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).

  • Patent number: 9332627
    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: Grant
    Filed: August 5, 2013
    Date of Patent: May 3, 2016
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Jia-Yu Hung, Chang-Yuan Wu, I-Feng Hsu, Ting-Wei Hsu
  • Patent number: 9305226
    Abstract: The accuracy of a text recognition process can be improved using a set of semantic boosting rules, as may be contained in a sequence or other such arrangement. When text is output from a text recognition process, that text can have alternatives and confidence values for different characters or portions of the string. In order to improve the accuracy, this data can be processed using the organized rules, where rules are applied as long as any preconditions for that rule are satisfied, and each rule has the ability to modify the confidence values or modify one or more of the alternatives. When a result it produced with a minimum confidence level, or all applicable rules have been applied, the result can be provided as a refined text output of the recognition process.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: April 5, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Chang Yuan, Geoffrey Scott Heller, Louis LeRoi LeGrand, III, Daniel Bibireata, Neil Cooper, Laura Varnum Finney, Saurabh Verma
  • Patent number: 9298980
    Abstract: Various embodiments provide an image pre-processing method to accelerate image computing tasks. For example, an image is obtained from a camera of a portable computing device. Salient features of the image are identified by a number of techniques, such as identifying feature points, identifying gradients within the image, and other techniques and methods discussed herein. Based at least in part on the identified salient features, a saliency map of the image is computed. The saliency map includes a saliency value for each of at least a portion of the plurality of pixels. In this example pixels above a threshold saliency value are processed with an optical character recognition engine.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: March 29, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Chang Yuan, Geoffrey Scott Heller
  • Patent number: 9238733
    Abstract: A halogen-free resin composition includes 100 parts by weight of epoxy resin; 10 to 100 parts by weight of benzoxazine resin; 10 to 100 parts by weight of styrene-maleic anhydride copolymer; and 10 to 90 parts by weight of dicyclopentadiene phenol novolac resin. The halogen-free resin composition features specific ingredients and proportions thereof to attain low dielectric constant (Dk), low dielectric dissipation factor, high heat resistance and high non-flammability and produce prepregs or resin film, and is thus applicable to copper clad laminates and printed circuit boards.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 19, 2016
    Assignee: ELITE ELECTRONIC MATERIAL (ZHONGSHAN) CO., LTD.
    Inventors: Chang-Yuan Li, Li-Ming Chou, Li-Chih Yu, Tse-An Lee
  • Patent number: 9226427
    Abstract: A docking station suitable for a portable electronic device includes a base, a supporting component and a first fan. The base includes an airflow guiding slope. The supporting component is disposed on the base and has an airflow guiding structure, in which the portable electronic device is configured to be supported on the supporting component. The first fan is disposed in the base and provides a cooling airflow, in which the airflow guiding slope and the airflow guiding structure guide the cooling airflow to flow into the portable electronic device.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: December 29, 2015
    Assignee: COMPAL ELECTRONICS, INC.
    Inventors: Chung-Luen Liu, Jenq-Haur Pan, Chang-Yuan Wu, Ching-Ya Tu, Ching-Chung Chen
  • Patent number: 9187635
    Abstract: A halogen-free resin composition includes (A) 100 parts by weight of epoxy resin; (B) 10 to 100 parts by weight of styrene-maleic anhydride (SMA) copolymer; and (C) 5 to 50 parts by weight of bisphenol S. The halogen-free resin composition includes specific ingredients, and is characterized by specific proportions thereof, to thereby achieve a high glass transition temperature, high heat resistance, and attractive appearance, and thus is suitable for producing a prepreg or resin film to thereby be applicable to copper clad laminates and printed circuit boards.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 17, 2015
    Assignee: ELITE ELECTRONIC MATERIAL (ZHONGSHAN) CO., LTD.
