Patents by Inventor Qin Zhang

Qin Zhang 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 for determining lightning hazard distribution of power network
    Patent number: 9360352
    Abstract: A method for determining a lightning hazard distribution of a power network, includes: deriving a shielding failure lightning hazard distribution of the power network and a back flashover lightning hazard distribution of the power network from the number of ground lightning in each grid and ranges of hazardous currents, and deriving a historical lightning hazard distribution of the power network from a lightning faults database of the power network and the grids; and determining the lightning hazard distribution of the power network by integrating the shielding failure lightning hazard distribution of the power network, the back flashover lightning hazard distribution of the power network and the historical lightning hazard distribution of the power network.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 7, 2016
    Assignees: Wuhan NARI Limited Company of State Grid Electric Power Research Institute, State Grid Electric Power Research Institute, North China Electric Power Research Institute Co., Ltd.
    Inventors: Jiahong Chen, Jian Wang, Xuefang Tong, Yaxin Liu, Qin Zhang, Yi Luo, Haitao Wang, Wanxing Feng, Shanqiang Gu, Xiaolan Li
  • COMMUNICATION METHOD AND COMMUNICATION DEVICE USING SAME
    Publication number: 20160156875
    Abstract: A communication method is provided. The method includes: receiving, at a communication device, a first video frame of a communicating party which is in a communication with the communication device; obtaining, at the communication device, a second video frame of the local party through a camera; identifying, at the communication device, an outline of a user in the second video frame; cropping, at the communication device, a part of the second video frame beside the outline of the user to generate a third video frame which includes only images inside the outline of the user; combining, at the communication device, the third video frame with the first video frame of the communicating party to generate a fourth video frame; and displaying, at the communication device, the fourth video frame.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Inventor: XUE-QIN ZHANG
  • METHOD FOR SYNTHESIZING NANO-LITHIUM IRON PHOSPHATE WITHOUT WATER OF CRYSTALLIZATION IN AQUEOUS PHASE AT NORMAL PRESSURE
    Publication number: 20160145103
    Abstract: A method for synthesizing nano-lithium iron phosphate without water of crystallization in aqueous phase at normal pressure, which is part of a preparation method for a lithium ion positive electrode material. The preparation process comprises the following steps: preparing lithium phosphate, preparing an aqueous phase suspension of lithium phosphate, preparing a ferrous salt solution, preparing nano-lithium iron phosphate without water of crystallization, and recovering and recycling lithium in a mother solution of lithium iron phosphate. The present invention has the beneficial effects of mild reaction conditions, a short time, low energy consumption, reduced costs due to the recovery and recycling of lithium in the mother solution, stable batches, uniform and controllable strength, and being conducive to industrial production.
    Type: Application
    Filed: March 5, 2014
    Publication date: May 26, 2016
    Inventors: Nanping LI, Guoduan HE, Qin ZHANG, Yanfeng JIANG
  • Computing device and method for processing music
    Patent number: 9336763
    Abstract: A computing device converts each input signal corresponding to a key of a music keyboard into a tone of the musical instrument associated with the key. The computing device outputs each tone of the musical instrument using an audio device connected to the computing device. The computing device converts each tone of the musical instrument into a note and stores the note into a musical score.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: May 10, 2016
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Xue-Qin Zhang
  • COMPUTING DEVICE AND METHOD FOR PROCESSING MUSIC
    Publication number: 20160118030
    Abstract: A computing device converts each input signal corresponding to a key of a music keyboard into a tone of the musical instrument associated with the key. The computing device outputs each tone of the musical instrument using an audio device connected to the computing device. The computing device converts each tone of the musical instrument into a note and stores the note into a musical score.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 28, 2016
    Inventor: XUE-QIN ZHANG
  • Ranking search results based on word weight
    Patent number: 9317591
    Abstract: Ranking search results, comprises retrieving search results that include target strings that relate to a query string; segmenting the query string and each of the target strings; pairing segments in the query string with respective segments in the target strings to form combinations; retrieving weights that correspond to the combinations; and determining a weighted word length based on the weights corresponding to each of the target strings; and ranking the target strings based on their respective weighted word lengths. Alternatively, ranking search results includes determining a minimum weight of each inserted word with respect to segments in the query string; determining a minimum weight of each deleted word with respect to segments in the target strings; determining a total edit distance for each target string; and ranking the target strings based on the total edit distances.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: April 19, 2016
    Assignee: Alibaba Group Holding Limited
    Inventors: Yuheng Xie, Fei Xing, Ning Guo, Lei Hou, Qin Zhang
  • Enhancement to PLMN selection process while roaming
    Patent number: 9277492
    Abstract: A method and apparatus for a mobile wireless device configured to adaptively scan for a preferred wireless network while roaming is described. In one embodiment, at least a portion of a database including characteristic information regarding wireless networks can be stored within the mobile wireless device. Network characteristic information can include mobile country codes, mobile network codes, location area codes and cell-IDs. When the mobile wireless device is connected to a network that is not a preferred network, the mobile wireless device can use the database information in conjunction with characteristics from a connected wireless network to determine when to scan for the preferred wireless network.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: March 1, 2016
    Assignee: Apple Inc.
