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Han, US

Bingsong Han, North Haven, CT US

Patent application numberDescriptionPublished
20090023737Imidazo-Pyridazines, Triazolo-Pyridazines and Related Benzodiazepine Receptor Ligands - Compounds of the Formula:01-22-2009
20110082130PIPERAZINYL OXOALKYL TETRAHYDROISOQUINOLINES AND RELATED ANALOGUES - Piperazinyl oxoalkyl tetrahydroisoquinolines and related analogues of the Formula:04-07-2011

Patent applications by Bingsong Han, North Haven, CT US

Bomie Han, Carmel, IN US

Patent application numberDescriptionPublished
20080299126Anti-Myostatin Antibodies - A neutralizing epitope is identified within amino acids 40-64 of the mature form of human myostatin. Antibodies that bind this epitope with high affinity preferentially bind GDF-8 over GDF-11 and may be chimeric, humanized or fully human antibodies, immunoconjugates of the antibodies or antigen-binding fragments thereof. The antibodies of the invention are useful for increasing muscle mass, increasing bone density, or for the treatment of various disorders in mammalian and avian species.12-04-2008
20100087631ANTI-MYOSTATIN ANTIBODIES - A neutralizing epitope is identified within amino acids 40-64 of the mature form of human myostatin. Antibodies that bind this epitope with high affinity preferentially bind GDF-8 over GDF-11 and may he chimeric, humanized or fully human antibodies, immunoconjugates of the antibodies or antigen-binding fragments thereof. The antibodies of the invention are useful for increasing muscle mass, increasing hone density, or for the treatment of various disorders in mammalian and avian species.04-08-2010

Patent applications by Bomie Han, Carmel, IN US

Byung Han, St. Louis, MO US

Patent application numberDescriptionPublished
20120035359PHENOXAZINE DERIVATIVES AND METHODS OF USE THEREOF - The present invention encompasses phenoxazine derivatives and methods of use thereof.02-09-2012

Dongmel Han US

Patent application numberDescriptionPublished
20100130481ANTICONVULSANT AND ANXIOLYTIC METHODS OF USING RECEPTOR SUBTYPE SELECTIVE AGENTS - Methods of using orally active benzodiazepine derivatives and their salts are disclosed. These compounds and their salts have anticonvulsant and anxiolytic activity with reduced sedative, hypnotic, muscle relaxant, or ataxic effects.05-27-2010

Dong P. Han, Ames, IA US

Patent application numberDescriptionPublished
20110064760POLYPEPTIDES COMPRISING EPITOPES OF HIV GP41 AND METHODS OF USE - An isolated polypeptide that has an amino acid sequence that is substantially homologous to consecutive amino acids of a c-terminal portion of the membrane proximal external region (MPER) of gp41 includes an immunogenic epitope reactive with at least one anti-HIV antibody.03-17-2011

Eui-Hong Han, Woodbury, MN US

Patent application numberDescriptionPublished
20100161385Method and System for Content Based Demographics Prediction for Websites - Systems and methods for predicting characteristics of a web user, determining a combination of websites to obtain a target demographic mix, determining a set of keywords to buy to obtain a target demographic mix, selecting websites from market research and designing websites to appeal to an audience with desired demographic characteristics. Systems and methods may include determining features of web-pages of ad-carrying, target websites, applying prediction models to the determined features of the ad-carrying, target websites to predict values of demographic attributes of the ad-carrying, target websites, receiving one or more inputs including a target demographic mix, receiving a number that indicates an amount of visitors of the ad-carrying, target websites, and determining a combination of websites that provide target demographic mix based on the predicted values of the demographic attributes and number of visitors of the ad-carrying, target websites.06-24-2010
20100223215SYSTEMS AND METHODS OF MAKING CONTENT-BASED DEMOGRAPHICS PREDICTIONS FOR WEBSITES - Systems and methods for making demographic predictions for websites and web-pages. Embodiments include a system and a method of making demographic predictions for websites. The system and method select one or more websites with known demographic attributes for use as training websites, obtain demographic attributes data of the training websites, determine first features of web-pages of the training websites and develop a prediction model using the determined first features and the obtained demographic attributes data. The prediction model predicts one or more values for a target demographic attribute. The system and method determine second features of web-pages of a target website and apply the prediction model to the determined second features of the target website to predict one or more values for the target demographic attribute of the target website.09-02-2010

