Patents by Inventor Chang Yuan

Chang Yuan 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).

  • System for feature detection for low contrast images
    Patent number: 8971632
    Abstract: A system for the identification of feature points in low contrast images.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: March 3, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Masakazu Yanase, Chang Yuan, Xinyu Xu
  • Image pre-processing for reducing consumption of resources
    Patent number: 8965117
    Abstract: Embodiments of the subject technology provide methods and systems of image pre-processing for improving the accuracy of optical character recognition (OCR) and reducing the power consumption on a given computing device (e.g., mobile computing device). The subject technology, in some examples, classifies an image received from a camera of a mobile computing device into one or more classes: 1) normal background, 2) textured background, 3) image with text, 4) image with barcode, 5) image with QR code, and/or 6) image with clutter or “garbage.” Based on the classes associated with the image, the subject technology may forgo certain image processing operations, when the image is not associated with a particular class, in order to save resources (e.g., CPU cycles, battery power, memory usage, etc.) on the mobile computing device.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: February 24, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Oleg Rybakov, Christopher John Lish, Chang Yuan, Junxiong Jia, Rakesh Madhavan Nambiar, Matias Omar Gregorio Benitez
  • DETECTING ITEM INTERACTION AND MOVEMENT
    Publication number: 20150019391
    Abstract: This disclosure describes a system for tracking removal or placement of items at inventory locations with a materials handling facility. In some instances, a user may remove an item from an inventory location and the inventory management system may detect that removal and update a user item list associated with the user to include an item identifier representative of the removed item. Likewise, if the user places an item at an inventory location, the inventory management system may detect that placement and update the user item list to remove an item identifier representative of the placed item.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 15, 2015
    Inventors: Dilip Kumar, Elie Micah Kornfield, Alexander Clark Prater, Sridhar Boyapati, Xiaofeng Ren, Chang Yuan
  • Edge based template matching
    Patent number: 8867844
    Abstract: A method for image processing includes determining edge pixels of a model image and determining features for the edge pixels of the model image. The image processing includes determining edge pixels of an input image and determining features for the edge pixels of the input image. The system matches the features of the model image with the features of the input image to determine candidate locations of an object within the input image.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: October 21, 2014
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Petrus J. L. Van Beek, Xinyu Xu, Chang Yuan, Xiao-fan Feng
  • AIR CONDITIONING CONTROL DEVICE, AIR CONDITIONING SYSTEM, AND AIR CONDITIONING CONTROL METHOD THEREOF
    Publication number: 20140306021
    Abstract: The present invention discloses an air conditioner control device, air conditioning system, and air conditioner control method. The air conditioner control device of the present invention comprises a base and a controller. The base senses a temperature or humidity of a first environment. The controller can be optionally combined with or detached from the base. When the controller is detached from the base, the controller senses a temperature or humidity of a second environment and communicates with the base using a wireless network protocol. By doing so, the output of an air conditioner can be flexibly adjusted depending on the environment that a user is in.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 16, 2014
    Inventors: CORY KOON-SING LAM, CHANG-YUAN HSIEH, HUNG-YANG LEE, CHANG-HUNG CHEN, WEI-LI HSU, SHENG-YUAN WANG
  • Mobile three dimensional imaging system
    Patent number: 8837813
    Abstract: A mobile device including an imaging device with a display and capable of obtaining a pair of images of a scene having a disparity between the pair of images. The imaging device estimating the distance between the imaging device and a point in the scene indicated by a user on the display. The imaging device displaying the scene on the display together with an indication of a geometric measure.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: September 16, 2014
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Hao Pan, Chang Yuan
  • Newton ring mura detection system
    Patent number: 8780097
    Abstract: A system for detecting newton ring mura on a display includes sensing an image of the display with an image capture device and determining a border boundary of an illuminated portion of the display. The image is spatially filtered as defined by the border boundary using a filter that reduces sensor noise and a grid pattern of the display. The spatially filtered image is processed to determine if a region proximate a pixel location is a potential newton ring mura defect and characterizing the potential newton ring mura defects to remove at least one of the potential newton ring mura defects.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: July 15, 2014
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xinyu Xu, Xiao-fan Feng, Chang Yuan
  • Template matching with histogram of gradient orientations
    Patent number: 8774510
    Abstract: A system for image processing includes determining edge pixels of a model image using an edge based technique and determining an angular orientation for each the edge pixels of the model image. The system determines a histogram of gradient orientations based upon the angular orientations of the model image. The system determining edge pixels of an input image using an edge based technique and determining an angular orientation for each of the edge pixels of the input image. The system determines a histogram of gradient orientations based upon the angular orientations of the input image. The system compares the histogram of gradient orientations of the model image with the histogram of gradient orientations of the input image to determine candidate locations of an object within the input image.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: July 8, 2014