    Inventors: Ben-Heng Juang, Qin Zhang, Ravi Ayyappan
  • NRF2 SMALL MOLECULE INHIBITORS FOR CANCER THERAPY
    Publication number: 20160046616
    Abstract: Small molecule inhibitors of Nrf2 and methods of their use are provided for treating or preventing a disease, disorder or condition associated with an Nrf2-regulated pathway. The compound can be administered as a single agent or can be administered to enhance the efficacy of a chemotherapeutic drug and/or radiation therapy.
    Type: Application
    Filed: March 17, 2014
    Publication date: February 18, 2016
    Applicants: THE JOHNS HOPKINS UNIVERSITY, THE NATIONAL INSTITUTES OF HEALTH, SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE
    Inventors: SHYAM S. BISWAL, ANJU SINGH, FRAYDOON RASTINEJAD, MIN SHEN, MATTHEW B. BOXER, YA-QIN ZHANG, JASON M. ROHDE, KYU OH, SREEDHAR VENKANNAGARI
  • Method and apparatus for identifying synonyms and using synonyms to search
    Patent number: 9239880
    Abstract: A method and an apparatus for identifying synonym and utilizing such synonym to conduct search is disclosed. The disclosed method includes: obtaining arbitrary two words to be identified; determining whether a shortest edit distance between the two words less than or equal to an edit distance threshold; determining whether the two words to be identified exist in a preset knowledge database, and if an answer is yes then searching a smallest granularity type with highest weight value for each word in the knowledge database; and if the two word have the same smallest granularity type with highest weight value, then determining such two words are synonyms, or non-synonym otherwise. The disclosed techniques greatly improve accuracy of synonym identification and guarantee effect of synonym identification.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 19, 2016
    Assignee: Alibaba Group Holding Limited
    Inventors: Jing Dong, Fei Xing, Ning Guo, Lei Hou, Qin Zhang
  • Device-Type Specific Preferred PLMN List
    Publication number: 20150351021
    Abstract: Generating and using a device-type specific preferred public land mobile network (PLMN) list for roaming PLMN selection. Wireless devices sharing one or more common characteristics may be tasked with collecting roaming PLMN selection data. That data may be collected and used to generate a preferred PLMN list specific to wireless devices sharing those common characteristics. The preferred PLMN list may be distributed to wireless devices sharing those common characteristics, which may then use it in conjunction with roaming PLMN selection.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 3, 2015
    Applicant: Apple Inc.
    Inventors: Qin Zhang, Madhusudan Chaudhary, Longda Xing, Umesh K. Shukla, Bo Wang, Zhiwei Wang, Yaoqi Yan, Qiang Miao
  • Station and Method for Location Aware Network Selection
    Publication number: 20150351013
    Abstract: A method, station and computer readable storage medium used for location aware network selection. A station determines a geographic location of the station, determines at least one predetermined Public Land Mobile Network (PLMN) in the geographic location by comparing the geographic location to a database including stored geographic locations and PLMNs known to be present within each of the geographic locations, performs a targeted scan on select channels corresponding to the at least one predetermined PLMN to identify at least one available PLMN from among the at least one predetermined PLMN and selects one of the at least one available PLMN for the station to join.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 3, 2015
    Applicant: APPLE INC.
    Inventors: Qin ZHANG, Longda XING, Yifan ZHU, Umesh SHUKLA
  • Targeted PLMN Search
    Publication number: 20150341846
    Abstract: Targeted public land mobile network (PLMN) search by a wireless user equipment (UE) device. A PLMN search may be initiated at the UE. It may be determined whether PLMN search targeting information is available. A targeted PLMN search may be performed if PLMN search targeting information is available. Targeting the PLMN search may include reducing the number of frequencies or frequency bands searched as part of the PLMN search.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 26, 2015
    Applicant: Apple Inc.