Eungnak Han, Madison, WI US

Patent application numberDescriptionPublished
20100124629PHOTOPATTERNABLE IMAGING LAYERS FOR CONTROLLING BLOCK COPOLYMER MICRODOMAIN ORIENTATION - The present invention provides structures including a substrate, a crosslinked polymer film disposed over the substrate, and a patterned diblock copolymer film disposed over the crosslinked polymer film. The crosslinked polymer comprises a random copolymer polymerized from a first monomer, a second monomer, and a photo-crosslinkable and/or thermally crosslinkable third monomer, including epoxy-functional or acrylyol-functional monomers. Also disclosed are methods for forming the structures.05-20-2010
20110014420PHOTOPATTERNABLE IMAGING LAYERS FOR CONTROLLING BLOCK COPOLYMER MICRODOMAIN ORIENTATION - The present invention provides structures including a substrate, a crosslinked polymer film disposed over the substrate, and a patterned diblock copolymer film disposed over the crosslinked polymer film. The crosslinked polymer comprises a random copolymer polymerized from a first monomer, a second monomer, and a photo-crosslinkable and/or thermally crosslinkable third monomer, including epoxy-functional or acrylyol-functional monomers. Also disclosed are methods for forming the structures. 01-20-2011

Gilsoo Han, Salt Lake City, UT US

Patent application numberDescriptionPublished
20100035746Methods for Making Carbide-Metal Nanocomposite Powders - This chemical vapor synthesis process was designed so that a metal carbide precursor and a secondary metal precursor are separately or together fed into each evaporator in a reactor by specially designed precursor feeders, either simultaneously or sequentially. The reduction and carburization of the vaporized precursors by gaseous mixtures produces carbide-metal nanocomposite powders. The product can be a very uniform mixture of the constituent powders or a uniform agglomerate, which is important to ensure a high quality of bulk cemented metal carbide product after consolidation and sintering. These nanocomposite powders can be readily characterized using XRD, carbon analyzer and TEM.02-11-2010

Jeong-Nam Han US

Patent application numberDescriptionPublished
20120080059ETCHING, CLEANING AND DRYING METHODS USING SUPERCRITICAL FLUID AND CHAMBER SYSTEMS USING THESE METHODS - Provided herein are etching, cleaning and drying methods using a supercritical fluid, and a chamber system for conducting the same. The etching method includes etching the material layer using a supercritical carbon dioxide in which an etching chemical is dissolved, and removing an etching by-product created from a reaction between the material layer and the etching chemical using a supercritical carbon dioxide in which a cleaning chemical is dissolved. Methods of manufacturing a semiconductor device are also provided.04-05-2012
20120085495ETCHING, CLEANING AND DRYING METHODS USING SUPERCRITICAL FLUID AND CHAMBER SYSTEMS USING THESE METHODS - Provided herein are etching, cleaning and drying methods using a supercritical fluid, and a chamber system for conducting the same. The etching method includes etching the material layer using a supercritical carbon dioxide in which an etching chemical is dissolved, and removing an etching by-product created from a reaction between the material layer and the etching chemical using a supercritical carbon dioxide in which a cleaning chemical is dissolved. Methods of manufacturing a semiconductor device are also provided.04-12-2012

Jie Han, Bloomington, IN US

Patent application numberDescriptionPublished
20110245164YL-BASED INSULIN-LIKE GROWTH FACTORS EXHIBITING HIGH ACTIVITY AT THE INSULIN RECEPTOR - Insulin-like growth factor analogs are disclosed wherein substitution of the IGF native amino acids, at positions corresponding to positions B16 and B17 of native insulin, with tyrosine and leucine, respectively, increases potency of the resulting analog at the insulin receptor by tenfold. Also disclosed are prodrug and depot formulations of the IGF analogs, wherein the IGF analog has been modified by the linkage of a dipeptide to the analog through an amide bond linkage. The prodrug and depot formulations disclosed herein have extended half lives of at least 2 hours, 10 hours, and more typically greater than 2 are converted to the active form at physiological conditions through a non-enzymatic reaction driven by chemical instability.10-06-2011
20110257091INSULIN ANALOGS - Full potency analogs of insulin are provided wherein the analog comprises a modification of the tyrosine residue at position 19 of the A chain.10-20-2011

