Patents by Inventor Zehua Zhou

Zehua Zhou 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: 20220149612
    Abstract: The invention provides a transformer short-circuit protection method and a transformer short-circuit protection device. The transformer short-circuit protection method includes: acquiring output voltages of a plurality of output lines of at least one winding on a low-voltage side of a transformer; and determining a short circuit according to the output voltages, and sending a protection signal when the short circuit is determined.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 12, 2022
    Inventors: Zehua ZHOU, Shengzou YUE, Hongyang WU, Liping SUN, Qianfeng LI
  • Publication number: 20200068347
    Abstract: In an example method, a computer system receives a query from a mobile device, including an indication of a location of the mobile device, and an environmental measurement obtained by the mobile device at the location. A set of candidate points of interest in geographical proximity to the location is determined. For each of one or more candidate points of interest of the set, a location fingerprint of the candidate point of interest and contextual data regarding the candidate point of interest are obtained. A similarity between the environmental measurement and each location fingerprint is determined. A particular candidate point of interest is selected from among the set based on the similarity, and based on an assessment of the contextual data. A label of the selected point of interest is associated with the location and transmitted to the mobile device.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 27, 2020
    Inventors: Richard B. Warren, Danil Yuryevich Zvyagintsev, Michael P. Dal Santo, Liviu T. Popescu, Pejman Lotfali Kazemi, Hyo Jeong Shin, Zehua Zhou
  • Patent number: 10506373
    Abstract: In an example method, a computer system receives a query from a mobile device, including an indication of a location of the mobile device, and an environmental measurement obtained by the mobile device at the location. A set of candidate points of interest in geographical proximity to the location is determined. For each of one or more candidate points of interest of the set, a location fingerprint of the candidate point of interest and contextual data regarding the candidate point of interest are obtained. A similarity between the environmental measurement and each location fingerprint is determined. A particular candidate point of interest is selected from among the set based on the similarity, and based on an assessment of the contextual data. A label of the selected point of interest is associated with the location and transmitted to the mobile device.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 10, 2019
    Assignee: Apple Inc.
    Inventors: Richard B. Warren, Danil Yuryevich Zvyagintsev, Michael P. Dal Santo, Liviu T. Popescu, Pejman Lotfali Kazemi, Hyo Jeong Shin, Zehua Zhou
  • Patent number: 10108748
    Abstract: Crowd-sourced localized application usage data is collected from mobile devices at a usage location and sent to a network-based service. The network-based service analyzes the data to determine a single most relevant application correlated to the usage location. Once the most relevant application is determined, a recommendation for the application is sent to client devices operating at the usage location. In some implementations the data is processed to determine whether the usage location is a chained venue, a large venue or an event. Once the usage location has been determined, the most relevant application can be selected for recommendation.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 23, 2018
    Assignee: Apple Inc.
    Inventors: Lukas M. Marti, Zehua Zhou, Jeffrey Michael Bartunek, Weili Shao, Liviu Teodor Popescu, Lili Cao, Ronald K. Huang
  • Publication number: 20180014161
    Abstract: In an example method, a computer system receives a query from a mobile device, including an indication of a location of the mobile device, and an environmental measurement obtained by the mobile device at the location. A set of candidate points of interest in geographical proximity to the location is determined. For each of one or more candidate points of interest of the set, a location fingerprint of the candidate point of interest and contextual data regarding the candidate point of interest are obtained. A similarity between the environmental measurement and each location fingerprint is determined. A particular candidate point of interest is selected from among the set based on the similarity, and based on an assessment of the contextual data. A label of the selected point of interest is associated with the location and transmitted to the mobile device.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Applicant: Apple Inc.
    Inventors: Richard B. Warren, Danil Yuryevich Zvyagintsev, Michael P. Dal Santo, Liviu T. Popescu, Pejman Lotfali Kazemi, Hyo Jeong Shin, Zehua Zhou
  • Publication number: 20150347437
    Abstract: Crowd-sourced localized application usage data is collected from mobile devices at a usage location and sent to a network-based service. The network-based service analyzes the data to determine a single most relevant application correlated to the usage location. Once the most relevant application is determined, a recommendation for the application is sent to client devices operating at the usage location. In some implementations the data is processed to determine whether the usage location is a chained venue, a large venue or an event. Once the usage location has been determined, the most relevant application can be selected for recommendation.
    Type: Application
    Filed: September 30, 2014
    Publication date: December 3, 2015
    Inventors: Lukas M. Marti, Zehua Zhou, Jeffrey Michael Bartunek, Weili Shao, Liviu Teodor Popescu, Lili Cao, Ronald K. Huang
  • Patent number: 8577610
    Abstract: A method of operation of a navigation system includes: generating an extraction job including a crawl task based on a location of a point of interest and a web form type of a website for harvesting the point of interest from the website; receiving a heartbeat from a distributed cache for determining when a client device is available to execute the extraction job; generating an assignment schedule of the extraction job based on the heartbeat for distributing the extraction job to the client device to retrieve a location-based field; and receiving the location-based field associated with the point of interest for displaying on a monitor device.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: November 5, 2013
    Assignee: Telenav Inc.
    Inventors: Weili Shao, Zehua Zhou, Aliasgar Mumtaz Husain
  • Publication number: 20130198620
    Abstract: Embodiments of the present disclosure provide a method and system for converting a document from a first format to a second format. Embodiments disclosed herein include receiving a request to convert the document from the first format to the second format. The location of the document is then identified and the document is uploaded and converted from the first format to the second format. When the conversion is complete, the document is saved in a second location that was identified in the request. As part of this process, periodic updates to the conversion process are transmitted to a requesting device.
    Type: Application
    Filed: July 24, 2012
    Publication date: August 1, 2013
    Applicant: Microsoft Corporation
    Inventors: Zehua Zhou, Zeyad Rajabi, James Leung, Miguel Gonzalez-Gongora
  • Publication number: 20130166207
    Abstract: A method of operation of a navigation system includes: generating an extraction job including a crawl task based on a location of a point of interest and a web form type of a website for harvesting the point of interest from the website; receiving a heartbeat from a distributed cache for determining when a client device is available to execute the extraction job; generating an assignment schedule of the extraction job based on the heartbeat for distributing the extraction job to the client device to retrieve a location-based field; and receiving the location-based field associated with the point of interest for displaying on a monitor device.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Applicant: TELENAV, INC.
    Inventors: Weili Shao, Zehua Zhou, Aliasgar Mumtaz Husain
  • Publication number: 20070042903
    Abstract: Disclosed is a lanthanum doping catalyst for preparing carbon nanotubes having uniform diameter and producing method thereof. The catalyst comprises magnesium oxide as a support, two or three metal oxides selected from the group consisting of ferric oxide, cobalt oxide, and nickel oxide as a complex metal oxide composite, lanthanum oxide as a lanthanum doping composite, and molybdenum oxide as an enhanced catalytic composite. The catalyst is produced by dissolving magnesium salt into distilled water, and into the solution is added metal salt for forming complex metal oxide composite, lanthanum salt for forming lanthanum doping composite and salt for forming enhanced catalytic composite in a molar ratio of 0.5-3.0:0.1-1.0:0.01-1.0:0.5-3.0. The solution is dissolved completely and dried at 120-200° C. for 3-5 hours. Then, the product is calcinated at 550-850° C. for 10-30 minutes and grind to be a fine powder.
    Type: Application
    Filed: August 18, 2005
    Publication date: February 22, 2007
    Inventors: Dehuan Huang, Xinhua Shi, Fanzhi Kong, Jianshe Ding, Zehua Zhou