    Inventors: Jianxiong Shi, Qin Zhang
  • Robust Regression Analysis Techniques Using Exponential Random Variables
    Publication number: 20150286612
    Abstract: Embodiments relate to methodologies and program product is provided for conducting regression analysis. In one embodiment the method includes obtaining data related to a statistical process including a plurality of points in a plurality of dimensions and organizing the plurality of points and the plurality of dimensions in a matrix. The method also includes calculating a vector of a particular measurement such that the measurement equal the number of the plurality of points and calculating a least absolute deviation by determining the number of non-zero entries provided in the matrix.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 8, 2015
    Applicant: International Business Machines Corporation
    Inventors: David P. Woodruff, Qin Zhang
  • Sampling from distributed streams of data
    Patent number: 9130827
    Abstract: The present disclosure is directed to systems, methods, and computer-readable storage media for sampling from distributed data streams. Data elements are received at site servers configured to collect and report data to a coordinator device. The site servers assign a binary string to each of the data elements. Each bit of the binary strings can be independently set to a 0 or a 1 with a probability of one half. The binary string is used to sample from the received data elements, and the data elements and/or the sampled data elements can be transmitted to a coordinator device. The coordinator device can examine one or more bits of the binary string to draw samples of the received data elements in accordance with desired probabilities.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 8, 2015
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Graham Cormode, Ke Yi, Qin Zhang
  • EXTENSION OF LOCATION STATUS EVENT
    Publication number: 20150230196
    Abstract: A processor in a mobile wireless device communicates detailed state information about attachments to a user identity module card embedded in the mobile wireless device. The processor detects a change in an attach state of the mobile wireless device for at least one of a plurality of attachment types. The processor determines the attach state of the mobile wireless device for each of the plurality of attachment types and sends a status message to the user identity module card indicating the determined attach states. The plurality of attachment types can include at least a circuit switched attachment and a packet switched attachment. The processor can wait until completion of circuit switched and packet switched attachments of the mobile wireless device to the wireless network prior to sending the status message.
    Type: Application
    Filed: April 20, 2015
    Publication date: August 13, 2015
    Inventors: Abhishek SEN, Qin ZHANG
  • INPUT DEVICE AND INPUT MANAGEMENT METHOD
    Publication number: 20150153892
    Abstract: An input management method switches an input mode between a keyboard input mode, a touchpad input mode, a sketchpad input mode, and a handwriting pen input mode in response to user operation on a button. The method controls a touch screen to display an interface corresponding to the input mode. The method detects the user operation in the interface to determine one or more touch positions and a touch motion in the interface. The method further generates a command according to the one or more touch positions, the touch motion, and the input mode, and transmits the command to an information processing device, to cause the information processing device to execute a function corresponding to the command.
    Type: Application
    Filed: September 26, 2014
    Publication date: June 4, 2015
    Inventor: XUE-QIN ZHANG
  • Extension of location status event
    Patent number: 9014092
    Abstract: A processor in a mobile wireless device communicates detailed state information about attachments to a user identity module card embedded in the mobile wireless device. The processor detects a change in an attach state of the mobile wireless device for at least one of a plurality of attachment types. The processor determines the attach state of the mobile wireless device for each of the plurality of attachment types and sends a status message to the user identity module card indicating the determined attach states. The plurality of attachment types can include at least a circuit switched attachment and a packet switched attachment. The processor can wait until completion of circuit switched and packet switched attachments of the mobile wireless device to the wireless network prior to sending the status message.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 21, 2015
    Assignee: Apple Inc.
    Inventors: Abhishek Sen, Qin Zhang
  • Optical switch
    Patent number: 9008484
    Abstract: An N×N switching apparatus for optical components is provided. A switching apparatus includes a first element that provides for a supply of a length of optical fiber in tension and has an interface component for maintaining an end of the optical fiber in tension at a first position. The switching apparatus further includes a second element that has a coupling component for detachably maintaining the end of the optical fiber at a second position. The first and second elements are arranged such that the end of the optical fiber is movable between the first and second elements.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: April 14, 2015
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Qin Zhang, Haiguang Lu
  • System and Method For Ranking Search Results Within Citation Intensive Document Collections
    Publication number: 20150088875
    Abstract: Systems and methods facilitate a search and identify documents and associated metadata reflecting content of the documents. In one implementation, a method receives a query comprising a set of search terms, identifies a stored document in response to the query, and determines a score value for the retrieved document based on a similarity between one or more of the query search terms and metadata associated with the identified document. The method locates the identified document in a citation network of baseline query results, the citation network comprising a first set of documents that cite to the identified document and a second set of documents cited to by the identified document. The method further determines a new score value of the identified document as a function of the score value and a quantity and a quality of documents within the first and second set of documents.
    Type: Application
    Filed: October 7, 2014
    Publication date: March 26, 2015
    Applicant: LexisNexis, a division of Reed Elsevier Inc.
    Inventors: Ling Qin Zhang, Harry R. Silver
  • RANKING SEARCH RESULTS BASED ON WORD WEIGHT
    Publication number: 20150081683
    Abstract: Ranking search results, comprises retrieving search results that include target strings that relate to a query string; segmenting the query string and each of the target strings; pairing segments in the query string with respective segments in the target strings to form combinations; retrieving weights that correspond to the combinations; and determining a weighted word length based on the weights corresponding to each of the target strings; and ranking the target strings based on their respective weighted word lengths. Alternatively, ranking search results includes determining a minimum weight of each inserted word with respect to segments in the query string; determining a minimum weight of each deleted word with respect to segments in the target strings; determining a total edit distance for each target string; and ranking the target strings based on the total edit distances.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 19, 2015
    Inventors: Yuheng Xie, Fei Xing, Ning Guo, Lei Hou, Qin Zhang