Jixiong Han, Woodbury, MN US

Patent application numberDescriptionPublished
20090274932Sputtered metal film recording medium including texture promotion layer - A sputtered metal film recording medium includes a substrate, a texture promotion layer sputtered on a first side of the substrate, a seed layer deposited on the texture promotion layer, an intermediate layer including a chromium alloy deposited on the seed layer, and a longitudinal magnetic recording layer including a cobalt alloy deposited on the intermediate layer. The texture promotion layer configures in-plane orientation of a cobalt structure in the magnetic recording layer.11-05-2009

Kai Han, Blacksburg, VA US

Patent application numberDescriptionPublished
20090150699SLEEP SCHEDULING METHOD BASED ON MOVING DIRECTIONS OF TARGET IN SENSOR NETWORK - Provided is a sleep scheduling method based on directions of a target in a sensor network. A track subregion is set as an oval shape that is in proportion to a probability of the target moving in certain directions so as to track the target, and sleep patterns of sensor nodes in the tracking subregion are scheduled in consideration of a probability of the target moving in certain directions. As such, the energy efficiency of each sensor node in the sensor network can be improved.06-11-2009

Liangfeng Han, Baltimore, MD US

Patent application numberDescriptionPublished
20100240574Heyl as a Therapeutic Target and a Diagnostic Marker for Neoplasia and Uses Therefor - The invention generally features compositions and methods that are useful for treating or diagnosing a neoplasia, in particular breast neoplasia. The invention is based in part on the observation that the basic helix loop helix transcription factor HEYL was found to be overexpressed in breast cancer cells. Accordingly, the invention provides therapeutic compositions and methods for altering the levels and expression of HEYL of the invention, thereby treating a neoplasia, as well as compositions and methods for diagnosing a neoplasia.09-23-2010

Lushan Han, Baltimore, MD US

Patent application numberDescriptionPublished
20110078205METHOD AND SYSTEM FOR FINDING APPROPRIATE SEMANTIC WEB ONTOLOGY TERMS FROM WORDS - A system and method to map a set of words to a set of ontology terms, the method including determining a starting point for ontologies including terms matching a set of words, determining a term set corresponding to the set of words in an ontology context of each of the starting points, ranking the term sets determined for all of the starting points, and providing an output of the term sets in a ranked order.03-31-2011

Qingyou Han, West Lafayette, IN US

Patent application numberDescriptionPublished
20120115708METHOD OF PRODUCING PARTICULATE-REINFORCED COMPOSITES AND COMPOSITES PRODUCED THEREBY - A process for producing particle-reinforced composite materials through utilization of an in situ reaction to produce a uniform dispersion of a fine particulate reinforcement phase. The process includes forming a melt of a first material, and then introducing particles of a second material into the melt and subjecting the melt to high-intensity acoustic vibration. A chemical reaction initiates between the first and second materials to produce reaction products in the melt. The reaction products comprise a solid particulate phase, and the high-intensity acoustic vibration fragments and/or separates the reaction products into solid particles that are dispersed in the melt and are smaller than the particles of the second material. Also encompassed are particle-reinforced composite materials produced by such a process.05-10-2012

Qingyou Han, Knoxville, TN US

Patent application numberDescriptionPublished
20090126897METHOD AND APPARATUS FOR SEMI-SOLID MATERIAL PROCESSING - A method of forming a material includes the steps of: vibrating a molten material at an ultrasonic frequency while cooling the material to a semi-solid state to form non-dendritic grains therein; forming the semi-solid material into a desired shape; and cooling the material to a solid state. The method makes semi-solid castings directly from molten materials (usually a metal), produces grain size usually in the range of smaller than 50 μm, and can be easily retrofitted into existing conventional forming machine.05-21-2009

Patent applications by Qingyou Han, Knoxville, TN US

Samuel Sangman Han, Plymouth, MN US

Patent application numberDescriptionPublished
20100037915METHODS AND APPARATUS FOR MINIMIZING AIRBORNE DUST IN FLOOR MAINTENANCE MACHINES - Airborne dust is controlled and minimized by spraying a fine spray mist by nozzles (02-18-2010