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xinyu Xu, Petrus J. L. Van Beek, Chang Yuan
  • ELECTRONIC DEVICE
    Publication number: 20140161293
    Abstract: An electronic device includes a case, a speaker, a supporting stand, and a waterproof breathable membrane. The case includes a first inner space and a through hole connected to the first inner space. The speaker is disposed in the first inner space, and produces sound waves outwards from the through hole. The supporting stand connects the case to cover the through hole. The supporting stand includes a sound hole and a second inner space connected to the sound hole and the through hole. The waterproof breathable membrane covers one of the sound hole and the through hole.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 12, 2014
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Shing-Da WANG, Chih-Wen CHIANG, Chang-Yuan WU, Yi-Chang WU, Hsin-Chih HSIAO, Yen-Ling LIU, Chien-Chu CHEN
  • Electronic devices for defect detection
    Patent number: 8705839
    Abstract: An electronic device configured for defect detection is described. The electronic device includes a processor and instructions stored in memory that is in electronic communication with the processor. The electronic device performs background suppression on the image data based on a transform of the image data to obtain a score map. The electronic device also applies thresholding to the score map to generate a detection mask. The thresholding comprises bi-thresholding. The electronic device additionally detects any defects based on the detection mask. The electronic device further indicates any defects.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: April 22, 2014
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Qiang Zhang, Xinyu Xu, Chang Yuan, Hae-Jong Seo, Petrus J. L. Van Beek
  • Electronic apparatus
    Patent number: 8693184
    Abstract: An electronic apparatus includes a housing, a fan module, a heat-dissipating module, and a channel. The housing includes a first heat-dissipating vent and a second heat-dissipating vent. The fan module is disposed in the housing and includes a first outlet and a second outlet. The first outlet is substantially aligned with the first heat-dissipating vent and has a first airflow. The second outlet has a second airflow. The heat-dissipating module is disposed in the housing between the first outlet and the first heat-dissipating vent. The channel is located between the second outlet and the second heat-dissipating vent for guiding the second airflow out of the housing from the second heat-dissipating vent. The temperature of the first heat-dissipating vent is higher than that of the second heat-dissipating vent.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: April 8, 2014
    Assignee: Compal Electronics, Inc.
    Inventors: Chang-Yuan Wu, Hui-Lian Chang
  • HEAT DISSIPATION STRUCTURE
    Publication number: 20140076529
    Abstract: A heat dissipation structure includes a first heat-conducting sheet, a second heat-conducting sheet and a meshed heat-conducting layer. The meshed heat-conducting layer is adhered between the first heat-conducting sheet and the second heat-conducting sheet. The meshed heat-conducting layer includes a plurality of first heat-conducting mediums and a plurality of second heat-conducting mediums, the first heat-conducting mediums and the second heat-conducting mediums are alternately arranged, and the thermal conductivity of each of the first heat-conducting mediums is less than the thermal conductivity of each of the second heat-conducting mediums.
    Type: Application
    Filed: September 2, 2013
    Publication date: March 20, 2014
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Jia-Yu Hung, Chang-Yuan Wu, Ching-Ya Tu, Tse-An Chu
  • THERMAL DISSIPATING MODULE
    Publication number: 20140071630
    Abstract: A thermal dissipating module suitable for removing heat from a heating element disposed on a circuit board is provided. The thermal dissipating module includes a heat conductive structure, an adhesive layer and an elastic member. The heat conductive structure is suitable for being disposed on the heating element. The adhesive layer is suitable for being disposed on the circuit board and adjacent to the heating element. The elastic member is glued to the circuit board by the adhesive layer, and the elastic member applies a force to make the heat conductive structure to be attached to the heating element.
    Type: Application
    Filed: August 5, 2013
    Publication date: March 13, 2014
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: Jia-Yu Hung, Chang-Yuan Wu, I-Feng Hsu, Ting-Wei Hsu
  • TEMPLATE MATCHING WITH HISTOGRAM OF GRADIENT ORIENTATIONS
    Publication number: 20140072217
    Abstract: A system for image processing includes determining edge pixels of a model image using an edge based technique and determining an angular orientation for each the edge pixels of the model image. The system determines a histogram of gradient orientations based upon the angular orientations of the model image. The system determining edge pixels of an input image using an edge based technique and determining an angular orientation for each of the edge pixels of the input image. The system determines a histogram of gradient orientations based upon the angular orientations of the input image. The system compares the histogram of gradient orientations of the model image with the histogram of gradient orientations of the input image to determine candidate locations of an object within the input image.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 13, 2014
    Applicant: SHARP LABORATORIES OF AMERICA, INC.
