Patents by Inventor Hui Chao

Hui Chao 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: 20150169597
    Abstract: Various techniques for locating an item are presented. A first location history may be received that is indicative of a first plurality of locations visited by a first mobile device. A first indication of a type of item being located by a user of the first mobile device may also be received. A second location history indicative of a second plurality of locations visited by a second mobile device may be received. A second indication of the type of item being located by a user of the second mobile device may also be received. A location of the type of item may be determined based on the first location history, the second location history and optionally the first and second indications. The determined location of the type of item may be subsequently provided to a mobile device to assist a user of the mobile device to locate the type of item. Provision of location history information and receipt of information to locate an item may occur in combination on a mobile device.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 18, 2015
    Inventors: Stephen William EDGE, Hui CHAO, Saumitra Mohan DAS
  • Patent number: 9058702
    Abstract: Methods and devices are described for providing localized secure navigation in conjunction with near field communication access control systems. In one potential embodiment, a mobile device such as a cell phone may communicate with a door access control point using near field communication to receive location access system information. The mobile device may then authorize download and execution of a local secure navigation module from a location access system using the location access system information for use in receiving location assistance data, based on an authentication level associated with the mobile device. Such location assistance data may be used by the local secure navigation module to provide location assistance when the mobile device is in a secure location. The location of the mobile device may then be tracked using at least the location assistance data and the communication with the door access control point.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: June 16, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Hui Chao, Jiajian Chen, Saumitra Mohan Das, Ayman Fawzy Naguib
  • Publication number: 20150161440
    Abstract: Methods and devices are described for aligning map data from different levels of the same location/venue/environment. Certain embodiments may include receiving, at a computing device, first and second sets of map data associated with corresponding first and second levels of a location. The device may receive via a network or user interface, sets of anchor points matched across the different levels. These matched anchor points may then be used to deform one or more levels of map data to align any misaligned anchor points.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 11, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Jiajian Chen, Yin Chen
  • Publication number: 20150161819
    Abstract: Methods and devices are described for optimizing display of information such as map data on a mobile device. Certain embodiments may include receiving, at a mobile device, a first and second set of placement data associated with a first and second object. The mobile device may then determine overlap between a representation of the first object and the second object in a rendering of an image comprising the representation of the first object and the second object, using a set of viewing parameters, the first set of placement data and the second set of placement data. The set of viewing parameters may be adjusted to reduce overlap between the representation of the first object and the second object in the rendering of the image. In additional embodiments, 3D enhancements to two-dimensional map objects may be added to enhance the presentation of the information.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 11, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Jiajian Chen, Saumitra Mohan Das, Hui Chao
  • Publication number: 20150163641
    Abstract: Techniques are provided which may be implemented using various methods, apparatuses and/or articles of manufacture to provide or otherwise support mobile device positioning. The mobile device positioning may be based, at least in part, on one or more perceived routability constraints that may or may not affect actual movement of a mobile device within an indoor environment.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Payam Pakzad, Behrooz Khorashadi, Hui Chao
  • Publication number: 20150141035
    Abstract: Methods, apparatus, and computer program products for classifying a mobile device location are described. An example of a method for classifying the mobile device location includes mapping the mobile device location to a pixel address in a dilated test texture, wherein the dilated test texture corresponds to an uncertainty estimation associated with the mobile device location and determining an in-out classification of the mobile device location based on a query of a pixel value associated with the pixel address in the dilated test texture.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 21, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Jiajian CHEN, Yin CHEN, Hui CHAO, Ayman Fawzy NAGUIB