Sang M. Han, Albuquerque, NM US

Patent application numberDescriptionPublished
20080251382SEPARATION AND EXTREME SIZE-FOCUSING OF NANOPARTICLES THROUGH NANOCHANNELS BASED ON CONTROLLED ELECTROLYTIC PH MANIPULATION - Accordance to various embodiments, there are methods of separating molecules, devices, and method of making the devices. The method of separating molecules can include providing a nanofluidic device including a plurality of nanochannels on a top surface of a substrate, wherein each of the plurality of nanochannels has a first end and a second end and extends from the top surface into the substrate. The nanofluidic device can also include a dielectric layer disposed over each of the plurality of nanochannels, an inlet at the first end of the plurality of nanochannnels, an outlet at the second end of the plurality of nanochannels, and an optically transparent cover disposed over the plurality of nanochannels to form a seal. The method of separating molecules can further include providing a solution in the plurality of nanochannels through the inlet and creating a longitudinal pH gradient along each of the plurality of nanochannels.10-16-2008
20110192724HIGH RESOLUTION FOCUSING AND SEPARATION OF PROTEINS IN NANOFLUIDIC CHANNELS - Exemplary embodiments provide systems and methods for concentrating, focusing and/or separating proteins using nanofluidic channels and/or their arrays. In embodiments, low-abundance proteins can be focused and separated with high resolution using separation techniques including isoelectric focusing (IEF), and/or dynamic field gradient focusing (DFGF) in combination with nanofluidic channels and/or multi-gate nanofluidic field-effect-transistors (FETs).08-11-2011

Patent applications by Sang M. Han, Albuquerque, NM US

Sheng-Cheng Han, Charlottesville, VA US

Patent application numberDescriptionPublished
20110047660COMPOSITIONS AND RELATED METHODS FOR MODULATING ALKALOID PRODUCTION BY CONTROLLING PMT PROMOTER ACTIVATION MEDIATED BY TRANSCRIPTIONAL FACTORS ERF AND MYC - Compositions and methods for modifying the production levels of alkaloids in plants are provided. Alkaloid production can be genetically controlled by modulating the transcriptional activation of PMT genes mediated by members of the ERF family and/or Myc family of transcription factors. Novel nucleotide sequences encoding the Myc family of transciption factors are also provided.02-24-2011

Sherwin Han, Portsmouth, RI US

Patent application numberDescriptionPublished
20120066282Whole 1 number method of integer factorization - Disclosed is a method for factoring integers by squaring computation time. The present invention uses binary numbers to process invert function of multiplication as factorization. Inverse method of integer factorization uses a diamond expansion form to arrange the digit positions of 1-numbers and 0-numbers subtracted from the product number P and its complement number No. The complement number N03-15-2012

Shufeng Han, Johnston, IA US

Patent application numberDescriptionPublished
20090157259SYSTEM AND METHOD FOR PROVIDING GUIDANCE TOWARDS A FAR-POINT POSITION FOR A VEHICLE IMPLEMENTING A SATELLITE-BASED GUIDANCE SYSTEM - The present invention is a method for providing guidance towards a far-point position for a vehicle implementing a satellite-based guidance system. The method 06-18-2009
20090292412Vehicular Guidance System Having Compensation for Variations in Ground Elevation - A system and method of guiding a vehicle comprises establishing elevation data and corresponding location data for a work area. A particular location of a vehicle within the work area is determined. Roll data and pitch data are estimated corresponding to the particular location. The vehicle is guided based upon the estimated roll data and the pitch data such that the vehicle follows a desired path.11-26-2009

Patent applications by Shufeng Han, Johnston, IA US

Shufeng Han, Urbandale, IA US

Patent application numberDescriptionPublished
20120101695SYSTEM FOR VEHICULAR GUIDANCE WITH RESPECT TO HARVESTED CROP - A discriminator identifies windrow pixels associated with a windrow within a collected image. A definer defines a search space with respect to a vehicle. An evaluator determines respective spatial correlations between the defined search space and the windrow pixels for different angular displacements of the search space. An alignment detector or search engine determining a desired vehicular heading as a preferential angular displacement associated with a generally maximum spatial correlation between the defined search space and the windrow pixels. An offset calculator estimates an offset of the vehicle to a central point of the windrow or a depth axis to achieve the desired vehicle heading and desired position of the vehicle with respect to the windrow.04-26-2012

Sung-Wook Han US

Patent application numberDescriptionPublished
20110142019Seamless Mobility in Wireless Networks - AP's associated with a communication network and any wireless devices desiring contact, operated according to a protocol in which each wireless device selects AP's with which to communicate. A system coordinator causes the AP's to operate so as to guide each wireless device to an AP selected by the system coordinator. This has the effect that, notwithstanding that the protocol involves having the wireless device make the selection of AP, functionally, the AP's make the selection for it. In a 1st technique, multiple AP's share an identifier, with the system coordinator directing one particular AP to respond to the wireless device, thus appearing to wireless devices as a “personal cell”. In a 2nd technique, AP's each maintain identifiers substantially unique to each wireless device, with the system coordinator directing only one particular AP to maintain any particular wireless device's identifier, thus appearing to wireless devices as a “personal AP”.06-16-2011

