Patents by Inventor Hien Nguyen

Hien 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).

  • METHOD AND SYSTEM FOR ANATOMICAL OBJECT DETECTION USING MARGINAL SPACE DEEP NEURAL NETWORKS
    Publication number: 20150238148
    Abstract: A method and system for anatomical object detection using marginal space deep neural networks is disclosed. The pose parameter space for an anatomical object is divided into a series of marginal search spaces with increasing dimensionality. A respective deep neural network is trained for each of the marginal search spaces, resulting in a series of trained deep neural networks. Each of the trained deep neural networks can evaluate hypotheses in a current parameter space using discriminative classification or a regression function. An anatomical object is detected in a medical image by sequentially applying the series of trained deep neural networks to the medical image.
    Type: Application
    Filed: May 12, 2015
    Publication date: August 27, 2015
    Inventors: Bogdan Georgescu, Yefeng Zheng, Hien Nguyen, Vivek Kumar Singh, Dorin Comaniciu, David Liu
  • Method and System for Machine Learning Based Assessment of Fractional Flow Reserve
    Publication number: 20150112182
    Abstract: A method and system for determining fractional flow reserve (FFR) for a coronary artery stenosis of a patient is disclosed. In one embodiment, medical image data of the patient including the stenosis is received, a set of features for the stenosis is extracted from the medical image data of the patient, and an FFR value for the stenosis is determined based on the extracted set of features using a trained machine-learning based mapping. In another embodiment, a medical image of the patient including the stenosis of interest is received, image patches corresponding to the stenosis of interest and a coronary tree of the patient are detected, an FFR value for the stenosis of interest is determined using a trained deep neural network regressor applied directly to the detected image patches.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 23, 2015
    Inventors: Puneet Sharma, Ali Kamen, Bogdan Georgescu, Frank Sauer, Dorin Comaniciu, Yefeng Zheng, Hien Nguyen, Vivek Kumar Singh
  • TISSUE RETRACTOR
    Publication number: 20150057501
    Abstract: A tissue retractor device is provided. The tissue retractor device includes a handle attached to an inflatable rake-shaped tissue retractor head.
    Type: Application
    Filed: March 21, 2013
    Publication date: February 26, 2015
    Applicant: LapSpace Medical Ltd.
    Inventors: Assaf Livne, Gilad Lavi, Hien Nguyen
  • Adjustable portable light
    Patent number: 8911103
    Abstract: A portable light includes: a cylindrical housing having a longitudinal axis and receiving a bezel and a lamp for projecting a light radially away from the longitudinal axis; and a cradle assembly including a clamp for receiving the cylindrical housing, wherein the clamp includes a plurality of features for engaging selected ones of corresponding features on the cylindrical housing to secure the cylindrical housing at a selected rotational position about its longitudinal axis with regard to the cradle assembly.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: December 16, 2014
    Assignee: SureFire, LLC
    Inventors: John W. Matthews, Ronald S. Gibson, Michael D. Anderson, Michael D. Picciotta, Hien Nguyen
  • PROTECTIVE CASE WITH SWITCH COVER
    Publication number: 20140239916
    Abstract: A protective case can house a portable electronic device. The portable electronic device can have a switch (e.g., for switching an operational mode of the portable electronic device). The protective case can have a switch cover that engages the switch of the portable electronic device when the portable electronic device is in the protective case. The switch cover can be moved between positions corresponding to positions of the switch of the portable electronic device. As the switch cover is moved, the switch cover correspondingly moves the switch.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Applicant: Mophie, Inc.
    Inventors: Nguyen To, Hien Nguyen, William Benjamin Hasbrook, Sean Michael Stuck
  • Representing object shapes using radial basis function support vector machine classification
    Patent number: 8718380
    Abstract: A shape of an object is represented by a set of points inside and outside the shape. A decision function is learned from the set of points an object. Feature points in the set of points are selected using the decision function, or a gradient of the decision function, and then a local descriptor is determined for each feature point.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: May 6, 2014
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Fatih Porikli, Hien Nguyen
  • FASCIAL CLOSURE SUTURE DEVICE
    Publication number: 20130304096
    Abstract: An embodiment in accordance with the present invention provides a device and method for suturing the fascia or other tissue in a patient. The device includes a first arm and a second arm pivotally coupled to one another and housing a spring-based lever system that is configured to frictionally hold a portion of a needle within each of the first and second arms. A switch allows the spring-based lever system to be used to pass the needle between the first and second arms. When the switch is in a first position, the needle is frictionally held by the spring-based lever system within the first arm and released within the second arm. Likewise, when the switch is in a second position, the needle is frictionally held by the spring-based lever system within the second arm and released within the first arm.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 14, 2013
    Inventors: Hien Nguyen, Sohail Zahid, Ang Tu, Daniel Peng, Stephen Van Kooten, Leslie Myint, Anvesh Annadanam, Luis Herrera, Haley Huang, Adam Clark
  • Right-angle girder tie
    Patent number: 8484927
    Abstract: A connector for joining a supported member to a supporting member is formed with a series of angularly-joined flanges. The flanges are substantially planar and are substantially vertically oriented, when joining the supported member to the supporting member. The connector allows the end of a supported truss to be connected to a vertical member in the open web of a supporting truss.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: July 16, 2013
