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: 20160084750
    Abstract: Microfluidic devices for 3D hydrodynamic microvortical rotation of at least one live single cell or cell cluster, systems incorporating the devices, and methods of fabricating and using the devices and systems, are provided. A microfluidic chip rotates at least one live single cell or cell cluster in a microvortex about a stable rotation axis perpendicular to an optical axis within a chamber having a trapezoidal cross-sectional shape located below a flow channel. An optical trap may be used to position the cell or cells with the microvortex, and the cell or cells may be subject to live-cell or cell cluster computer tomography imaging.
    Type: Application
    Filed: September 22, 2015
    Publication date: March 24, 2016
    Inventors: Hong Wang, Deirdre Meldrum, Rishabh Shetty, Laimonas Kelbauskas, Shih-Hui Chao, Roger Johnson, Jakrey Myers, Samantha Chan
  • Publication number: 20160086332
    Abstract: Disclosed are devices, methods and storage media for use in determining position information for imaging devices or mobile devices. In some implementations, a landmark is identified in an image which is obtained from an imaging device which in turn is positioned at a location and in a pose. A virtual two-dimensional image that would be visible from the landmark is determined based, at least in part, on the pose. The location or position information is based, at least in part, on the virtual two-dimensional image.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Inventors: Jiajian Chen, Hui Chao
  • Publication number: 20160084658
    Abstract: A method for updating a digital map includes receiving a digital map that shows a first region and a second region, and where the digital map includes a border that separates the first region from the second region. The method also includes receiving user trajectory data and generating portal information based on the received user trajectory data that cross the border between the first and second regions. The digital map is then updated with the portal information.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Inventors: Hui CHAO, Yin CHEN, Sameera PODURI, Saumitra M. DAS
  • Patent number: 9285227
    Abstract: A digital map having a routing path is created. Points in at least a majority of a linear length of the path may be constrained so that they are disposed substantially equidistant between structural features that are bounding navigable spaces in a structure. The creating of the path may include selecting a connected component corresponding to some or all of the navigable spaces. A morphological process may be performed on the connected component to create the path.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 15, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Hui Chao, Jiajian Chen
  • Publication number: 20160066150
    Abstract: Methods and apparatuses of configuring positioning estimations dynamically are disclosed. According to aspects of the present disclosure, the method may include receiving one or more user interface inputs and one or more sensor measurements at a mobile device, determining an intention score of a user according to the one or more user interface inputs and the one or more sensor measurements, selecting a positioning estimation scheme from a plurality of positioning estimation schemes based at least in part on the intention score of the user, and generating a positioning estimation at the mobile device using the positioning estimation scheme selected.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 3, 2016
    Inventors: Hui Chao, Yin Chen, Jiajian Chen
  • Patent number: 9275282
    Abstract: Systems, apparatus and methods for merging maps used by a positioning server are presented. Original maps are overlaid, concatenated or inset to create a more detailed map. The original maps are from different sources and/or in different formats. By merging or fusing maps together, a positioning server may create a better structural map, which is in turn used to create improved positioning assistance data.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 1, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Saumitra Mohan Das, Abhinav Sharma, Chandrakant Mehta, Hui Chao, Behrooz Khorashadi
  • Publication number: 20160012593
    Abstract: A method for template matching is described. In one implementation, an image including a target object is captured by a camera. A pose of the camera is estimated based, at least in part, on peripheral information from the image. Pre-selecting is performed on a set of pose templates by matching the pose of the camera to poses associated with pose templates to identify a set of matching pose templates. The template matching for the target object is then performed using the set of matching pose templates.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 14, 2016
    Inventors: Hui Chao, Raghuraman Krishnamoorthi, Faraz Mohammad Mirzaei
  • Publication number: 20150373500
    Abstract: Systems, apparatus and methods to perform hypothesis localization are presented. An access point (AP) is associated with one specific area, such as an LCI (location context identifier). Each specific area defines area information comprising an identifier, a list of APs, and a map of the specific area. Each specific area, and associated APs from the list of APs, is hypothesized as the specific area containing a mobile device. For each hypothesized area, a mobile device trajectory is formed using just listed APs from that area, to form a plurality of mobile device trajectories. After evaluating the resulting plurality of mobile device trajectories, a selection is made of the best fitting mobile device trajectory.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 24, 2015
    Inventors: Yin CHEN, Faraz MOHAMMAD MIRZAEI, Hui CHAO, Sameera PODURI
  • Publication number: 20150365454
    Abstract: An access node may enhance the upload experience by performing media processing services at the access node. The access node may receive media content from one or more client devices. The media content may include a plurality of content items. The access node may process at least a first portion of the media content to produce processed media content. Several examples of media processing services are described, including an image or audio enhancement process, discarding low quality content items, discarding redundant content items, categorizing/ranking the content items, facial recognition, and the generation of a compilation content item. After processing at least the first portion of the media content to produce processed media content, the access node may transmit the processed media content to a server.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 17, 2015
    Inventors: Hui Chao, Saumitra Mohan Das, Dilma Menezes Da Silva, Priyanka Tembey, Vrajesh Rajesh Bhavsar
  • Publication number: 20150365804
    Abstract: Methods and apparatuses of providing assistance data of a venue to a mobile device are disclosed. According to aspects of the present disclosure, one approach is to compute a visibility area that may satisfy positioning criteria for a venue, for example a mobile device may observe sufficient signals for positioning in the visibility area. Then, positioning assistance data may be generated that includes the information of signal characteristics in this visibility area. With this approach, the size of the positioning assistance data can be reduced and can be used more efficiently for positioning applications without losing useful information.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 17, 2015
