Patents by Inventor Chenfei QIAN

Chenfei QIAN 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: 10660247
    Abstract: An electromagnetic shielding module and a display device are disclosed. The electromagnetic shielding module includes an electromagnetic shielding film and a temperature adjusting circuit, and the temperature adjusting circuit is configured for adjusting a temperature of the electromagnetic shielding film.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: May 19, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Chenfei Qian, Chao Ma, Zhicheng Wang
  • Patent number: 10650729
    Abstract: Embodiments of the present disclosure provide a display driving circuit, a driving method thereof, a display driving system and a display apparatus. The display driving circuit includes a processor and a source driver. The processor is electronically connected to the source driver and configured to receive a low voltage differential signal and to output a data signal for sub-pixels of odd-numbered pixel units and a data signal for sub-pixels of even-numbered pixel units among the low voltage differential signal simultaneously to the source driver progressively.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: May 12, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenfei Qian, Zhicheng Wang
  • Publication number: 20200029476
    Abstract: An electromagnetic shielding module and a display device are disclosed. The electromagnetic shielding module includes an electromagnetic shielding film and a temperature adjusting circuit, and the temperature adjusting circuit is configured for adjusting a temperature of the electromagnetic shielding film.
    Type: Application
    Filed: April 29, 2019
    Publication date: January 23, 2020
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenfei QIAN, Chao MA, Zhicheng WANG
  • Patent number: 10446110
    Abstract: Embodiments of the present disclosure provide a display driving circuit, a driving method thereof, a display driving system and a display apparatus. The display driver circuit comprises a processor, a storage and a grey scale voltage generator. The storage is configured to store at least two gamma curves, wherein each of the at least two gamma curves is associated with a range of temperature. The processor is configured to obtain a current environment temperature, to determine a range to which the current environment temperature belongs based on the current environment temperature; to retrieve the gamma curve associated with the range determined from the storage, and to output the retrieved gamma curve to the grey scale voltage generator.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: October 15, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhicheng Wang, Chenfei Qian, Qingyong Li, Fuliang Sun, Tao Yang
  • Publication number: 20190130816
    Abstract: Embodiments of the present disclosure provide a display driving circuit, a driving method thereof, a display driving system and a display apparatus. The display driving circuit includes a processor and a source driver. The processor is electronically connected to the source driver and configured to receive a low voltage differential signal and to output a data signal for sub-pixels of odd-numbered pixel units and a data signal for sub-pixels of even-numbered pixel units among the low voltage differential signal simultaneously to the source driver progressively.
    Type: Application
    Filed: March 19, 2018
    Publication date: May 2, 2019
    Inventors: Chenfei Qian, Zhicheng Wang
  • Publication number: 20190130864
    Abstract: Embodiments of the present disclosure provide a display driving circuit, a driving method thereof, a display driving system and a display apparatus. The display driver circuit comprises a processor, a storage and a grey scale voltage generator. The storage is configured to store at least two gamma curves, wherein each of the at least two gamma curves is associated with a range of temperature. The processor is configured to obtain a current environment temperature, to determine a range to which the current environment temperature belongs based on the current environment temperature; to retrieve the gamma curve associated with the range determined from the storage, and to output the retrieved gamma curve to the grey scale voltage generator.
    Type: Application
    Filed: March 20, 2018
    Publication date: May 2, 2019
    Inventors: Zhicheng Wang, Chenfei Qian, Qingyong Li, Fuliang Sun, Tao Yang
  • Patent number: 10114456
    Abstract: Embodiments of the present disclosure relate to a sight tracking method and a device, the sight tracking method comprises: determining an observation region where an iris center of a to-be-tested iris image is located according to a target model; modifying a prediction region by using the observation region, to obtain a target region, the prediction region being a region where the iris center of the to-be-tested iris image is located determined by a kalman filtering method; and determining a position of fixation point of human eyes on a screen according to the target region.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: October 30, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenfei Qian, Kening Zhao
  • Patent number: 9886400
    Abstract: The present invention provides a communication system comprising a host computer, control cabinets and peripheral devices, the control cabinets comprising serial ports used for communication among the peripheral devices and the host computer. The operating period of the communication system includes a polling phase and a free communication phase, in the polling phase the host computer sends query instructions to the control cabinets through the serial ports on each of the control cabinets, and in the free communication phase the control cabinets communicate with corresponding peripheral devices through the serial ports. The present invention also provides a communication method for the communication system. Using the communication system of the present invention, reliability of communication among the control cabinets, the host computer and the peripheral devices through a same serial port can be ensured without increasing hardware volume and costs of the communication system.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: February 6, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE SPECIAL DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Yuewei Zheng, Lijun Su, Chenfei Qian
  • Publication number: 20170031437
    Abstract: Embodiments of the present disclosure relate to a sight tracking method and a device, the sight tracking method comprises: determining an observation region where an iris center of a to-be-tested iris image is located according to a target model; modifying a prediction region by using the observation region, to obtain a target region, the prediction region being a region where the iris center of the to-be-tested iris image is located determined by a kalman filtering method; and determining a position of fixation point of human eyes on a screen according to the target region.
    Type: Application
    Filed: May 26, 2016
    Publication date: February 2, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenfei QIAN, Kening ZHAO
  • Patent number: 9462266
    Abstract: Embodiments of the disclosure provide a display apparatus, a display apparatus fault analysis system and a display apparatus fault analysis method. The display apparatus fault analysis system comprises a display apparatus and a server. The display apparatus comprises: a display chip configured to generate a target video or a target image according to a display instruction; an image capturer configured to capture the target image; a detection unit configured to, upon receipt of a fault detection instruction, send the display instruction to the display chip, compare the target image frame or the target image with a predetermined reference image to obtain a difference between the target image frame or the target image and the predetermined reference image, and generate a fault code based on the difference; and a communication module configured to transmit the fault code to a server.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: October 4, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chenfei Qian, Yuewei Zheng, Guanghui Li
  • Publication number: 20160112702
    Abstract: Embodiments of the disclosure provide a display apparatus, a display apparatus fault analysis system and a display apparatus fault analysis method. The display apparatus fault analysis system comprises a display apparatus and a server. The display apparatus comprises: a display chip configured to generate a target video or a target image according to a display instruction; an image capturer configured to capture the target image; a detection unit configured to, upon receipt of a fault detection instruction, send the display instruction to the display chip, compare the target image frame or the target image with a predetermined reference image to obtain a difference between the target image frame or the target image and the predetermined reference image, and generate a fault code based on the difference; and a communication module configured to transmit the fault code to a server.
    Type: Application
    Filed: June 15, 2015
    Publication date: April 21, 2016
    Inventors: Chenfei Qian, Yuewei Zheng, Guanghui Li
  • Publication number: 20160026584
    Abstract: The present invention provides a communication system comprising a host computer, control cabinets and peripheral devices, the control cabinets comprising serial ports used for communication among the peripheral devices and the host computer. The operating period of the communication system includes a polling phase and a free communication phase, in the polling phase the host computer sends query instructions to the control cabinets through the serial ports on each of the control cabinets, and in the free communication phase the control cabinets communicate with corresponding peripheral devices through the serial ports. The present invention also provides a communication method for the communication system. Using the communication system of the present invention, reliability of communication among the control cabinets, the host computer and the peripheral devices through a same serial port can be ensured without increasing hardware volume and costs of the communication system.
    Type: Application
    Filed: July 31, 2014
    Publication date: January 28, 2016
    Inventors: Yuewei ZHENG, Lijun SU, Chenfei QIAN