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Gang Xu
Gang Xu, Irvine, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110054871 | Thermodynamic Process Control Based on Pseudo-density Root for Equation of State - A system for thermodynamic modeling is provided. The system comprises a computer having a processor, a thermodynamic process simulation application, and a thermodynamic equation of state application. When executed by the processor, the thermodynamic equation of state application determines a density root based on a first and second point of departure from an equation of state and based on a first and a second extrapolation equation. The first departure point satisfies the equation | 03-03-2011 |
| 20110066285 | Thermodynamic Phase Equilibrium Analysis Based on a Reduced Composition Domain - A method of modeling phase characteristics of thermodynamic systems utilizing pseudo-properties strategy and a reduced number of variables is disclosed herein. The method describes a means of determining the probability of phase splitting of mixtures of materials at a given temperature, pressure, and composition by characterizing the functions that describe the system via pseudo-properties, and also by describing the system in n−1 or fewer variables, where n represents the number of components in the system of interest. In an embodiment, a multi-component system is characterized in one variable, thereby providing simplified thermodynamic models in a time-efficient manner. In addition, the information generated by this reduced-variable calculation can further be used as a starting point for calculations of equations of state. | 03-17-2011 |
Gang Xu, Lake Worth, FL US
| Patent application number | Description | Published |
|---|---|---|
| 20100241731 | METHOD FOR VIRTUALIZING INTERNET RESOURCES AS A VIRTUAL COMPUTER - A system and method for presenting a representation of a remotely located storage resource includes: using a processor device for: receiving a first request from a user, said first request including an identification of the storage resource; authenticating the user request; virtualizing the storage resource by creating a node for presentation to the user, wherein said node represents the storage resource; presenting the node to the user; receiving a second request from the user for data stored in the storage resource represented by the node; retrieving the requested data from the storage resource; and presenting the requested data to the user on the node. | 09-23-2010 |
Gang Xu, Corona, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100223040 | SYSTEM AND METHOD FOR EFFICIENT COMPUTATION OF SIMULATED THERMODYNAMIC PROPERTY AND PHASE EQUILIBRIUM CHARACTERISTICS USING COMPREHENSIVE LOCAL PROPERTY MODELS - A method of estimating a thermophysical property of a fluid using a local model is disclosed herein. The method includes generating, for use within the local model, a series expansion of thermodynamic equations relating to the thermophysical property and one or more derivatives involving the thermophysical property. The method further includes evaluating, based upon a set of specified values of parameters of the fluid, a first order term of the series expansion and a second order term of the series expansion. The values of the first order term and the second order term are then compared. A value of the thermophysical property is then automatically updated when the values of the first order term and the second order term are found to differ by more than a predefined amount. | 09-02-2010 |
Gang Xu, Piscataway, NJ US
| Patent application number | Description | Published |
|---|---|---|
| 20100070902 | Method and System for Controlling Physical Components Via A Virtual Environment - A computer readable storage medium storing a set of instructions that are executable by a processor, the set of instructions being operable to store a virtual representation of a plurality of physical components, display the virtual representation, receive user interaction with at least one of the virtual representations and send a command to the physical component corresponding to the user interaction. | 03-18-2010 |
| 20100162378 | METHODS AND APPARATUS TO ENHANCE SECURITY IN RESIDENTIAL NETWORKS - Example methods and apparatus to enhance security in residential networks and residential gateways are disclosed. A disclosed example apparatus includes a transceiver to receive an Internet protocol (IP) packet, a first packet processing module associated with a protected IP address, the first packet processing module to be communicatively coupled to a first network device, a second packet processing module associated with a public IP address, the second packet processing module to be communicatively coupled to a second network device, and a packet diverter to route the received IP packet to the first packet processing module when the IP packet contains the protected IP address and to route the IP packet to the second packet processing module when the IP packet does not contain the protected IP address. | 06-24-2010 |
| 20110131650 | METHODS, DEVICES, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR EDGE DRIVEN COMMUNICATIONS NETWORK SECURITY MONITORING - An edge monitoring approach can be utilized to detect an attack which includes a plurality of relatively low bandwidth attacks, which are aggregated at a victim sub-network. The aggregated low bandwidth attacks can generate a relatively high bandwidth attack including un-solicited data traffic directed to the victim' so that the aggregated attack becomes more detectable at an edge monitor circuit located proximate to the victim. Related systems, devices, and computer program products are also disclosed. | 06-02-2011 |
| 20110137557 | CELLULAR-BASED LIVE TRAFFIC SERVICE - A cellular-based live traffic service that does not require pre-deployment of infrastructure or GPS-enabled devices uses signals provided by cellular devices to determine course resolution localization and tracking information of the cellular devices. Specialized statistical analysis is performed on the course resolution data to infer the fine resolution positions of the cellular devices. In an example embodiment, the localization and tracking information is provided on a map, or the like, to show relative position and/or trajectory of cellular devices. | 06-09-2011 |
Gang Xu, Allen, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100142590 | CALIBRATION IN A SPREAD SPECTRUM COMMUNICATIONS SYSTEM - A method comprising: selecting an available orthogonal spreading code from a set of orthogonal spreading codes that are used for separating overlapping radio transmissions in a spread spectrum multiple access communication system; spreading a predetermined sequence using the selected spreading code; transmitting the spread predetermined sequence as a calibrating radio transmission; detecting a calibration signal corresponding to the calibrating radio transmission; and using the detected calibration signal to modify subsequent radio transmissions within the spread spectrum multiple access communication system. | 06-10-2010 |
