Patents by Inventor Dang Nguyen

Dang 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: 20140067763
    Abstract: Techniq ues for recovering a virtual machine are disclosed. In one particular embodiment, the techniques may be realized as a method for recovering a virtual machine comprising the steps of selecting a first backup copy of a virtual machine in a first data store, selecting a second data store; enabling use of the virtual machine by reading from the first data store and writing to the second data store, selecting a second backup copy of the virtual machine, and migrating the virtual machine from the second backup copy to the second data store.
    Type: Application
    Filed: September 5, 2012
    Publication date: March 6, 2014
    Applicant: SYMANTEC CORPORATION
    Inventors: Girish Sureshrao JORAPURKAR, Gaurav MAKIN, Sinh Dang NGUYEN
  • Patent number: 8628479
    Abstract: 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.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: January 14, 2014
    Assignee: Buxco Electronics, Inc.
    Inventors: Joseph Lomask, Yuval Shemesh, Richard A. Shafer, Chau Hong Le, Hai dang Nguyen
  • Publication number: 20130278895
    Abstract: A digital measurement system and method for optical applications including a mobile client device having a digital camera and an audio port, and a laser measurement device having a laser. The laser measurement device connected to the mobile client device and electrically connected to the audio port of the mobile client device. The mobile client device is configured to activate the laser at the same time as the digital camera is activated, and capture an image of a patient. The mobile client device is configured to access a measurement module to calculate position of wear measurements based on a location of a laser mark in the captured image.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 24, 2013
    Applicant: VISION SERVICE PLAN ("VSP")
    Inventors: Mai Ngoc Pham, Hoa Dang Nguyen
  • Publication number: 20130278896
    Abstract: A digital measurement system and method for optical applications including a mobile client device having a digital camera and an audio port, and a laser measurement device having a laser and a magnetic card reader. The laser measurement device and the magnetic card reader are electrically connected to the audio port of the mobile client device. The mobile client device is configured to activate the laser at the same time as the digital camera is activated, capture an image of a patient, and calculate position of wear measurements based on a location of a laser mark in the captured image. The mobile client device also allows an order for a frame and lenses to be submitted to a ophthalmic laboratory, and payment transactions to be processed using the magnetic card reader.
    Type: Application
    Filed: September 28, 2012
    Publication date: October 24, 2013
    Applicant: VSP Labs, Inc.
    Inventors: Mai Ngoc Pham, Hoa Dang Nguyen
  • Publication number: 20130096566
    Abstract: A method for determination of mechanical integrity of bone includes embedding a threaded rod into the bone, extracting the threaded rod out of the bone, and measuring the force required to extract the threaded rod from the bone, wherein the force required to extract the threaded rod is indicative of the mechanical integrity of the bone. A device for determining the mechanical integrity of bone includes a housing, a rod holder mounted to the housing and configured to hold a threaded rod which is embedded in the bone, a pulling force applicator which applies a pulling force to the rod holder to extract the threaded rod from the bone, and a pulling force measuring instrument which measures the pulling force applied to the rod holder by the pulling force applicator as the threaded rod is extracted from the bone.
    Type: Application
    Filed: March 23, 2011
    Publication date: April 18, 2013
    Applicant: Geisinger Clinic
    Inventors: Thomas Richard Bowen, Eric Allen Kennedy, Daniel Curtis Saunders, Eric Huy-Dang Nguyen, Christopher Lee Gabryluk, Jessica Diane Levy, Sarah Jane Wohlman
  • Patent number: 8196979
    Abstract: A bumper system includes an injection molded energy absorber of polymeric material having hollow longitudinally-spaced lobes configured to crush and absorb energy during a pedestrian impact, and straps interconnecting adjacent lobes. The lobes are particularly sized and dimensioned, including potentially external ribs and/or apertures in corners, to provide a relatively uniform impact energy absorption during an impact stroke during crush of the shear walls of the lobes, such as within +/?30% or more preferably within +/?20% of a desired amount regardless of a specific location of impact, along a selected center portion of the energy absorber. A reason for the uniformity is to promote pedestrian safety regardless of the specific location where a pedestrian's leg strikes the energy absorber.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: June 12, 2012
    Assignees: Shape Corp., Volkswagen Aktiengesellschaft
    Inventors: Daniel Ralston, Vidya Revankar, Amit Ashok Kulkarni, Darin Evans, Olaf Insel, Yassine Ghozzi, Alexander Besch, Oliver Knoke, Ngoc-Dang Nguyen
  • Patent number: 8195612
    Abstract: A method and apparatus for providing a catalog to optimize stream-based restoration is described. In one embodiment, a method for providing a catalog to optimize stream-based restoration includes processing a catalog that indicates at least one location of at least one data block on backup media, wherein the at least one data block are associated with at least one backup for at least one object and accessing at least one data block using the catalog to create a data stream for restoring the at least one object.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: June 5, 2012
    Assignee: Symantec Corporation
    Inventors: Kuldeep Sureshrao Nagarkar, Sinh Dang Nguyen
  • Publication number: 20120061978
    Abstract: A bumper system includes an injection molded energy absorber of polymeric material having hollow longitudinally-spaced lobes configured to crush and absorb energy during a pedestrian impact, and straps interconnecting adjacent lobes. The lobes are particularly sized and dimensioned, including potentially external ribs and/or apertures in corners, to provide a relatively uniform impact energy absorption during an impact stroke during crush of the shear walls of the lobes, such as within +/?30% or more preferably within +/?20% of a desired amount regardless of a specific location of impact, along a selected center portion of the energy absorber. A reason for the uniformity is to promote pedestrian safety regardless of the specific location where a pedestrian's leg strikes the energy absorber.
