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Nguyen, NC

Bao Duy Nguyen, Charlotte, NC US

Patent application numberDescriptionPublished
20100080522METHOD OF PROVIDING MID-SPAN ACCESS TO AN OPTICAL FIBER RIBBON CABLE AND THE OPTICAL FIBER RIBBON CABLE - A method of facilitating mid-span access of an optical fiber ribbon cable, and the resulting cable, that provides for redeveloping and/or modifying excess ribbon length with the accessed cable structure. The method includes the use of a form placed within the cable structure that controls the excess ribbon length. The method may further include the reconstitution of severed strength members.04-01-2010

Bay V. Nguyen, Cary, NC US

Patent application numberDescriptionPublished
20080307439REDUCING MEMORY ACCESSES IN PROCESSING TCP/IP PACKETS - A method, computer program product and system for processing TCP/IP packets. A TCP protocol stack may store a payload of a received TCP/IP packet in a data fragment list. The TCP protocol stack may further read the header of the received packet to extract a value used to index into a table storing a list of transport control blocks (TCBs). The TCP protocol stack may further perform a lock and a read operation on the TCB indexed in the table. The TCP protocol stack may further transmit the payload to the TCP application without requiring the application to perform a lock, read, write or unlock operation on the indexed TCB since the TCP protocol stack and the TCP application are operating on the same thread. By the TCP application foregoing the lock, read, write and unlock operations on the TCB, there is a reduction in the number of memory accesses.12-11-2008

Bay Van Nguyen, Cary, NC US

Patent application numberDescriptionPublished
20090103536Method and System for Reducing Look-Up Time in Packet Forwarding on Computer Networks - A method and system for reducing the lookup time in packet forwarding on computer networks. A first lookup is performed in a memory tree to find a first protocol forwarding entry in the memory tree. The forwarding entry includes first protocol (e.g., EGP) information and cached associated second protocol (e.g., IGP) information. Both EGP and IGP information are retrievable with the first lookup and used in the determination of an EGP route for the data packet. If the cached IGP information has been invalidated due to address updates, a second lookup can be performed to find an original IGP entry in the memory tree, the information from which can be cached in the EGP forwarding entry if a background maintenance task has finished designating all the EGP entries as having out-of-date caches.04-23-2009

Binh Q. Nguyen, Cary, NC US

Patent application numberDescriptionPublished
20080228504Technique to Deflect Incident Ticket Submission in Real-Time - A method, system and computer-usable medium are disclosed for reducing the amount of human interaction involved in the resolution of incident tickets. A user interacts with a self-service portal to generate an incident ticket to resolve an issue. The generated incident ticket is routed by the self-service portal to an incident ticket management system for processing. The incident ticket management system accepts the incident ticket and in turn routes it to an incident ticket deflection system (ITDS). The ITDS analyzes the resolution state of the issue and generates relevant search queries that are submitted to an issue resolution knowledgebase. The results of the search queries are then returned to the ITDS, which compares them to captured interactions of the user with the self-service portal. Irrelevant query results or those that match the captured user interactions are disregarded. The remaining query results are used by the ITDS to generate remedial actions for the user to perform. If the remedial actions do not resolve the user's issue, then the incident ticket is escalated to a helpdesk operator. When received by the helpdesk operator, the incident ticket is populated with the captured user interactions with the self-service portal, the recommended remedial actions for the user to perform, and the current resolution status of the user's issue. The helpdesk operator then uses the information contained in the escalated incident ticket to facilitate the resolution of the user's issue.09-18-2008