    Inventors: Chang-Yuan Li, Yi-Jen Chen, Hong-Xia Peng
  • Patent number: 9185801
    Abstract: A halogen-free resin composition includes (A) 100 parts by weight of epoxy resin; (B) 2 to 15 parts by weight of oxydianiline (ODA); and (C) 2 to 20 parts by weight of amino triazine novolac (ATN) resin. The halogen-free resin composition includes specific ingredients, and is characterized by specific proportions thereof, to thereby achieve a low dielectric constant, a low dielectric dissipation factor, high heat resistance, and high flame retardation, and thus is suitable for producing a prepreg or resin film to thereby be applicable to copper clad laminates and printed circuit boards.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 10, 2015
    Assignee: ELITE ELECTRONIC MATERIAL (ZHONGSHAN) CO., LTD
    Inventors: Chang-Yuan Li, Li-Chih Yu, Hong-Xia Peng
  • Patent number: 9177224
    Abstract: Various embodiments utilize geometric hashing to automatically recognize and track and an object. For example, a user can capture an image of a product, or other object, and a point detection algorithm can identify particular features of the product and designate feature points of the product within the captured image. Hash values are then determined for each feature point by determining a basis for the image and determining the location of each feature point relative to that basis. A hash table including the identified hash values is then created and compared to hash values for either a stored product when performing object recognition or from a reference image when performing object tracking.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 3, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Geoffrey Scott Heller, Chang Yuan
  • Patent number: 9160993
    Abstract: Approaches enable the projection of one or more visual elements, such as one or more dynamically changing graphical elements, that can substantially bound, or otherwise at least partially surround or identify, an object recognized by a computing device. The computing device can project the graphical elements to collectively appear as a bounding element for the recognized/actionable object or object portion. As such, the graphical elements can appear as a bounding element that adorns, decorates, highlights, and/or emphasizes, etc., the recognized/actionable object or object portion. The graphical elements to be dynamic. For example, the graphical elements can be projected to move around individually over time, while still appearing to at least partially surround the recognized/actionable object or object portion. Further, the graphical elements can be used to improve various object recognition approaches.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: October 13, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Christopher John Lish, Geoffrey Scott Heller, Jim Oommen Thomas, Chang Yuan, Oleg Rybakov
  • Publication number: 20150276887
    Abstract: A method of estimating state of health (SOH) of a battery includes measuring an internal resistance (R) of the battery and calculating a voltage drop (?V) value by a relationship of ?V=R×I, wherein the I value is equal to a preset current lower limit value at the available capacity of the battery. Then measuring an open circuit voltage (OCV) lower limit value by the ?V value and obtaining a state of charge lower limit (SOC—1) from a correlation table of an OCV and a SOC of the battery. Finally, calculating a SOH value by a relationship of SOH=100%?SOC—1. The present disclosure also discloses an apparatus for estimating SOH of a battery.
    Type: Application
    Filed: October 28, 2014
    Publication date: October 1, 2015
    Inventors: CHANG-YUAN SHIH, HSIEN-HSI JUAN
  • Publication number: 20150226811
    Abstract: A method for estimating an internal resistance of a battery pack is disclosed. The method includes the steps of: detecting a terminal voltage and a charging current of the battery pack when a current constant charging to the battery pack is executed; estimating an initial state-of charge (SOC) of the battery pack at the time of starting the current constant charging of the battery pack; estimating an initial open-circuit voltage based on the initial SOC by referring to a relationship between the SOC and the open-circuit voltage; and calculating the internal resistance based on the initial open-circuit voltage, the terminal voltage, and the charging current.
    Type: Application
    Filed: December 29, 2014
    Publication date: August 13, 2015
    Inventors: CHANG-YUAN SHIH, HSIEN-HSI JUAN
  • Publication number: 20150214756
    Abstract: A charging control apparatus for a battery pack having a plurality of rechargeable batteries connected in series is disclosed. The charging control apparatus includes a charging unit, a current detecting unit, a voltage detecting unit, and a controlling unit. The charging unit is configured to charge the battery pack by either current constant charging or voltage constant charging. The current detecting unit is configured to detect a charging current of the battery pack in real time. The voltage detecting unit is configured to detect a voltage of each of the plurality of rechargeable batteries in real time. The controlling unit is configure to control the charging unit to switch between the current constant charging and the voltage constant charging in response to the detected charging current and the detected voltages of the plurality of rechargeable batteries. A charging control method for a battery pack is also provided.