Xianlin Han, Clayton, MO US

Patent application numberDescriptionPublished
20090029473LIPID PROFILE AS A BIOMARKER FOR EARLY DETECTION OF NEUROLOGICAL DISORDERS - The present invention relates to compositions and methods for the early detection or monitoring of neurodegenerative diseases and neurological disorders including Alzheimer's disease. The invention provides biomarkers based on lipid profiles of biological samples and methods for using the biomarkers for the detection of neurodegenerative diseases and neurological disorders.01-29-2009
20090065687MULTIPLEXING MATRIX-ANALYTE STEREO ELECTRONIC INTERACTIONS FOR HIGH THROUGHPUT SHOTGUN METABOLOMICS - A shotgun metabolomics approach using MALDI-tandem mass spectrometry was developed for the rapid analysis of cellular metabolites. Through the use of neutral organic solvents to inactivate endogenous enzyme activities (i.e., methanol/chloroform/H03-12-2009
20090134323MULTIDIMENSIONAL MASS SPECTROMETRY OF SERUM AND CELLULAR LIPIDS DIRECTLY FROM BIOLOGIC EXTRACTS - A method for determination of at least one of the lipid species in a biological sample comprising subjecting the sample to lipid extraction to obtain a lipid extract and subjecting the resulting lipid extract to multidimensional electrospray ionization mass spectrometry using either precursor ion or neutral loss scanning (or both) of all naturally occurring aliphatic chains, lipid fragments and precursor ions leading to observed fragments to generate a multidimensional matrix whose contour densities provides structural and quantitative information directly without chromatography. A method for determination of lipid content and/or lipid molecular species composition and quantity directly from lipid extracts of a biological sample comprising subjecting said lipid extract to electrospray ionization multidimensional mass spectrometry by comparisons to standards and algorithms described herein.05-28-2009

Xiaoxia Han US

Patent application numberDescriptionPublished
20100321094METHOD AND CIRCUIT IMPLEMENTATION FOR REDUCING THE PARAMETER FLUCTUATIONS IN INTEGRATED CIRCUITS - This invention provides a method for reducing the effects of process, supply voltage and temperature variations in integrated circuits and its circuit implementation. The disclosed method builds up a detecting-feedback loop with a plurality of target MOS transistors in main circuits, an induction MOS transistor and a current-to-voltage conversion circuit, and performs a body modulation to effectively reduce the parameter fluctuations of the target MOS transistors in a sub-threshold region or a saturated region due to process, supply voltage and temperature variations. A body-modulated circuit achieves the disclosed method with only a few circuit elements, which effectively improves the stability, reliability and product yield of integrated circuits, especially sub-threshold integrated circuits, without significantly increasing the circuit complexity and power consumption.12-23-2010

Xue Han, Baltimore, MD US

Patent application numberDescriptionPublished
20100055019CALCIUM PHOSPHATE BODIES AND A PROCESS FOR MAKING CALCIUM PHOSPHATE BODIES - Among the various aspects of the present invention is a process for making calcium phosphate bodies comprising amorphous calcium phosphate, hydroxyapatite or calcium triphosphate, the bodies themselves and the use of such bodies in any of a variety of applications.03-04-2010

Yang Han US

Patent application numberDescriptionPublished
20120089883Systems and Methods for Error Correction Using Irregular Low Density Parity Check Codes - Various embodiments of the present invention provide systems and methods for generating a code format. One method discussed includes: receiving a first matrix having a row width and a column height that is greater than one; incorporating a circulant into a first column of the first matrix; testing the first column for trapping sets, wherein at least one trapping set is identified; selecting a value to mitigate the identified trapping set; and augmenting the first matrix with a second matrix to yield a composite matrix. The second matrix has the selected value in the first column, and wherein the identified trapping set is mitigated.04-12-2012

Yiding Han, Logan, UT US

Patent application numberDescriptionPublished
20110185328System and Method for Circuit Design Floorplanning - Circuit floorplanning is performed on a combination central processing unit and multiprocessor. A B*-tree data structure of a floorplan and circuit related constants reside in a central processing unit data storage. The B* tree structure of a floorplan along and said circuit related constants are copied to a multiprocessor data storage where multiple thread blocks, each consisting of a single thread, copy the tree to their own shared memories. The multiprocessor concurrently evaluates different moves in different thread blocks. The multiprocessor then evaluates objective function results and stores those results. The best result for floorplanning is selected from the multiple circuit evaluations.07-28-2011