Hai Dang Nguyen, Wilmington, NC US

Patent application numberDescriptionPublished
20110098581Plethysmograph with animal restraint - A plethysmograph is described that includes a test chamber having an opening; a sealing member including an annular flexible seal to receive at least a part of the head of the test animal mounted across the opening whereby the animal breathes air outside the test chamber, while the animal's body is within the test chamber; and a restraining member attachable to the sealing member, the restraining member including a clamp positionable behind the test animal's head, to prevent the animal from withdrawing its head from the restraining member. The animal is positioned in the restraining member and the sealing member is attached to the restraining member before insertion of the animal and assembly into the test chamber, avoiding previous difficulties in simultaneously placing an animal into the chamber while inserting the animal's nose into the seal. The plethysmograph also eliminates the necessity for a plunger to prevent rearward movement of the animal.04-28-2011

Han T. N. Nguyen, Apex, NC US

Patent application numberDescriptionPublished
20120072822DATA INTEGRATION - User data is integrated with services for management by the user. User selected data is annotated with a processor. The processor maps the annotated selected data to a user selected service provider. The annotated data is transmitted to a user selected service provider. The annotated user selected data is stored in a memory at the user selected service provider.03-22-2012

Khuy V. Nguyen, Charlotte, NC US

Patent application numberDescriptionPublished
20080268345Battery Separator With Z-Direction Stability - A battery separator is a microporous membrane. The membrane has a major volume of a thermoplastic polymer and a minor volume of an inert particulate filler. The filler is dispersed throughout the polymer. The membrane exhibits a maximum Z-direction compression of 95% of the original membrane thickness. Alternatively, the battery separator is a microporous membrane having a TMA compression curve with a first substantially horizontal slope between ambient temperature and 125° C., a second substantially horizontal slope at greater than 225° C. The curve of the first slope has a lower % compression than the curve of the second slope. The curve of the second slope is not less than 5% compression. The TMA compression curve is graphed so that the Y-axis represents % compression from original thickness and the X-axis represents temperature.10-30-2008

Patent applications by Khuy V. Nguyen, Charlotte, NC US

Kiet Nguyen, Durham, NC US

Patent application numberDescriptionPublished
20110282715BUSINESS ACTIVITY MONITORING ANOMALY DETECTION - An anomaly detector compares a first event from a business activity monitoring system to a second number from an independent trusted source, wherein the first event includes a first number. The anomaly detector determines that the first number from the business activity monitoring system is inconsistent with the second number. The anomaly detector generates a calibration relationship between first number and second number based on time, responsive to a determination that the first number is inconsistent with the second number. The anomaly detector stores the calibration relationship. The anomaly detector receives a third number from the business activity monitoring system at an interval after comparing the first number. The anomaly detector displays the third number to a dashboard. The anomaly detector displays a qualifier to the third number.11-17-2011

Kiet Q. Nguyen, Cary, NC US

Patent application numberDescriptionPublished
20100023362MANAGEMENT OF BUSINESS PROCESS KEY PERFORMANCE INDICATORS - A method for managing key performance indicators (KPIs) in an enterprise business having a plurality of business units can be provided. The method can include receiving a target for a general KPI and at least one constraint for a general attribute, wherein the general KPI is an aggregation of KPIs and wherein the general attribute is an aggregation of attributes. The method can further include reading a formula for each of the business units, wherein a formula defines how changes in a KPI are correlated with changes in the unit's attribute. The method can further include calculating for each business unit a separate target for the KPI of the business unit such that: a) the general attribute remains within the at least one constraint and b) the target for the general KPI is attained and sending to each business unit a separate target that was calculated.01-28-2010
20100205256ASSET STATE CHANGE EVENT PROCESSING - Asset state change events are processed using an asset-state identifier corresponding to a combination of the current state for the asset and the asset. The asset-state identifier uniquely identifies the combination from all other possible combinations of assets and states being monitored. When a new asset is identified, the asset-state identifiers can be generated and stored for subsequent use in updating the current state of the asset. In an embodiment, an event source in a business activity monitoring (BAM) system can send an update message that includes one or more asset-state identifiers for processing by a messaging system. Multiple asset-state identifiers can be processed by the messaging system and/or a monitoring system within a single transaction.08-12-2010

