Patents by Inventor Jian Gao

Jian Gao 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: 11048414
    Abstract: A method and apparatus for managing data access comprises: receiving a write request for writing data into one or more storage blocks; in response to determining that a storage block is unavailable, writing a part of the data into a virtual storage block corresponding to the storage block, the part of the data being required to be written into the storage block; and in response to determining that the storage block becomes available, copying the part of the data from the virtual storage block to the storage block. The embodiments of the present disclosure further disclose a corresponding apparatus. By introducing the virtual storage blocks in the data access, the embodiments of the present disclosure can realize the parallel data transfers of a plurality of writes and thus greatly improve the data writing performance of the system.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: June 29, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Ruiyong Jia, Jian Gao, Lifeng Yang, Xinlei Xu, Jibing Dong
  • Patent number: 11048422
    Abstract: Embodiments of the present disclosure relate to a method, device and computer readable medium for managing storage. The method comprises: in response to obtaining, at a first storage processor, an access request for a storage unit, determining whether the storage unit is currently accessible, the storage unit including at least one storage area. The method further comprises: in response to the storage unit being currently inaccessible, determining whether the first storage processor has an access right to the storage unit. In addition, the method further comprises: in response to the first storage processor having no access right, requesting a second storage processor for the access right, the second storage processor being associated with a mirror storage unit of the storage unit, and the first and second storage processors having exclusive write access rights.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: June 29, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Yousheng Liu, Jian Gao, Xinlei Xu, Lifeng Yang, Changyu Feng
  • Patent number: 11035998
    Abstract: A light guide structure is disclosed. The light guide structure includes a first waveguide layer having a first light incident surface and a first light exiting surface. The light guide structure includes a polarization beam-splitting structure on the first light exiting surface, configured to split light into first polarized light and second polarized light. The light guide structure includes a first polarization coupling grating disposed on the first light incident surface and configured to deflect the first polarized light, and a second waveguide layer having a second light incident surface and a second light exiting surface and disposed on the polarization beam-splitting structure. The light guide structure includes a second polarization coupling grating disposed between the second light incident surface and the polarization beam-splitting structure and configured to deflect the second polarized light.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 15, 2021
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Xiandong Meng, Wei Wang, Xiaochuan Chen, Jifeng Tan, Jian Gao, Xianqin Meng, Pengxia Liang
  • Publication number: 20210173742
    Abstract: In techniques for selecting a rebuild destination in a storage system, a failed stripe group associated with a failed extent group in a failed storage device among storage devices is detected. A group of normal storage devices other than the failed storage device is determined. Regarding a normal storage device in the group of normal storage devices, a first count for the normal storage device is obtained, the first count representing a number of failed stripes which are allowed to be rebuilt to the normal storage device in the failed stripe group. Based on the first count, a destination storage device is selected from the group of normal storage devices for rebuilding a failed stripe in the failed stripe group. During rebuild, a destination for rebuilding the failed stripe may be effectively selected, and extents in reserved space in the storage system may be more fully utilized.
    Type: Application
    Filed: July 23, 2020
    Publication date: June 10, 2021
    Inventors: Baote Zhuo, Jian Gao, Lifeng Yang, Xinlei Xu, Jibing Dong
  • Publication number: 20210165241
    Abstract: A display switching device, a display device and an electronic device are provided. The display switching device includes: a controller; and a lens array, including a plurality of diffractive lenticular lenses, wherein each of the diffractive lenticular lenses includes: a first substrate, including a diffraction phase grating array; a liquid crystal element, including liquid crystal being filled in the diffraction phase grating array; a first electrode layer and a second electrode layer configured to apply a voltage to the liquid crystal element, wherein the controller is configured to acquire a corresponding display mode and apply a control voltage corresponding to the display mode to the first electrode layer and the second electrode layer according to the display mode to change a refractive index state of the liquid crystal element.