Yingchang Han, West Lafayette, IN US

Patent application numberDescriptionPublished
20100075004Apparatus and method for reducing microorganisms on produce using chlorine dioxide gas - This invention provides an apparatus and method for processing produce to reduce microorganisms thereon by treating the produce in a treatment chamber. The treatment chamber comprises a produce receiver disposed in the treatment chamber, a means for providing a gas stream comprising chlorine dioxide and a carrier gas into the treatment chamber, a chlorine dioxide sensor in communication with the treatment chamber, and a means for controlling the concentration of chlorine dioxide in the treatment chamber. The method comprises exposing the produce to an atmosphere comprising gaseous chlorine dioxide and a carrier gas in a treatment chamber and can comprise controlling the concentration of chlorine dioxide in the treatment chamber, moving the produce in the treatment chamber during exposure to the gaseous chlorine dioxide, spraying water to remove the gaseous chlorine dioxide, and purging the treatment chamber to remove any residual chlorine dioxide.03-25-2010

Yousoo Han, Bangor, ME US

Patent application numberDescriptionPublished
20090036575THERMOPLASTIC COMPOSITES CONTAINING LIGNOCELLULOSIC MATERIALS AND METHODS OF MAKING SAME - A composite includes raw lignocellulosic materials dispersed in a thermoplastic polymeric matrix which includes a blend of different polymers. A composite includes raw lignocellulosic materials and a thermal stabilization agent dispersed in a thermoplastic polymeric matrix. A composite includes lignocellulosic nanoparticles dispersed in a thermoplastic polymeric matrix.02-05-2009
20110260348METHOD FOR DRYING CELLULOSE NANOFIBRILS - A method of producing dried cellulose nanofibrils includes atomizing an aqueous suspension of cellulose nanofibrils and introducing the atomized aqueous suspension into a drying chamber of a drying apparatus. The aqueous suspension is then dried, thereby forming substantially non-agglomerated dried cellulose nanofibrils.10-27-2011

Zenghu Han, College Park, MD US

Patent application numberDescriptionPublished
20120112121EMULSIONS OF HEAT TRANSFER FLUIDS INCLUDING NANODROPLETS TO ENHANCE THERMAL CONDUCTIVITIES OF THE FLUIDS - A heat transfer fluid emulsion includes a heat transfer fluid, and liquid droplets dispersed within the heat transfer fluid, where the liquid droplets are substantially immiscible with respect to the heat transfer fluid and have dimensions that are no greater than about 100 nanometers. In addition, the thermal conductivity of the heat transfer fluid emulsion is greater than the thermal conductivity of the heat transfer fluid.05-10-2012

Zhaozhong Han, Franklin, TN US

Patent application numberDescriptionPublished
20110213293LIGANDS TO RADIATION-INDUCED MOLECULES - A method for identifying a molecule that binds an irradiated tumor in a subject and molecules identified thereby. In some embodiments, the method includes the steps of (a) exposing a tumor to ionizing radiation; (b) administering to a subject a library of diverse molecules; and (c) isolating from the tumor one or more molecules of the library of diverse molecules, whereby a molecule that binds an irradiated tumor is identified. Also provided are targeting ligands that bind an irradiated tumor and therapeutic and diagnostic methods that employ the disclosed targeting ligands.09-01-2011

Zhu Han US

Patent application numberDescriptionPublished
20120079576Authentication Method and Apparatus - An identity authentication method is provided. The method comprises obtaining records information of a valid user, where the records information indicates behaviors having been executed by the valid user; mapping, based on an orthogonal behavior model having multiple mutually orthogonal dimensions, records information to the multiple dimensions, wherein behaviors indicated by records information mapped to different dimensions do not overlap therebetween and have no logical cause and effect relationship; sampling records information mapped to different dimensions, respectively, so as to generate an authentication questionnaire including a plurality of authentication questions; computing, responsive to answers of a client to the authentication questionnaire, a total confidence P for the client being a valid user; outputting a positive authentication result, responsive to the total confidence probability P falling into a confidence interval; and outputting a negative authentication result, responsive to the total confidence probability P failing to fall into a confidence interval. The present invention further provides a corresponding identity authentication apparatus.03-29-2012