Liem H. Nguyen, Apex, NC US

Patent application numberDescriptionPublished
20090116496SYNCHRONIZING PORTIONS OF A DATABASE WITH DIFFERENT DATABASES ON DIFFERENT NODES OF A NETWORK - Techniques are disclosed for synchronizing a database related to a first node in a network with multiple nodes. Each node includes a database different from a database on a different node. An inquiry control message is sent to each node in a candidate set of one or more nodes on the network, which are different from the first node. In response to the inquiry control message, the first node receives a first set of one or more messages from a particular node different from the first node. The first set indicates a portion from the database of the particular node. The portion is relevant for the first node. A particular portion of a first database for the first node is derived from the first set of messages. The particular portion is less than all of the first database. These techniques allow the first node to derive its full database from multiple adjacent nodes.05-07-2009

Phuong T. Nguyen, Cary, NC US

Patent application numberDescriptionPublished
20090077166OBTAINING LOCATION INFORMATION OF A SERVER - A system for obtaining location information of a server. More particularly, embodiments of the present invention cause a node to obtain correlation of a first address of at least one target server with a second address of the at least one target server based on the second address of the at least one target server and a plurality of addresses similar in type to the first address. Embodiments further retrieve the correlation from the node. As a result, a client may access the correlated location information and communicate directly with the target server.03-19-2009
20090077413APPARATUS, SYSTEM, AND METHOD FOR SERVER FAILOVER TO STANDBY SERVER DURING BROADCAST STORM OR DENIAL-OF-SERVICE ATTACK - An apparatus, system, and method are disclosed to failover to a standby server when a primary server is under broadcast storm or denial-of-service (“DoS”) attack. A primary attack sensing module is included to monitor a rate of incoming data from a computer network to a primary server and to determine if the rate of incoming data is above a primary data rate threshold. A standby contact module is included to request a standby data rate status from a standby server in response to the primary attack module determining that the rate of incoming data to the primary server is above the primary data rate threshold. The standby server is connected to the primary server over a private network. The standby data rate status includes a determination by the standby server of whether a rate of data received by the standby server is above a standby data rate threshold. A standby receiver module is included to receive a standby data rate status from the standby server over the private network. A switchover module is included to deactivate the primary server and to send a command to activate the standby server as a primary server in response to the received standby data rate status indicating that the rate of data received by the standby server has not exceeded the standby data rate threshold.03-19-2009
20110075666Autoconfiguration Of An IPv6 Component In A Segmented Network - Autoconfiguration of an IPv6 component in a segmented network including receiving an IPv6 packet; determining whether the received IPv6 packet is a router advertisement or a router solicitation; if the received IPv6 packet is a router advertisement, then retrieving through an out-of-band link a MAC address for the IPv6 component, removing a MAC address of a sending router, inserting in the packet instead an internal MAC address for forwarding packets to the IPv6 component, removing a multicast destination MAC address, inserting in the packet the destination MAC address of the IPv6 component, and forwarding the packet to the IPv6 component as a unicast message; if the received IPv6 packet is a router solicitation, then removing the MAC address of the sending IPv6 component, inserting in the packet instead an external MAC address for forwarding packets to the router, and forwarding the packet to the router as a multicast message.03-31-2011

Patent applications by Phuong T. Nguyen, Cary, NC US

Phuong Thanh Nguyen, Cary, NC US

Patent application numberDescriptionPublished
20090044263System and Method for On-Demand Dynamic Control of Security Policies/Rules by a Client Computing Device - A system and method for an end user to change the operation of a data flow filter mechanism, such as a firewall, that operates to control data flows between a plurality of protected computing devices and one or more non-protected computing devices. With the system and method, an administrator of a sub-network of computing devices may set a client computing device's scope of rules/policies that may be changed by a user of the client computing device, with regard to a data flow filter mechanism. The user of the client computing device, or the client computing device itself, may then log onto the data flow filter mechanism and modify the operation of the data flow filter mechanism within the limits established by the administrator.02-12-2009