Gang Xu, Houston, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090016599 | SEMANTIC REPRESENTATION MODULE OF A MACHINE-LEARNING ENGINE IN A VIDEO ANALYSIS SYSTEM - A machine-learning engine is disclosed that is configured to recognize and learn behaviors, as well as to identify and distinguish between normal and abnormal behavior within a scene, by analyzing movements and/or activities (or absence of such) over time. The machine-learning engine may be configured to evaluate a sequence of primitive events and associated kinematic data generated for an object depicted in a sequence of video frames and a related vector representation. The vector representation is generated from a primitive event symbol stream and a phase space symbol stream, and the streams describe actions of the objects depicted in the sequence of video frames. | 01-15-2009 |
| 20090016600 | COGNITIVE MODEL FOR A MACHINE-LEARNING ENGINE IN A VIDEO ANALYSIS SYSTEM - A machine-learning engine is disclosed that is configured to recognize and learn behaviors, as well as to identify and distinguish between normal and abnormal behavior within a scene, by analyzing movements and/or activities (or absence of such) over time. The machine-learning engine may be configured to evaluate a sequence of primitive events and associated kinematic data generated for an object depicted in a sequence of video frames and a related vector representation. The vector representation is generated from a primitive event symbol stream and a phase space symbol stream, and the streams describe actions of the objects depicted in the sequence of video frames. | 01-15-2009 |
| 20100061624 | DETECTING ANOMALOUS EVENTS USING A LONG-TERM MEMORY IN A VIDEO ANALYSIS SYSTEM - Techniques are described for detecting anomalous events using a long-term memory in a video analysis system. The long-term memory may be used to store and retrieve information learned while a video analysis system observes a stream of video frames depicting a given scene. Further, the long-term memory may be configured to detect the occurrence of anomalous events, relative to observations of other events that have occurred in the scene over time. A distance measure may used to determine a distance between an active percept (encoding an observed event depicted in the stream of video frames) and a retrieved percept (encoding a memory of previously observed events in the long-term memory). If the distance exceeds a specified threshold, the long-term memory may publish the occurrence of an anomalous event for review by users of the system. | 03-11-2010 |
| 20100063949 | LONG-TERM MEMORY IN A VIDEO ANALYSIS SYSTEM - A long-term memory used to store and retrieve information learned while a video analysis system observes a stream of video frames is disclosed. The long-term memory provides a memory with a capacity that grows in size gracefully, as events are observed over time. Additionally, the long-term memory may encode events, represented by sub-graphs of a neural network. Further, rather than predefining a number of patterns recognized and manipulated by the long-term memory, embodiments of the invention provide a long-term memory where the size of a feature dimension (used to determine the similarity between different observed events) may grow dynamically as necessary, depending on the actual events observed in a sequence of video frames. | 03-11-2010 |
Gang Xu, Shanghai CN
| Patent application number | Description | Published |
|---|---|---|
| 20090063081 | BRIDGE SENSOR CALIBRATION - An integrated circuit chip for calibrating a bridge sensor is described. The integrated circuit (IC) comprises a voltage regulator for providing a voltage to drive the sensor and the integrated circuit; a temperature sensor for measuring a temperature of the environment; a programmable gain amplifier having inputs connected to the sensor for receiving differential outputs of the sensor; a programmable offset generator for performing analog coarse calibration of the bridge sensor offset by providing an offset value to the input of the programmable gain amplifier; an analog multiplex selects either the programmable gain amplifier output or the environment temperature measurement from the temperature sensor as output; a high resolution analog-to-digital converter quantizes the output of the analog multiplex; a processor for performing digital fine calibration by calculating calibration coefficients for a selected set of parameters including the offset of the bridge sensor, temperature coefficients of the bridge sensor sensitivity and nonlinearity of the sensitivity; and a digital memory unit for storing the coarse calibration offset value and the calculated fine calibration coefficients. | 03-05-2009 |
| 20100045388 | Accuracy on-chip clock generator for multi-clock driven single chip solution - A mixed-signal chip is described. The mixed-signal chip comprises a first portion of analog circuit and second portion of digital circuit, an on-chip precision oscillator residing on the first analog portion, the precision oscillator has a precision frequency; a first on-chip non-precision tunable oscillator from a first clock domain residing on the first analog portion, the first non-precision tunable oscillator has a first adjustable frequency; a noise detector for detecting a first noise in the first clock domain; a frequency adjusting register for storing a first desired frequency value of the first on-chip non-precision tunable oscillator, wherein the first desired frequency value is determined based on the first detected noise; a control circuit for adjusting the adjustable frequency of the first non-precision tunable oscillator to the first desired frequency value by using the precision frequency of the on-chip precision oscillator as a reference. | 02-25-2010 |
Gang Xu, Shenzhen CN
| Patent application number | Description | Published |
|---|---|---|
| 20090129913 | Computer Room Environmental Conditioning Unit with Translatable Blowers - A conditioning unit can allow the blower to be easily translated from a first operable position in the conditioning unit to a second operable position external to the conditioning unit. The translation of the blower does not require the disconnection of the blower and, accordingly, does not require that the blower be disconnected and reconnected to the control system. Such capability can facilitate the installation of the conditioning unit into a variety of applications and allows the purchaser to customize the blower location based on the desired performance. The ability to customize the installation of the conditioning unit without requiring disconnection and reconnection of the blower can reduce the cost and expense associated with the installation into differing applications. | 05-21-2009 |