    Inventors: Jiajian CHEN, Yin Chen, Hui Chao, Ravi Palanki
  • Publication number: 20150358810
    Abstract: Methods, non-transitory processor-readable storage media, devices, and systems for improving user experience, energy consumption, and performance of a mobile device by automatically configuring applications.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 10, 2015
    Inventors: Hui Chao, Dario Suarez Gracia, Gheorghe Calin Cascaval
  • Publication number: 20150354969
    Abstract: Various techniques are provided for identifying a position uncertainty of a mobile device, such as, based, at least in part, on a measure of potential hindrance of an estimated trajectory. For example, an example method may comprise estimating a trajectory of the mobile device within a particular environment, determining a measure of potential hindrance for at least a portion of the trajectory based, at least in part, on an electronic map that is indicative of a presence or an absence of one or more obstacles, and presenting an indication of a position uncertainty to a user of the mobile device. The position uncertainty may be based, at least in part, on the measure of potential hindrance.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 10, 2015
    Inventors: Hui Chao, Sameera Poduri, Payam Pakzad, Ayman Fawzy Naguib
  • Publication number: 20150350847
    Abstract: Disclosed are methods and apparatuses for improving location estimation. The method receives LCI updates from an LCI disambiguation engine. The method determines that a trigger threshold is reached, wherein the trigger threshold is based on proximity to a poor location estimation region. The method requests enhanced assistance data, wherein the assistance data includes at least one AP associated with a second LCI that is different than a first LCI, the first LCI being associated with a present position of the apparatus. The method receives position updates from a Position Engine using the enhanced assistance data.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hui CHAO, Jiajian CHEN, Saumitra Mohan DAS
  • Publication number: 20150350846
    Abstract: Systems, apparatus and methods disclosed herein facilitate vision based mobile device location determination. In some embodiments, a method for estimating a position of a mobile device may comprise: detecting that the mobile device is in communication with at least one of a plurality of devices, where each of the plurality of devices associated with a corresponding device identifier. The capture of at least one image by an image sensor coupled to the mobile device may be triggered, based, in part on: the device identifier corresponding to the device in communication with the mobile device, and/or a field of view of the image sensor. A location of the mobile device may then be determined, based, in part, on the at least one captured image.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Yin CHEN, Hui Chao, Ayman Fawzy Naguib
  • Publication number: 20150341753
    Abstract: Systems and methods for determining whether a mobile device is indoors or outdoors based on ambient signal measurements are described herein. A method for performing indoor/outdoor detection for a mobile device as described herein includes identifying one or more selected radio channels, including at least one of amplitude modulation (AM) radio stations, frequency modulation (FM) radio stations, or television stations, in an area of the mobile device; obtaining information relating to reference outdoor signal strengths for the respective selected radio channels; calculating measured signal strengths for signals received via the selected radio channels; comparing the reference outdoor signal strengths and the measured signal strengths; and classifying the mobile device as indoors or outdoors based on a result of the comparison.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 26, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Yin CHEN, Ayman Fawzy NAGUIB, Hui CHAO
  • Patent number: 9191782
    Abstract: Techniques for providing improved navigation through an indoor environment using a mobile device are provided. A method according to these techniques includes accessing a 2D map of the indoor environment, accessing customization information comprising one or more attributes to be applied to a 3D model of the indoor environment derived from the 2D map, analyzing the 2D map to extract geometry information associated with the layout of the indoor environment, generating the 3D model based on the geometry extracted from the 2D map and the customization information, generating a 3D representation of a current location of the mobile device within the indoor environment based on the 3D model; and displaying the 3D representation on a display of the mobile device.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 17, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Hui Chao, Jiajian Chen, Saumitra Mohan Das
  • Patent number: 9185675
    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: Grant
    Filed: November 18, 2013
    Date of Patent: November 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jiajian Chen, Yin Chen, Hui Chao, Ayman Fawzy Naguib
  • Patent number: 9183185
    Abstract: Information relating to an exclusion zone to be provided on a page is received (102), where the exclusion zone defines a corresponding area of the page that is free of content to be inserted in the page. A layout defining plural partitions on the page is produced (104), where the layout includes the exclusion zone and the content having a plurality of elements that are inserted by recursively defining the plural partitions on the page, where the exclusion zone and content elements are provided in respective ones of the plural partitions, and where recursively defining the plural partitions considers presence of the exclusion zone.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: November 10, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hui Chao, C. Brian Atkins, Daniel R. Tretter
  • Patent number: 9185284
    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: Grant
    Filed: November 14, 2013
    Date of Patent: November 10, 2015
    Assignee: QUALCOMM Incorporated
    Inventor: Hui Chao
  • Publication number: 20150296479
    Abstract: Systems, apparatus, and methods for estimating the location of a wireless device include determining the location estimate based on accessible access points and without using a received signal strength indicator. In some embodiments, the location estimate is determined based on a center of mass of the accessible access points, a closest accessible access point, a center of mass of N access points, an average angle of the accessible access points, or a Parzen density of accessible access point distributions.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 15, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Hui CHAO, Yin CHEN, Payam PAKZAD, Andrea CARNEVALI