    Assignee: Simpson Strong-Tie Company, Inc
    Inventor: Hien Nguyen
  • Apparatus and method for providing wireless communication and FM transceiver operation for a wireless computer mouse
    Patent number: 8456423
    Abstract: Wireless computer mouse operation may be provided by receiving a user detection signal from a sensor of the wireless computer mouse to determine the presence of a user. In one embodiment, an operation mode of the wireless computer mouse may be determined by a controller based, at least in part, on the user detection signal. Thereafter, the controller can enable at least one of a short range wireless communication module and a FM transceiver of the wireless computer mouse based on the operation mode determined by the controller.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: June 4, 2013
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Hien Nguyen, Yi Zhou, Vijay Parpia
  • Apparatus and method for providing wireless communication and global positioning for a wireless computer mouse
    Patent number: 8457556
    Abstract: Wireless computer mouse operation may be provided by receiving a user detection signal from a sensor of the wireless computer mouse to determine the presence of a user. In one embodiment, an operation mode of the wireless computer mouse may be determined by a controller based, at least in part, on the user detection signal. Thereafter, the controller can enable at least one of a short range wireless communication module and a global positioning receiver of the wireless computer mouse based on the operation mode determined by the controller.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: June 4, 2013
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Hien Nguyen, Yi Zhou, Vijay Parpia
  • LOCATION-BASED ASSOCIATION FOR COMMUNICATIONS NETWORKS
    Publication number: 20120243520
    Abstract: In one implementation, a region descriptor associated with a communications access point and a location descriptor are accessed at a client. The client determines that a location described by the location descriptor is included within a region described by the region descriptor. The client then requests association with the communications access point in response to the determining.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 27, 2012
    Inventors: Sung-Ju Lee, Jung Gun Lee, John S. Balian, Richard S. Davis, Vincent Ma, Hien Nguyen, Thomas S. Stefanski, Raul Hernan Etkin
  • Method for representing objects with concentric ring signature descriptors for detecting 3D objects in range images
    Patent number: 8274508
    Abstract: A 3D object is represented by a descriptor, wherein a model of the 3D object is a 3D point cloud. A local support for each point p in the 3D point cloud is located, and reference x, y, and z axes are generated for the local support. A polar grid is applied according to the references x, y, and z axes a along an azimuth and a radial directions on an xy plane centered on the point p such that each patch on the grid is a bin for a 2D histogram, wherein the 2D histogram is a 2D matrix F on the grid and each coefficient of the 2D matrix F corresponds to the patch on the grid. For each grid location (k, l), an elevation value F(k, l) is estimated by interpolating the elevation values of the 3D points within the patches to produce the descriptor for the point p.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: September 25, 2012
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Fatih Porikli, Hien Nguyen
  • Method for Representing Objects with Concentric Ring Signature Descriptors for Detecting 3D Objects in Range Images
    Publication number: 20120206438
    Abstract: A 3D object is represented by a descriptor, wherein a model of the 3D object is a 3D point cloud. A local support for each point p in the 3D point cloud is located, and reference x, y, and z axes are generated for the local support. A polar grid is applied according to the references x, y, and z axes a along an azimuth and a radial directions on an xy plane centered on the point p such that each patch on the grid is a bin for a 2D histogram, wherein the 2D histogram is a 2D matrix F on the grid and each coefficient of the 2D matrix F corresponds to the patch on the grid. For each grid location (k, l), an elevation value F(k, l) is estimated by interpolating the elevation values of the 3D points within the patches to produce the descriptor for the point p.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 16, 2012
    Inventors: Fatih Porikli, Hien Nguyen
  • Representing Object Shapes Using Radial Basis Function Support Vector Machine Classification
    Publication number: 20120207384
    Abstract: A shape of an object is represented by a set of points inside and outside the shape. A decision function is learned from the set of points an object. Feature points in the set of points are selected using the decision function, or a gradient of the decision function, and then a local descriptor is determined for each feature point.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 16, 2012
    Inventors: Fatih Porikli, Hien Nguyen
  • Lighting device
    Patent number: D659270
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: May 8, 2012
    Assignee: SureFire, LLC
    Inventors: Hien Nguyen, Loc Nguyen
  • Open back cap
    Patent number: D667611
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: September 25, 2012
    Inventor: Hien Nguyen
  • Unbanded snap battery case for a mobile device
    Patent number: D718293
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: November 25, 2014
    Assignee: Mophie, Inc.
    Inventors: Andrew Namminga, Hien Nguyen
  • Desktop mobile device dock
    Patent number: D722056
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: February 3, 2015
    Assignee: Mophie, Inc.
    Inventors: Hien Nguyen, William Benjamin Hasbrook, Sean Michael Stuck, Denny Tsai
  • Unbanded battery case for a mobile device
    Patent number: D723530
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: March 3, 2015
    Assignee: Mophie, Inc.
    Inventors: Andrew Namminga, Hien Nguyen
  • Mobile device vehicle mount
    Patent number: D726175
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: April 7, 2015
    Assignee: Mophie, Inc.
    Inventors: Denny Tsai, Hien Nguyen, Helen Qin, Ken Ma