    Type: Application
    Filed: December 29, 2014
    Publication date: July 30, 2015
    Inventors: CHANG-YUAN SHIH, HSIEN-HSI JUAN
  • Patent number: 9092842
    Abstract: A system for identifying a repair cut location for a defect in a liquid crystal device includes receiving an input image, a defect mask image, and a landmark structure image. The system determines a repair cut location, based upon the input image, the defect mask image, and the landmark structure image, for a liquid crystal device proximate the defect. The determination may be based upon a type of said defect, a cause of said defect, a position of said defect, and a spatial relationship of the defect and a structure of the landmark image.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: July 28, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xinyu Xu, Chang Yuan
  • Patent number: 9058644
    Abstract: Various embodiments enable regions of text to be identified in an image captured by a camera of a computing device for preprocessing before being analyzed by a visual recognition engine. For example, each of the identified regions can be analyzed or tested to determine whether a respective region contains a quality associated with poor text recognition results, such as poor contrast, blur, noise, and the like, which can be measured by one or more algorithms. Upon identifying a region with such a quality, an image quality enhancement can be automatically applied to the respective region without user instruction or intervention. Accordingly, once each region has been cleared of the quality associated with poor recognition, the regions of text can be processed with a visual recognition algorithm or engine.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: June 16, 2015
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: David Paul Ramos, Chang Yuan, Keith Harrison Goodman, Avnish Sikka
  • Patent number: 9058536
    Abstract: Various embodiments enable a computing device to capture multiple images (or video) of text and provide at least a portion of the same to a recognizer to separately recognize text from each image. Each of the recognized outputs will typically include one or more text strings for each image. Substrings common to each of the one or more text strings are computed and compared to each text string within each image to determine an alignment consensus for each substring within the text. A template string is generated that includes each common substring in a position corresponding to a determined alignment for a respective substring. A character frequency vote is then applied to unresolved portions and the final text string is determined by filling the unresolved spaces with the character having the highest occurrence rate for a respective space.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: June 16, 2015
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Chang Yuan, Geoffrey Scott Heller, Louis L. LeGrand, III, Daniel Bibireata
  • Patent number: 9053391
    Abstract: A method for classification of samples comprising providing a trained statistical model based upon a set of initial samples. Receiving a set of first samples and training a first statistical model base upon the first set of samples, where the first statistical model is of the same class as the trained statistical model. Receiving a set of second samples and training a second statistical model base upon the second set of samples, where the second statistical model is of the same class as the trained statistical model. The trained statistical model, the first statistical model, and the second statistical model, being independent of each other and collectively used to classify another sample.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: June 9, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Fan Wang, Xinyu Xu, Chang Yuan, Petrus J. L. van Beek
  • Patent number: 9013871
    Abstract: An electronic device including a main body, a heat dissipation fan and at least one block is provided. The main body has a side shell and a bottom shell. The side shell has a first air inlet and a first air outlet. The heat dissipation fan is disposed in the main body and has at least one second air inlet and at least one second air outlet. The second air outlet is aligned to the first air outlet. The block is disposed in the main body to form a channel with the bottom shell and the dissipation fan. The channel is extended between the second air inlet and the first air inlet, so as to guide airflow to pass through the first air inlet and the second air inlet sequentially and enter the heat dissipation fan.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 21, 2015
    Assignee: Compal Electronics, Inc.
    Inventors: Hsiang-Tien Wu, Chang-Yuan Wu, Jia-Yu Hung, Kai-Hsiang Tsao
  • Patent number: 9007490
    Abstract: Systems and approaches are provided for obtaining high quality image data from lower resolution and/or lower quality image data. An electronic device can be calibrated comprehensively prior to being provided to a user. The calibrated electronic device can be used to capture image data, image metadata, and other sensor data substantially simultaneously. Super-resolution processing can be applied to the captured image data to obtain higher quality image data than the captured image data, such as image data that corresponds to a higher resolution, has less blur, has less noise, has fewer photometric imperfections, and/or has fewer artifacts.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 14, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Chang Yuan, Richard Howard Suplee, III, Daniel Bibireata, Honghong Peng, Leo Benedict Baldwin, Geoffrey Scott Heller, Wei Li
  • Publication number: 20150098844
    Abstract: A fan module used in an electronic apparatus is provided. The electronic apparatus includes an upper cover and a lower cover. The fan module includes a fan housing, a fixing shaft, a bearing, and a fan body. The fan housing is mounted on the lower cover. The fixing shaft includes a first end and a second end. The first end is mounted on the fan housing. The second end passes out of the fan housing. The bearing includes a first ring and a second ring. The first ring is pivotally connected to the second ring. The first ring is disposed around the outer edge of the fixing shaft. The fan body is disposed around the outer edge of the second ring, so as to rotate relative to the fixing shaft.
    Type: Application
    Filed: May 11, 2014
    Publication date: April 9, 2015
    Applicant: COMPAL ELECTRONICS, INC.
    Inventors: I-Feng HSU, Chang-Yuan WU, Chih-Chin CHIEN
  • Patent number: 8995747
    Abstract: Aspects of the present invention are related to systems, methods and apparatus for image-based automatic detection of a defective area in a flat panel display and classification of the defect type and the cause of the detected defect.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 31, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Xinyu Xu, Chang Yuan, Masakazu Yanase