Patents by Inventor Nam Nguyen

Nam Nguyen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150246246
    Abstract: An image-guided radiotherapy system for tumor treatment featuring obtaining a three-dimensional visualized tumor image, identifying the boundary of the tumor, and designating and applying a boosted radiation dose of treatment for a boost region within the tumor boundary. A predetermined safety region is between the boosted region and the tumor boundary with a predetermined minimum distance between the boosted region boundary and tumor boundary.
    Type: Application
    Filed: October 16, 2013
    Publication date: September 3, 2015
    Inventor: Nam NGUYEN
  • Publication number: 20150242318
    Abstract: A system for data processing with management of a cache consistency in a network of processors including cache memories, the network including plural nodes for access to a main memory interconnected with one another, a set of directories being distributed between nodes of the network, each directory including a table of correspondence between cache lines and information fields on the cache lines. The system includes a first sub-network for interconnection of the nodes with one another, implementing a first message transmission protocol providing read/write access to the directories during any passage in the corresponding nodes of a message passing through the first sub-network, and a second sub-network for interconnection of the nodes with one another, implementing a second message transmission protocol, the second protocol excluding any read/write access to the directories during any passage in the corresponding nodes of a message passing through the second sub-network.
    Type: Application
    Filed: June 21, 2013
    Publication date: August 27, 2015
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT, BULL SAS
    Inventors: Christian Bernard, Eric Guthmuller, Huy Nam Nguyen
  • Patent number: 9094862
    Abstract: A system and method that may facilitate transmission bandwidth savings in non-stationary vehicle-to-vehicle wireless communication channels. At a transmitting vehicle, a transmitter may adaptively change the number of pilot symbols or pilot rate within a frame based upon the current channel statistics. The transmitter may utilize a look-up table approach to select a best pilot rate based upon current conditions associated with the transmitting vehicle, and/or a new frame structure to transmit pilot rate information. At the receiving vehicle, the receiver may be configured to detect a unique waveform transmitted by the transmitting vehicle to estimate the pilot rate information. Alternatively, the receiver on the receiving vehicle may be configured to predict and verify the pilot rate information from an encoded data symbol embedded within a frame transmitted by the transmitting vehicle, which may entail a detection algorithm using encoded data symbols and/or an estimation algorithm using channel statistics.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: July 28, 2015
    Assignee: BlackBerry Limited
    Inventors: Sagar Dhakal, Nam Nguyen, James Earl Womack
  • Patent number: 9078055
    Abstract: A scheme for localizing a wireless user equipment (UE) device's relative position with respect to a spatial configuration based on audio signatures received via a multi-channel audio system, e.g., an audio system of a vehicle or home entertainment system. The wireless UE device is configured to capture the audio signatures from a head unit that are placed in an out-of-hearing band, wherein the audio signatures comprise a single beep per channel that is separately detectable and are simultaneously transmitted by the head unit to the speaker channels. The wireless UE device includes a persistent memory module having program instructions for processing the captured signal including the out-of-band signatures in order to compute time delays. A localization module is configured to estimate the wireless UE device's relative position based on the time delays associated with respective speaker channels.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: July 7, 2015
    Assignee: BlackBerry Limited
    Inventors: Nam Nguyen, Sagar Dhakal
  • Publication number: 20150168471
    Abstract: Examples disclose a computing system comprising a host device with a connection socket to support multiple types of cables by detecting a first key position and a second key position for determination of the type of cable. Further, the computing system comprises a switching circuit to determine a logic state of each of the key positions. Additionally, the switching circuit is to deliver power associated with the type of cable based on the logic states of the key positions.
    Type: Application
    Filed: September 20, 2012
    Publication date: June 18, 2015
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Binh T. Truong, Nam Nguyen, Robert S. Wright
  • Publication number: 20150106571
    Abstract: A cache coherence management system includes: a set of directories distributed between nodes of a network for interconnecting processors including cache memories, each directory including a correspondence table between cache lines and information fields on the cache lines; and a mechanism updating the directories by adding, modifying, or deleting cache lines in the correspondence tables. In each correspondence table and for each cache line identified, at least one field is provided for indicating a possible blocking of a transaction relative to the cache line considered, when the blocking occurs in the node associated with the correspondence table considered. The system further includes a mechanism detecting fields indicating a transaction blocking and restarting each transaction detected as blocked from the node in which it is indicated as blocked.