    Type: Application
    Filed: November 5, 2010
    Publication date: March 15, 2012
    Inventors: Daniel Ralston, Vidya Revankar, Amit Ashok Kulkarni, Darin Evans, Olaf Insel, Yassine Ghozzi, Alexander Besch, Oliver Knoke, Ngoc-Dang Nguyen
  • Publication number: 20120066356
    Abstract: A system and method automatically assigns unique addresses to devices connected on a communication bus based on the parameters measured by each device. Assignment of addresses may be provided centrally by a controller or may be distributed, in which each device negotiates with other devices to assign unique addresses to each device.
    Type: Application
    Filed: June 5, 2009
    Publication date: March 15, 2012
    Applicant: OTIS ELEVATOR COMPANY
    Inventors: Dang Nguyen, Jason Armistead, Bradley Scoville, Ming Martin Fang
  • Patent number: 8049039
    Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: November 1, 2011
    Assignee: Akzo Nobel N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
  • Publication number: 20110109105
    Abstract: A bumper system includes an injection molded energy absorber of polymeric material having hollow longitudinally-spaced lobes configured to crush and absorb energy during a pedestrian impact, and straps interconnecting adjacent lobes. The lobes are particularly sized and dimensioned, including potentially external ribs and/or apertures in corners, to provide a relatively uniform impact energy absorption during an impact stroke during crush of the shear walls of the lobes, such as within +/?30% or more preferably within +/?20% of a desired amount regardless of a specific location of impact, along a selected center portion of the energy absorber. A reason for the uniformity is to promote pedestrian safety regardless of the specific location where a pedestrian's leg strikes the energy absorber.
    Type: Application
    Filed: November 5, 2010
    Publication date: May 12, 2011
    Inventors: Daniel Ralston, Vidya Revankar, Amit Ashok Kulkarni, Darin Evans, Olaf Insel, Yassine Ghozzi, Alexander Besch, Oliver Knoke, Ngoc-Dang Nguyen
  • Publication number: 20110098581
    Abstract: 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.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Inventors: Joseph Lomask, Yuval Shemesh, Richard A. Shafer, Chau Hong Le, Hai Dang Nguyen
  • Patent number: 7802302
    Abstract: A scanning manager scans the file systems of virtual machines running on a base computer. In order to scan a virtual machine, the scanning manager identifies the file on the base machine that represents the virtual machine, freezes the virtual machine, and creates a snapshot thereof. The scanning manager restarts the frozen machine, and starts the snapshot. The files of the snapshot are mapped at a virtual machine level, and the resulting file mapping information is used to scan the files of the virtual machine at a base machine level. The scanning can comprise scanning for malicious code, such as virus signatures. The scanning manager can scan one, multiple or all virtual machine(s) running on the base computer, in conjunction with a full or partial scan of the base computer, or independently.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: September 21, 2010
    Assignee: Symantec Corporation
    Inventors: Kuldeep Sureshrao Nagarkar, Sinh Dang Nguyen, Ajay Sadashiv Wani
  • Publication number: 20100153731
    Abstract: An algorithm or an authentication system for a low-cost authenticating device such as a radio frequency identification (RFID) tag, or a sensor node are provided, by which authentication is processed efficiently without requiring complicated hardware. A claimant entity attempting to be authenticated and a verifying entity to authenticate the claimant entity, share a plurality of secret keys so that authentication is processed as the claimant entity responds to a challenge by the verifying entity. The verifying entity and the claimant entity perform authentication using Learning Parity with Noise (LPN) problem. The verifying entity and the claimant entity generate keys independently from one another, and exchange the generated keys. The claimant entity may generate an encrypted value for use in the authentication, using a basic Boolean Exclusive OR and a logical AND operations.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Applicant: INFORMATION AND COMMUNICATIONS UNIVERSITY
    Inventors: Dang Nguyen Duc, Hyunrok Lee, Kwangjo Kim
  • Publication number: 20100153719
    Abstract: An algorithm or an authentication system for a low-cost authenticating device such as a radio frequency identification (RFID) tag, or a sensor node are provided, by which authentication is processed efficiently without requiring a random number. A claimant entity attempting to be authenticated and a verifying entity to authenticate the claimant entity, share a plurality of secret keys so that authentication is processed as the claimant entity responds to a challenge by the verifying entity. The verifying entity and the claimant entity perform authentication using Learning Parity with Noise (LPN) problem. The claimant entity may generate an encrypted value for use in the authentication, using a basic Boolean Exclusive OR and a logical AND operations.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Applicant: INFORMATION AND COMMUNICATIONS UNIVERSITY
    Inventors: Dang Nguyen Duc, Hyunrok Lee, Kwangjo Kim
  • Publication number: 20090209788
    Abstract: The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ether amines prepared by the process possess the peaked ethoxylation distribution and contain less hazardous by-product.