    Type: Application
    Filed: October 24, 2017
    Publication date: June 3, 2021
    Inventors: Jian GAO, Xue DONG, Xiaochuan CHEN, Yafeng YANG, Pengcheng LU, Wei WANG, Xinli MA
  • Publication number: 20210166981
    Abstract: The disclosure relates to a method for repairing an internal circuit break defect in a chip, including: S1, detecting the defect position of the chip and the type and performance parameters of a filling material; S2, positioning the chip on a two-dimensional motion platform; S3, setting parameters of two beams of laser; adjusting a focal length of the two beams of laser three-dimensional incident angle and a Z axis, so that a focus point of the two beams of laser irradiate any end of the circuit break of the chip; S4, the two-dimensional motion platform drives the chip to move, so that the focus point of the two beams of laser is moved to an other end of the circuit break, and an moving trajectory of the focus point of the two beams of laser feeds through the two ends of the circuit break of the chip.
    Type: Application
    Filed: September 30, 2020
    Publication date: June 3, 2021
    Inventors: Yun CHEN, Yao YAO, Shuquan DING, Junyu LONG, Maoxiang HOU, Dachuang SHI, Xin CHEN, Jian GAO, Qiang LIU, Lanyu ZHANG, Yunbo HE, Shenghui ZHANG, Zhengping WANG
  • Publication number: 20210165270
    Abstract: In the disclosure there is provided a reflective photonic crystal color film, a display device using the same and a fabricating method therefor. The reflective photonic crystal color film includes a substrate and a two-dimensional photonic crystal structure formed on and periodically distributed over a surface of the substrate, wherein the two-dimensional photonic crystal structure comprises material containing silicon.
    Type: Application
    Filed: September 22, 2017
    Publication date: June 3, 2021
    Inventors: Xianqin MENG, Yafeng YANG, Jing LV, Xiaochuan CHEN, Wei WANG, Jifeng TAN, Xiandong MENG, Yunyun TIAN, Jian GAO
  • Patent number: 11023147
    Abstract: Techniques for mapping large storage extents (“ubers”) into storage drive groups (“resiliency groups”) in a data storage system. The techniques can include, as the capacity of storage drives included in a first resiliency group is used up, forming a second resiliency group with one or more new storage drives. The disclosed techniques can further include allocating one or more storage drives from the first resiliency group to the second resiliency group to satisfy a requirement of a predetermined RAID storage configuration, and performing a reduced number of data movement operations to assure that data slices of one or more ubers initially assigned to the first resiliency group are allocated to storage drives in the same first or second resiliency group. In this way, data storage systems can be made to support a desired storage drive expansion with a reduced number of new storage drives.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: June 1, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Rongrong Shang, Geng Han, Jian Gao, Xinlei Xu, Xiaobo Zhang, Shuyu Lee
  • Patent number: 11024688
    Abstract: A pixel structure is disclosed. The pixel structure includes a plurality of sub-pixel groups arranged in an array, wherein each sub-pixel group is constituted by 6 sub-pixels of different colors arranged in two rows and three columns respectively. In each row of the sub-pixels, a square pixel unit is constituted by at most two adjacent sub-pixels. The present application further discloses a display panel and a driving method of said pixel structure.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: June 1, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengcheng Lu, Xue Dong, Xiaochuan Chen, Wenqing Zhao, Lei Wang, Ming Yang, Qian Wang, Rui Xu, Jian Gao, Xiaochen Niu, Haisheng Wang, Shengji Yang, Changfeng Li
  • Publication number: 20210156321
    Abstract: The present invention relates to a diesel methanol combined combustion engine, comprising: a diesel engine, a methanol injection system, a methanol electronic control unit, a methanol supply system and a post-processor combination. The methanol injection system is on an inlet pipe of the diesel engine, which is connected with the methanol electronic control unit and the methanol supply system. The Methanol specific SCR system and the DPF are controlled by the methanol electronic control unit. The post-processor combination is installed on the exhaust pipe. The DMCC technology can achieve high efficiency combustion of the diesel engine, in particular, improving the thermal efficiency of engines especially under medium and full load conditions, and reducing NOx and soot emissions without urea assistance. The invention also relates to a control method of the diesel methanol combined combustion engine.