    Type: Application
    Filed: April 12, 2013
    Publication date: April 16, 2015
    Applicants: Commissariat a l'energie atomique et aux ene alt, BULL SAS
    Inventors: Christian Bernard, Eric Guthmuller, Huy Nam Nguyen
  • Publication number: 20150043541
    Abstract: A method at a first device for enabling a device-to-device wireless link, the method detecting whether a presence signal of a second device is received over a first time period, the presence signal of the second device having a time-slot boundary; and if the presence signal of the second device is not detected, initiating a time-slot boundary by the first device including: transmitting a first presence signal of the first device in a selected time-slot; and checking for an acknowledgment to the first presence signal.
    Type: Application
    Filed: August 8, 2013
    Publication date: February 12, 2015
    Applicant: BlackBerry Limited
    Inventors: Yufei Wu Blankenship, Sagar Dhakal, Nam Nguyen
  • Publication number: 20150015938
    Abstract: A fiber optic parametric amplifier that includes a resonating cavity. The resonating cavity includes linear fiber optic gain medium, with negative chromatic dispersion; and a nonlinear fiber optic gain medium with positive chromatic dispersion.
    Type: Application
    Filed: June 23, 2014
    Publication date: January 15, 2015
    Inventors: Khanh KIEU, Thanh Nam NGUYEN, Nasser PEYGHAMBARIAN, Takefumi OTA
  • Publication number: 20140356455
    Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.
    Type: Application
    Filed: December 6, 2013
    Publication date: December 4, 2014
    Applicants: The Board of Trustees of the Leland Stanford Junior University, Parkinson's Institute
    Inventors: Renee Ann Reijo Pera, J. William Langston, Birgitt Schule, Theodore D. Palmer, Blake Byers, Ha Nam Nguyen, James Anthony Byrne, Branden John Cord
  • Publication number: 20140359337
    Abstract: Circuits for preventing power drawn by a load from exceeding a threshold are provided. A first circuit monitors power supplied to the load and disables a power supply if a threshold is exceeded. A second circuit disconnects the load from the power supply if the threshold is exceeded.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventors: Szu Tao Tong, Chien-Hao Lu, Nam Nguyen, Robert S. Wright
  • Patent number: 8898455
    Abstract: A system and method for authentication of a communication device is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller element to compute a shared secret key based at least in part on a communication device private key and a cryptography algorithm, where the communication device private key is stored in an identity module of the communication device and is unknown to an authentication center, and wherein the communication device is authenticated by the authentication center based at least in part on the shared secret key. Additional embodiments are disclosed.
    Type: Grant
    Filed: June 1, 2013
    Date of Patent: November 25, 2014
    Assignee: AT&T Intellectual Property I, LP
    Inventors: Nam Nguyen, Donggen Zhang, Kevin Meng
  • Patent number: 8886627
    Abstract: Inverse search systems and methods operate on identifiers of content items in a corpus such as the World Wide Web In an inverse search, the user submits a query that includes an identifier of a target content item in the corpus and receives information (metadata) about the target content item being returned to the user. Many types of metadata can be returned, including ratings or other metadata related to the target content item obtained from users, popularity data specific to the target content item, information about previously submitted forward search queries that led to the target content item being identified as a hit, and metadata extracted from the target content item.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 11, 2014
    Assignee: Yahoo! Inc.