    Type: Application
    Filed: June 21, 2007
    Publication date: August 20, 2009
    Applicant: AKZO NOBEL N.V.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains, Kha Carl Dang Nguyen, Charles Woodville Davis
  • Patent number: 7370164
    Abstract: A backup manager backups file systems of virtual machines running on a base computer. In order to backup a virtual machine, the backup manager identifies the file on the base machine that represents the virtual machine, freezes the virtual machine, and creates a snapshot thereof. The backup manager restarts the frozen machine, and starts the snapshot. The files of the file system of the snapshot are mapped at a virtual machine level, and the resulting file mapping information is used to backup the files of the virtual machine at a base machine level. The mapping information is current as of the instant the snapshot was taken. The backup manager can backup one, multiple or all virtual machine(s) running on the base computer, in conjunction with a full or incremental backup of the base computer, or independently.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: May 6, 2008
    Assignee: Symantec Operating Corporation
    Inventors: Kuldeep Sureshrao Nagarkar, Sinh Dang Nguyen, Ajay Sadashiv Wani
  • Publication number: 20070045050
    Abstract: An elevator call button assembly (20) includes at least one call button (50) having a surface (70) that is touchable by an individual to indicate a desired call in the elevator system. A responder (56) provides a tactile indication that the call has been successfully placed. In one example, the responder (56) comprises a vibrating motor that moves a moveable member (52) once the system controller (68) has successfully received a signal indicating the desired call.
    Type: Application
    Filed: May 19, 2003
    Publication date: March 1, 2007
    Inventors: Paul Stranieri, Dang Nguyen
  • Patent number: 7159911
    Abstract: A bumper for a vehicle contains a bumper cross beam extending in a transversal direction of the vehicle, a bumper cover forming the external face of the bumper, and an energy-absorbing insert disposed at least in parallel between the mounted bumper cross beam and the bumper cover. The insert has a plurality of deformation cavities and/or deformation free spaces. The insert has a first boundary layer, a medial layer, and a second boundary layer. The medial layer has a different energy absorptive capacity than the two boundary layers and is associated with the bumper cross beam. The deformation cavities and/or deformation free spaces are embodied in the medial layer such that in case of a collision, the insert is plastically deformable at least partially in the transversal and/or longitudinal direction of the vehicle along a small part of a block length to absorb energy.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: January 9, 2007
    Assignee: Volkswagen AG
    Inventors: Ngoc-Dang Nguyen, Dirk Becker
  • Publication number: 20060131901
    Abstract: A bumper for a vehicle contains a bumper cross beam extending in a transversal direction of the vehicle, a bumper cover forming the external face of the bumper, and an energy-absorbing insert disposed at least in parallel between the mounted bumper cross beam and the bumper cover. The insert has a plurality of deformation cavities and/or deformation free spaces. The insert has a first boundary layer, a medial layer, and a second boundary layer. The medial layer has a different energy absorptive capacity than the two boundary layers and is associated with the bumper cross beam. The deformation cavities and/or deformation free spaces are embodied in the medial layer such that in case of a collision, the insert is plastically deformable at least partially in the transversal and/or longitudinal direction of the vehicle along a small part of a block length to absorb energy.
    Type: Application
    Filed: November 30, 2005
    Publication date: June 22, 2006
    Inventors: Ngoc-Dang Nguyen, Dirk Becker