    Inventors: Xinyu XU, Petrus J.L. VAN BEEK, Chang YUAN
  • Agrochemical composition and method for preparing and using the same
    Patent number: 8653121
    Abstract: An agrochemical composition comprises an azole active ingredient and an N,N-dialkyl long chain alkylamide. The N,N-dialkyl long chain alkylamide is present in sufficient amount to prevent or inhibit the crystallization of the azole derivative during the application of the composition to a locus. Preferred N,N-Dialkyl long chain alkylamide(s) comprised in the composition is/are selected from the group consisting of compounds of the formula (I): in which (a) R1 and R2 are independently normal alkyl radicals having 2 carbon atoms, and R represents an alkyl group having from 10 to 30 carbon atoms; or (b) R1 and R2 are independently normal alkyl radicals having 3 carbon atoms, and R represents an alkyl group having from 9 to 30 carbon atoms; or 20 (c) R1 and R2 are independently normal alkyl radicals having from 4 to 20 carbon atoms and R represents an alkyl group having from 6 to 30 carbon atoms.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: February 18, 2014
    Assignee: Rotam Agrochem International Co., Ltd.
    Inventors: Amanda Yin, Sonia Chen, Yifan Wu, Pichumani Narayanamoorthy, Chang Yuan Lo
  • Assisting force control device for bicycle
    Patent number: 8655534
    Abstract: An assisting force control device for use in a bicycle with an electric motor and a crankshaft includes a driving member coupled co-rotatably to the crankshaft, a strain sensor disposed on the driving member, a torque calculation unit coupled to the strain sensor for calculating and outputting a torque signal, a rotational speed detection unit mounted on the crankshaft for outputting a rotational speed detecting signal, and a control unit. The control unit includes a receiving module for receiving the rotational speed detecting signal and the torque signal, and a processing module coupled to the receiving module for generating a force control signal to control the electric motor accordingly.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 18, 2014
    Assignee: China Motor Corporation
    Inventors: Hung-Ching Yang, Chang-Yuan Lin, Wei-Feng Yen, Shi-Chuan Cheng, Kuo-Wei Huang, Yun-Sheng Sung
  • Heat dissipation module for electronic apparatus
    Patent number: 8649178
    Abstract: A heat dissipation module for an electronic apparatus including a heat-generating structure is provided. The heat dissipation module includes a heat dissipation structure and a heat-conducting structure. The heat-conducting structure includes a heat-conducting portion and an extending portion. The heat-conducting portion is adhered between the heat-generating structure and the heat dissipation structure. The heat generated by the heat-generating structure is transmitted to the heat dissipation structure through the heat-conducting portion. The extending portion is connected to the heat-conducting portion and exposed to the heat-generating structure and the heat dissipation structure.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: February 11, 2014
    Assignee: Compal Electronics, Inc.
    Inventors: Ching-Yuan Huang, Chang-Yuan Wu, I-Feng Hsu, Tzu-Chang Chen
  • VIEWER REACTIVE STEREOSCOPIC DISPLAY FOR HEAD DETECTION
    Publication number: 20140028662
    Abstract: An auto stereoscopic display includes a plurality of views thereby providing a perceived three dimensional image to a viewer. The display includes a sensor that determines the position of the viewer with respect to the display and modifies the plurality of views to provide an improved perceived three dimensional image to the viewer.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Applicant: Sharp Laboratories of America, Inc.
    Inventors: Miao LIAO, Chang YUAN
  • LOW DIELECTRIC RESIN COMPOSITION, APPLICABLE COPPER-CLAD LAMINATE AND PRINTED CIRCUIT BOARD
    Publication number: 20140004324
    Abstract: A resin composition includes (A) 100 parts by weight of poly(phenylene oxide) resin with styrene end group; (B) 5 to 75 parts by weight of olefin copolymer; and (C) 1 to 150 parts by weight of cyanate resin with poly(phenylene oxide) functional group. The resin composition is characterized by specific composition and proportion conducive to achieving a low dielectric constant, a low dielectric loss, and a high thermal tolerance and preparing a prepreg or a resin film, thereby being applicable to copper-clad laminates and printed circuit boards.
    Type: Application
    Filed: November 16, 2012
    Publication date: January 2, 2014
    Applicant: ELITE ELECTRONIC MATERIAL (ZHONGSHAN) CO.,LTD.
    Inventors: CHEN-YU HSIEH, CHANG-YUAN LI
  • MEASURING SYSTEM FOR MOBILE THREE DIMENSIONAL IMAGING SYSTEM
    Publication number: 20130331145
    Abstract: A mobile device including an imaging device with a display and capable of obtaining a pair of images of a scene having a disparity between the pair of images. The imaging device estimating the distance between the imaging device and a point in the scene indicated by a user on the display. The imaging device displaying the scene on the display.
    Type: Application
    Filed: June 7, 2012
    Publication date: December 12, 2013
    Applicant: SHARP LABORATORIES OF AMERICA, INC.
    Inventors: Miao LIAO, Chang YUAN