Patent applications by Phuong Thanh Nguyen, Cary, NC US

Trung M. Nguyen, Morrisville, NC US

Patent application numberDescriptionPublished
20090089604APPARATUS, SYSTEM, AND METHOD FOR EVENT, TIME, AND FAILURE STATE RECORDING MECHANISM IN A POWER SUPPLY - An apparatus, system, and method are disclosed for event, time, and failure state recording in a power supply. Disclosed is a power supply that receives AC voltage as an input and provides regulated DC voltage as an output; a microcontroller integrated into the power supply that regulates output voltage and monitors, records, and reports operating conditions of the power supply; and a non-volatile solid-state storage that can be repeatedly read from, written to, and erased by the microcontroller and integrated within the microcontroller such that only a single address is needed to access both the microcontroller and the solid-state storage, the solid-state storage configured to store operating data received from the microcontroller, the operating data including the recorded operating conditions of the power supply.04-02-2009
20090167089APPARATUS, SYSTEM, AND METHOD FOR A HIGH EFFICIENCY REDUNDANT POWER SYSTEM - An apparatus, system, and method are disclosed for a high efficiency redundant power system. First and second power supplies are connected in parallel to power a load. Each power supply includes a primary stage and a regulator stage. Each primary stage regulates voltage on an internal bus that is input for each regulator stage. Each regulator stage regulates a regulated bus connected to the load. A power meter detects power provided to the load and determines if the provided power is below a predefined power threshold. A regulator control module shuts down the regulator stage of the first power supply after the provided power falls below the predefined power threshold so the second power supply powers the load and the primary stage of the first power supply remains operational. A recovery module starts up the regulator stage of the first power supply after failure of the second power supply.07-02-2009
20100164427APPARATUS, SYSTEM, AND METHOD FOR FAULT TOLERANT COOLING IN A REDUNDANT POWER SYSTEM - An apparatus, system, and method are disclosed for fault tolerant cooling in a redundant power system. The apparatus receives power from a common power bus to power one or more power supply fans. The apparatus detects a non-functioning redundant power supply. The apparatus receives a fan control signal within a non-functioning redundant power supply. In addition, the apparatus uses the received fan control signal to synchronize a fan speed of a power supply fan within the non-functioning redundant power supply. The fan speed is synchronized with at least one fan control signal of a power supply fan within a functioning redundant power supply. Thus, the power supply fans of a non-functioning power supply continue to operate and are synchronized with power supply fans in functioning power supplies.07-01-2010

Trung M. Nguyen, Durham, NC US

Patent application numberDescriptionPublished
20090172453APPARATUS, SYSTEM, AND METHOD FOR AN INTEGRATED POWER SUPPLY EFFICIENT IN HIGH AND LOW POWER CONDITIONS - An apparatus, system, and method are disclosed for a power supply that is efficient in both high and low power conditions. An integrated power supply regulates current on a regulated bus to maintain a regulated bus voltage under varying load conditions. The integrated power supply includes a first power supply rated to provide full load power to the load and second power supply rated to provide power at levels below a minimum power threshold. The second power supply includes switching elements that have lower switching losses than switching elements of the first power supply. A sensing module measures power. A switching module starts up the second power supply and shuts down the first power supply if the measured power falls below the minimum power threshold, and starts up the first power supply and shuts down the second power supply if the measured power rises above the minimum power threshold.07-02-2009
20100008005APPARATUS, SYSTEM, AND METHOD FOR LOSSLESS REVERSE VOLTAGE PROTECTION - An apparatus, system, and method are disclosed for preventing reverse current in a switching power supply. An electrical connector receives an input current from an electric source. An input current limiting module substantially prevents the input current from reaching a switching power supply when the input current is flowing in a reverse direction. A voltage reduction module reduces an input voltage of the switching power supply to a switching voltage when the input current is flowing in a forward direction. A switching module closes a switch in response to the voltage reduction module providing the switching voltage. The switch provides the input current a lower impedance path to the switching power supply than does the input current limiting module.01-14-2010
20100011234APPARATUS, SYSTEM, AND METHOD FOR REDUCING IDLE POWER IN A POWER SUPPLY - An apparatus, system, and method is provided for reducing idle power in a power supply. The apparatus includes a connection module to determine whether a load is connected to the output terminal of the power supply. Also included is an idle module that turns off the power supply for an idle interval when the connection module determines that a load is not connected to the output. A monitor module turns on the power supply for a monitor interval when the idle interval ends. During the monitor interval, the connection module determines whether the load has been connected to the output terminal of the power supply. An activation module turns on the power supply if the connection module determines, during the monitor interval, that the load has been connected to the power supply. If the load has not been connected, another idle interval is initiated.01-14-2010