    Inventors: Ali Diab, David Ku, Kevin Lee, Qi Lu, Nam Nguyen, Eckart Walther
  • Publication number: 20140269357
    Abstract: A system and method that may facilitate transmission bandwidth savings in non-stationary vehicle-to-vehicle wireless communication channels. At a transmitting vehicle, a transmitter may adaptively change the number of pilot symbols or pilot rate within a frame based upon the current channel statistics. The transmitter may utilize a look-up table approach to select a best pilot rate based upon current conditions associated with the transmitting vehicle, and/or a new frame structure to transmit pilot rate information. At the receiving vehicle, the receiver may be configured to detect a unique waveform transmitted by the transmitting vehicle to estimate the pilot rate information. Alternatively, the receiver on the receiving vehicle may be configured to predict and verify the pilot rate information from an encoded data symbol embedded within a frame transmitted by the transmitting vehicle, which may entail a detection algorithm using encoded data symbols and/or an estimation algorithm using channel statistics.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Research In Motion Limited
    Inventors: Sagar Dhakal, Nam Nguyen, James Earl Womack
  • Patent number: 8806255
    Abstract: Embodiments herein relate to controlling a connection to an interface. In an embodiment, a protection circuit is to detect a voltage at an input rail of a regulator, where the regulator is to provide power to a peripheral device via an interface. Next, the protection circuit is to compare the detected voltage to a reference voltage. Then, the protection circuit is to generate a detection signal based on the comparison. Lastly, the protection circuit is to disable a connection between the regulator and the interface based on the detection signal.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: August 12, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert C Brooks, Robert S Wright, Nam Nguyen
  • Patent number: 8804292
    Abstract: A protective circuit compares at least two different signals and asserts a control node toward respective logic states accordingly. At least one of the signals is derived from a voltage on a power rail within a computer or other device. A switching element passes or isolates an enable signal based on the logic state of the control node, enabling or preventing operation of a power supply, accordingly. Central processing units (CPUs) or other elements are protected against electrically caused damage in the event that a fault is detected by the protective circuit.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: August 12, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Robert S Wright, Nam Nguyen, Richard W Clutter
  • Patent number: 8799592
    Abstract: A computer system with a memory containing a first guest operating system, including a first portion of the memory and a second guest operating system, including a second portion of the memory. The memory further contains an address exchange module for exchanging memory address handles, a data mover for moving data between the first and second portions of the memory, and an emulated input output memory management unit for controlling the data mover. Instructions in the memory cause the processor to: register accessible memory with the emulated input output memory management unit, write address handles to the address exchange module, read the address handles from the address exchange module, and move the data into the second portion of the memory.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: August 5, 2014
    Assignee: International Business Machines Corporation
    Inventors: Gerd Bayer, Marco Kraemer, Hoang-Nam Nguyen, Christoph Raisch, Stefan Usenbinz
  • Patent number: 8760833
    Abstract: Apparatus and methods related to limiting surge current are provided. An under-voltage condition on a node is sensed and respective signals are provided in response. The under-voltage condition correlates to a surge in load current drawn from the node. A foldback signal is provided to a power controller to adjust the voltage on the node. The foldback signal is nullified when the surge current condition has been curtailed. Printers, computers and other apparatus can include surge current-limiting accordingly.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: June 24, 2014
    Assignee: Hewlett Packard Development Company, L.P.
    Inventors: Robert S Wright, Nam Nguyen, Richard W Clutter
  • Publication number: 20140169512
    Abstract: A direct conversion receiver includes: a high linearity mixer device including a sampler unit charge-sampling an input current according to a sampling frequency, and a buffer unit receiving an output signal from the sampler unit while having a low input impedance, amplifying the received signal, and outputting a current signal; and a filter device decimating an output signal from the mixer device and FIR-filtering the decimated signal.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 19, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Woo PARK, Young Jae LEE, Hyun Kyu Yu, Byung Hun MIN, Seong Do KIM, Hoai Nam NGUYEN, Sang Gug LEE
  • Publication number: 20140148093
    Abstract: A system and method for communicating with a portable electronic device are provided. The system includes a plurality of relay antennas mounted to a vehicle. The system further includes a processor in communication with the plurality of relay antennas to relay a communication message between the portable electronic device and a base station. The processor is also configured to locate the portable electronic device based on input data received from the plurality of relay antennas. The method involves establishing a communication link between the portable electronic device and a plurality of relay antennas. The method further involves relaying a communication message between the portable electronic device and a base station. The method also involves locating the portable electronic device based on input data from the plurality of relay antennas.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Nam Nguyen, Yufei Blankenship
  • Publication number: 20140136629
    Abstract: A device, system and method for smart notifications is provided. When a new message is received for a unified mailbox, a relevance level associated with the new message is determined at a processor of the device, the unified mailbox providing messages received via a communication interface of the device from a plurality of accounts, a notification device of the device is controlled, via the processor, to provide a notification based on the relevance level, the notification being one of a plurality of multi-level notifications, each associated with different relevance levels.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 15, 2014
    Applicant: Research In Motion Limited
    Inventor: Nam Nguyen