  • Patent number: 9020191
    Abstract: In one implementation, a method may comprise: determining a topological representation of an indoor portion of a building based, at least in part, on positions or number of lines in an image of the indoor portion of the building; and comparing the topological representation to one or more stored topological representations, for example in a digital map of the building, to determine a potential position of the indoor portion of the building.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: April 28, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Rajarshi Gupta, Saumitra Mohan Das, Hui Chao, Ayman Fawzy Naguib
  • Patent number: 9014716
    Abstract: Techniques are provided which may be implemented using various methods, apparatuses and/or articles of manufacture to provide or otherwise support mobile device positioning. The mobile device positioning may be based, at least in part, on one or more perceived routability constraints that may or may not affect actual movement of a mobile device within an indoor environment.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 21, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Payam Pakzad, Behrooz Khorashadi, Hui Chao
  • Publication number: 20150094089
    Abstract: Embodiments disclosed obtain a plurality of measurement sets from a plurality of sensors in conjunction with the capture of a sequence of exterior and interior images of a structure while traversing locations in and around the structure. Each measurement set may be associated with at least one image. An external structural envelope of the structure is determined from exterior images of the structure and the corresponding outdoor trajectory of a UE. The position and orientation of the structure and the structural envelope is determined in absolute coordinates. Further, an indoor map of the structure in absolute coordinates may be obtained based on interior images of the structure, a structural envelope in absolute coordinates, and measurements associated with the indoor trajectory of the UE during traversal of the indoor area to capture the interior images.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Inventors: Mark Leo Moeglein, Christopher Brunner, Hui Chao, Murali Ramaswamy Chari, Arvind Ramanandan, Mahesh Ramachandran, Abhishek Tyagi
  • Publication number: 20150095350
    Abstract: Methods, apparatuses, and devices for generating maps on a display of, for example, a mobile device, are presented. In one example, a server, such as a map server, may organize a data structure corresponding to a map based, at least in part, on a received query, estimated location, and/or a current route of a mobile device user. Points of interest (POIs) that may be more relevant to a mobile device user may be transmitted from a map server, for example, prior to POIs that may be less relevant. In one example, a plurality of POIs may be rendered on a display of a mobile device. One or more POIs may be emphasized on the display based on one or more criteria.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: JiaJian Chen, Hui Chao, Saumitra Mohan Das
  • Publication number: 20150092061
    Abstract: Techniques for determining brand information and refining a position of a mobile device are described herein. An example of a method for displaying branding information on a mobile device includes receiving a reference image feature data table based on a rough location of the mobile device, such that the reference image feature data table includes a collection of entity records and wherein each entity record includes a plurality of logo image feature fields, obtaining an image including a displayed logo, utilizing an image recognition process and the reference image feature data table on the image to determine a recognized logo, and displaying brand information based on the recognized logo.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 2, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hui CHAO, Saumitra Mohan DAS, Ayman Fawzy NAGUIB
  • Publication number: 20150087328
    Abstract: Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for improving positioning accuracy of a mobile device with a lower positioning capability, such as, for example, via one or more proximate mobile devices with a higher positioning capability.
    Type: Application
    Filed: September 23, 2013
    Publication date: March 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hui Chao, Kirk Allan Burroughs, Vinay Sridhara, Saumitra Mohan Das
  • Publication number: 20150070523
    Abstract: Certain embodiments relate to systems and methods for generating a single group image from multiple captured images. A first image and a second image may be captured, the first image including a first part of a group and the second image including a second part of the group. A user interface may be provided, in some embodiments, for capture of the second image that enables a photographer to provide input regarding the relative positioning of the first and second image as well as providing input on the relative positioning of the first and second parts of the group and the image scene background. In some embodiments, a lowest energy seam line may be determined for an overlapping portion of the first and second images, and the lowest energy seam line may be used for generating a final stitched image including both the first and second parts of the group.
