Patents by Inventor Jiajun Gu

Jiajun Gu 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: 11175998
    Abstract: An information processing apparatus performs a backup process to store backup target data on a deduplication storage device configured to eliminate duplicate storage by referring to previously stored data having the same content. The apparatus includes a calculation unit configured to calculate the capacity after deduplication that is performed by storing the backup target data in the deduplication storage device, each time the backup process is performed, and a determination unit configured to determine whether the backup target data is normal or abnormal, based on the capacity calculated each time the backup process is performed.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: November 16, 2021
    Assignee: NEC CORPORATION
    Inventor: Jiajun Gu
  • Patent number: 10568601
    Abstract: A radiography system for imaging an object, comprises a radiation source located in a first side of the object for generating a plurality of beams; a detector located in a second side of the object for detecting the plurality of beams from the radiation source. The radiography system comprises a first sensor located in the first side of the object for obtaining an object related information and a second sensor disposed on the detector for obtaining a detector-position related information. The radiography system further comprises a controller configured to reconstruct a 3D scene based on the object related information obtained by the first sensor and the detector-position related information obtained by the second sensor and control an operation of at least one of the radiation source and the detector based on the reconstructed 3D scene. A method of controlling the radiography system is also disclosed.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: February 25, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John Eric Tkaczyk, Feng Pan, Jiajun Gu, Zirong Zhai
  • Patent number: 10517562
    Abstract: A mobile radiography system is disclosed, which includes a radiation source for radiating a plurality of beams; a detector for detecting the plurality of beams from the radiation source; a controller for determining an angular difference between the radiation source and the detector; and a positioning device mounted with the radiation source for recognizing a position of the detector relative to the radiation source based on the angular difference between the radiation source and the detector to align the radiation source to the detector. A method of aligning a mobile radiography system including a radiation source and a detector is also disclosed.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: December 31, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Jiajun Gu, Hao Lai, Li Tao, Hao Xu, Kun Tao
  • Publication number: 20190076106
    Abstract: A radiography system for imaging an object, comprises a radiation source located in a first side of the object for generating a plurality of beams; a detector located in a second side of the object for detecting the plurality of beams from the radiation source. The radiography system comprises a first sensor located in the first side of the object for obtaining an object related information and a second sensor disposed on the detector for obtaining a detector-position related information. The radiography system further comprises a controller configured to reconstruct a 3D scene based on the object related information obtained by the first sensor and the detector-position related information obtained by the second sensor and control an operation of at least one of the radiation source and the detector based on the reconstructed 3D scene. A method of controlling the radiography system is also disclosed.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 14, 2019
    Inventors: John Eric Tkaczyk, Feng Pan, Jiajun Gu, Zirong Zhai
  • Publication number: 20180253358
    Abstract: An information processing apparatus performs a backup process to store backup target data on a deduplication storage device configured to eliminate duplicate storage by referring to previously stored data having the same content. The apparatus includes a calculation unit configured to calculate the capacity after deduplication that is performed by storing the backup target data in the deduplication storage device, each time the backup process is performed, and a determination unit configured to determine whether the backup target data is normal or abnormal, based on the capacity calculated each time the backup process is performed.
    Type: Application
    Filed: January 11, 2018
    Publication date: September 6, 2018
    Applicant: NEC Corporation
    Inventor: Jiajun GU
  • Publication number: 20180092619
    Abstract: A mobile radiography system is disclosed, which includes a radiation source for radiating a plurality of beams; a detector for detecting the plurality of beams from the radiation source; a controller for determining an angular difference between the radiation source and the detector; and a positioning device mounted with the radiation source for recognizing a position of the detector relative to the radiation source based on the angular difference between the radiation source and the detector to align the radiation source to the detector. A method of aligning a mobile radiography system including a radiation source and a detector is also disclosed.
    Type: Application
    Filed: September 28, 2017
    Publication date: April 5, 2018
    Inventors: Jiajun Gu, Hao Lai, Li Tao, Hao Xu, Kun Tao
  • Publication number: 20150319410
    Abstract: The borescope includes an insertion tube, a first image processor, a model store unit, a pose calculator, a second image processor, a navigation image calculator and a display. The insertion tube includes a detection head and at least one sensor for receiving signals in the insertion tube and generating sensed signals. The first image processor is for calculating a first image based on first image signals captured by the detection head. The second image processor is for adjusting the initial pose calculated by the pose calculator to a navigation pose until a difference between the first image and a second image calculated based on the navigation pose and a predetermined model falls in an allowable range. The navigation image calculator is for calculating a navigation image based on the navigation pose and the predetermined model. The display is for showing the navigation image.
    Type: Application
    Filed: April 15, 2015
    Publication date: November 5, 2015
    Inventors: Jiajun GU, Yong YANG, Jie HAN, Zirong ZHAI, Kevin George HARDING, Guiju SONG, Ming JIA, Guangping Xie, Ser Nam Lim
  • Publication number: 20150302021
    Abstract: A storage system of the present invention includes: a storage device for storing division data configuring a file, and also storing address data referring to the division data or other address data; and a data storage controlling unit for, when the division data or the other address data to be newly stored has a same data content as data already stored in the storage device, controlling to refer to the data already stored in the storage device as the division data or the other address data to be newly stored, by using the address data. The data storage controlling unit includes an address data acquiring unit for acquiring address data of a copy target file based on file specification information, and an address data set-up unit for setting up the acquired address data in the storage device so that the copy target file is stored in a copy destination directory.
    Type: Application
    Filed: January 18, 2012
    Publication date: October 22, 2015
    Applicants: NEC Software Tohoku, Ltd., NEC Corporation
    Inventors: Jiajun GU, Noriyuki WATANABE, Tomoya KAWAKITA
  • Publication number: 20140238119
    Abstract: A method for obtaining an edge prep profile of a cutting tool with a point sensor. The method includes: (a) scanning edge points of the cutting tool, including a target edge point on a target edge, with the point sensor, by rotating the cutting tool around its axis, to generate a first point cloud; (b) repositioning the point sensor and cutting tool relative to each other based on the location and orientation information of the target edge point, such that the sensor focus is at a region of interest containing the target edge point; and (c) scanning the region of interest using the point sensor to generate a second point cloud. The first point cloud includes location and orientation information of the target edge point. The second point cloud includes information for edge profile analysis.
    Type: Application
    Filed: August 29, 2012
    Publication date: August 28, 2014
    Inventors: Xiaoming Du, Kevin George Harding, Howard Paul Weaver, James Allen Baird, Kevin William Meyer, Jiajun Gu