Vinh N. Nguyen, Durham, NC US

Patent application numberDescriptionPublished
20080284668GRADIENT INDEX LENS FOR MICROWAVE RADIATION - A gradient index lens for microwave radiation. The lens includes a plurality of electric field coupled resonators wherein each resonator has a resonant frequency. The resonators are arranged in a planar array having spaced apart side edges and spaced apart top and bottom edges. The resonant frequency of the resonators varies between at least two of the spaced edges of the array in accordance with the desired properties of the lens.11-20-2008
20090206963TUNABLE METAMATERIALS USING MICROELECTROMECHANICAL STRUCTURES - A metamaterial comprises a support medium, such as a planar dielectric substrate and a plurality of resonant circuits supported thereby. At least one resonant circuit is a tunable resonant circuit including a conducting pattern and a voltage-tunable capacitor, so that an electromagnetic parameter (such as resonance frequency) may be adjusted using an electrical control signal. In some examples of the present invention, the voltage-tunable capacitor includes a MEMS structure.08-20-2009
20100220035METAMATERIAL MICROWAVE LENS - A metamaterial microwave lens having an array of electronic inductive capacitive cells in which each cell has an electrically conductive pattern which corresponds to incident electromagnetic radiation as a resonator. At least one cell has a first and second electrical sections insulated from each other and each which section has at least two legs. A static capacitor is electrically connected between one leg of the first section of the cell and one leg of the second section of the cell. A MEMS device is electrically disposed between the other legs of the first and second sections of the cell. The MEMS device is movable between at least two positions in response to an electrical bias between the first and second sections of the cell to vary the index of refraction and resonant frequency of The cell.09-02-2010
20100301971TUNABLE METAMATERIALS - A metamaterial comprises a support medium, such as a planar dielectric substrate and a plurality of resonant circuits supported thereby. At least one resonant circuit is a tunable resonant circuit including a conducting pattern and a tunable material, so that an electromagnetic parameter (such as resonance frequency) may be adjusted using an electrical control signal applied to the tunable material.12-02-2010
20100314040FABRICATION OF METAMATERIALS - An example method of fabricating a metamaterial comprises providing a first metamaterial layer, the first metamaterial layer including a first plurality of conducting patterns, such as electrically coupled resonators. A second metamaterial layer is then formed, including a second plurality of conducting patterns, to form a multilayer metamaterial. Positional alignment of the first and second plurality of conducting patterns can be achieved relative to the same fiducial mark, which may be associated with the first metamaterial layer, for example supported by a first substrate or on an alignment layer that is attached to the first substrate.12-16-2010
20110175672TUNABLE METAMATERIALS - Examples of the present invention include a metamaterial comprising a plurality of resonators disposed on a substrate, the substrate comprising a dielectric support layer and a relatively thin semiconductor layer, having a Schottky junction between at least one conducting resonator and the semiconductor layer. The properties of the resonator may be adjusted by modifying the physical extent of a depletion region associated with the Schottky junction.07-21-2011

Patent applications by Vinh N. Nguyen, Durham, NC US