPARQL query; a hidden negative pattern translator for translating the detected hidden negative pattern into an explicit negative pattern; a separator for separating the explicit negative pattern from a positive pattern in the parsed SPARQL query; a negative pattern translator for translating the explicit negative pattern into a negative portion of an SQL statement; a positive pattern translator for translating the positive pattern into a positive portion of the SQL statement; and an SQL statement combiner for combining the negative portion of the SQL statement with the positive portion of the SQL statement. | 09-30-2010 |
| 20110022798 | METHOD AND SYSTEM FOR CACHING TERMINOLOGY DATA - A method for caching terminology data, including steps of: receiving a terminology request; determining that the terminology request is related to at least one uncached terminology concept; retrieving a complete concept set of the terminology concept as a cache unit, wherein the complete concept set includes the terminology concept, all other terminology concepts which are directly correlated or indirectly correlated through a non-transitive relationship to the terminology concept, properties of each terminology concept, and the non-transitive relationship between each terminology concept; retrieving transitive relationship information for the complete concept set, the transitive relationship information at least including identifiers of terminology concepts which are correlated through the transitive relationship to each terminology concept in the complete concept set; and caching the cache unit and the transitive relationship information of the cache unit. A corresponding device caches terminology data. | 01-27-2011 |
| 20110258231 | Method and Apparatus for Providing the Information of Adverse Drug Effects - A method and apparatus for providing the information of adverse drug effects. The method includes: extracting at least a first information and a second information in basic information of a drug from a drug information source; matching the drug with a particular drug-related concept in a structured and normalized terminology system according to the first and the second information; extracting, from the drug information source, the information of Adverse Drug Effects associated with the drug; and matching the information of Adverse Drug Effects with a particular disorder-related concept in the structured and normalized terminology system; wherein the matching is along different paths in at least two disorder-related classified hierarchies. The invention can extract, standardize, and normalize information relating to adverse drug effects to help the integration, search, calculation, and propagation thereof. | 10-20-2011 |
| 20110295595 | DOCUMENT PROCESSING, TEMPLATE GENERATION AND CONCEPT LIBRARY GENERATION METHOD AND APPARATUS - The present invention relates to document processing method and apparatus which can edit a natural language and generate a machine-processable document; a template generating method and apparatus which can be used for document processing method and apparatus; a concept library generating method and apparatus which can be used for the document processing method and apparatus and the template generating method and apparatus. The present invention provided a possibility for semantic interaction of documents in different systems and enhances efficiency. | 12-01-2011 |