    Type: Application
    Filed: November 14, 2013
    Publication date: March 12, 2015
    Applicant: QUALCOMM Incorporated
    Inventor: Hui Chao
  • Patent number: 8971667
    Abstract: A method for auto-resizing an original digital image from an original image to a resized image. The method comprises separating the foreground elements from the background elements, determining an original aspect ratio of the foreground elements and creating resized foreground elements by scaling the foreground elements while maintaining the original aspect ratio. The method further comprises creating resized background elements by stretching or shrinking the background elements to fit the dimensions of the resized image and repositioning the resized foreground and background elements on the resized image while maintaining the design intention of the original image.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: March 3, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hui Chao, Prasad Gabbur
  • Publication number: 20150045072
    Abstract: Techniques for position estimation, e.g., of a mobile communication device, using trajectory are described herein. A method for estimating position of a mobile device described herein includes obtaining a routing graph corresponding to an area, wherein the routing graph indicates traversable paths through the area; collecting trajectory information corresponding to movement of the mobile device through the area; forming a trajectory graph from the trajectory information; comparing the trajectory graph to at least one subset of the routing graph to determine at least one matching subset of the routing graph; and estimating the position of the mobile device based at least in part on the at least one matching subset of the routing graph.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 12, 2015
    Applicant: Qualcomm Incorporated
    Inventors: Hui CHAO, Jiajian CHEN, Sameera PODURI
  • Patent number: 8954267
    Abstract: Methods, apparatus, and computer program products for determining a mobile device location. An example of a method for determining a mobile device location includes receiving signals from a transmitter, measuring signal characteristics of the received signals, and downloading data from a database corresponding to a defined region associated with the transmitters. The downloaded data includes a set of position points, a classification of each position point, and expected signal characteristics for each position point. The method further includes comparing the measured signal characteristics with the expected signal characteristics for each position point, assigning a weight to position points based on the compared signal characteristics, and determining the mobile device location by selecting one position point from the set as a position point solution corresponding to the mobile device location based on the assigned weight.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: February 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Behrooz Khorashadi, Saumitra Mohan Das, Hui Chao
  • Patent number: 8938257
    Abstract: Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for logo detection for indoor positioning for use in or with a mobile device. Briefly, in accordance with one implementation, a method may include extracting, at a mobile device, visual features from one or more images captured via a camera sensor of the mobile device; and estimating a location of the mobile device based, at least in part, on a match between extracted visual features and one or more brand-specific visual signatures associated with one or more points of interest of one or more known locations. In some instances, an estimated location of a mobile device may be refined based, at least in part, on at least one additional POI of one or more POIs of one or more known locations.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: January 20, 2015
    Assignee: QUALCOMM, Incorporated
    Inventors: Hui Chao, Nan Hu, Saumitra Mohan Das, Rajarshi Gupta
  • Patent number: 8913847
    Abstract: Disclosed herein are a system and a method that use a background model to determine and to segment target content from an image and replace them with different content to provide a composite image. The background model can be generated based on image data representing images of a predetermined area that does not include traversing content. The background model is compared to image data representing a set of captured images of the predetermined area. Based on the comparison, portions of an image that differs from the background model are determined as the traversing content. A target content model is used to determine the target content in the traversing content. The target content determined in the images is replaced with different content to provide a composite image.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: December 16, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Feng Tang, Suk Hwan Lim, Hui Chao
  • Publication number: 20140354822
    Abstract: System and method for determining location of a device using opposing cameras are disclosed. In one embodiment, the method includes activating a front-facing camera and a back-facing camera of the device, capturing a first pair of images from a first orientation using the front-facing camera and the back-facing camera, where the first pair of images includes a first front image and a first back image, monitoring the device being rotated to a second orientation, capturing a second pair of images from the second orientation using the front-facing camera and the back-facing camera, where the second pair of images includes a second front image and a second back image, and determining a location of the device using the first pair of images and the second pair of images.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Inventors: Hui CHAO, Saumitra M. DAS, Sameera PODURI
  • Publication number: 20140330396
    Abstract: A control system and method based on a physiological signal are disclosed, by which a user wears a detection device on the user body to be detected with a physiological signal of the user body, a control server may process the physiological signal to generate a corresponding control command, and thus an under-control device may be controlled to operate based on the control command. By using the technical means, the present invention may achieve a technical efficacy of controlling the under-control device based on the user's physiological signal.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 6, 2014
    Inventors: Chih-Tsung Chang, Hou-Cheng Lu, Shu-Fen Ko, Mei-Hui Chao