    Type: Application
    Filed: January 31, 2021
    Publication date: May 27, 2021
    Inventors: Chunde YAO, Anren YAO, Bin WANG, Taoyang WU, Jiangtao HU, Chao CHEN, Jian GAO
  • Patent number: 11016241
    Abstract: A display device includes: an optical waveguide layer having a light-entering region and a light-exiting region; an optical element correspondingly arranged in the light-entering region and configured to emit at least two types of light beams having different image information, to transmit the at least two types of light beams to the light-entering region of the optical waveguide layer; at least two coupling gratings arranged on transmission paths of the at least two types of light beams in the optical waveguide layer, and configured to change a direction of each of the at least two types of light beams in the optical waveguide layer, to enable light beams in the at least two types of light beams in the optical waveguide layer to be transmitted to the light-exiting region, exit from the light-exiting region and be converged at at least one view point.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 25, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Wang, Xiaochuan Chen, Xiandong Meng, Jifeng Tan, Pengxia Liang, Xianqin Meng, Jian Gao
  • Patent number: 11016674
    Abstract: Techniques are directed to reading data. Such techniques involve in response to receiving a read request for the target data, determining that target data is stored in both a first storage device and a second storage device. Such techniques further involve determining at least one of reliability and access load for each of the first storage device and the second storage device. Such techniques further involve: determining, based on the at least one of the reliability and the access load, one of the first storage device and the second storage device as a target storage device so as to respond to the read request. By means of certain techniques, at least one of the access load and service lives is balanced between storage devices so as to improve the efficiency of data read and the overall performance of a storage system.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 25, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Hongpo Gao, Jian Gao, Xinlei Xu, Geng Han, Jianbin Kang
  • Publication number: 20210148840
    Abstract: Provided are a scanning-type X-ray source and an imaging system therefor. The scanning-type X-ray source comprises a vacuum cavity (1), wherein a cathode (2) and a plurality of anode target structures (3) are arranged in the vacuum cavity (1); a gate electrode (4) is arranged in a position, close to the cathode (2), in the vacuum cavity (1); a focusing electrode (5) is arranged in a position, close to the gate electrode (4), in the vacuum cavity (1); and a deflection coil (6) is arranged in a position, close to the gate electrode (4), at the outer periphery of the vacuum cavity (1). The scanning-type X-ray source generates electron beams by using cathode (2), controls the powering-on/off of the electron beams by the gate electrode (4), and the deflection coil (6) controls the direction of motion of the electron beams, so as to complete the switching between multiple focuses.
    Type: Application
    Filed: December 29, 2020
    Publication date: May 20, 2021
    Applicant: NANOVISION TECHNOLOGY (BEIJING) CO., LTD
    Inventors: Zhili CUI, Jian GAO, Jinhui XING
  • Patent number: 11010083
    Abstract: Various techniques manage a storage system. Such techniques involve: in response to detecting that a first request of a plurality of requests initiated for a bulk request is completed, determining a response time length for the first request, the bulk request being used to migrate data from a first storage device to a second storage device, each request of the plurality of requests being used to read data from the first storage device and write data to the second storage device; determining an average response time length of the completed requests of the plurality of requests based at least in part on the response time length for the first request; and updating the number of the plurality of requests initiated for the bulk request based on the average response time length.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 18, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Changyu Feng, Jian Gao, Xinlei Xu, Lifeng Yang, Xiongcheng Li
  • Publication number: 20210139537
    Abstract: The present invention discloses a polypeptide compound, a pharmaceutical composition, and a preparation method and use thereof. The structural formula of the polypeptide compound is shown in general formula (I): Such polypeptide compounds as ?-opioid receptor agonists have the advantages of better activity and the potential to become clinical candidate compounds.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 13, 2021
    Applicant: CHENGDU SINTANOVO BIOTECHNOLOGY CO., LTD.
    Inventors: Jian GAO, Xiaoping FU, Guoqing ZHONG, Haibo ZHOU, Hai HU, Xi HU, Yu YUAN, Yuanbo LI
  • Patent number: 11002888
    Abstract: A display panel and a display device are disclosed. The display panel includes a flat display substrate and optical devices. The optical devices are arranged on a display surface of the flat display substrate, and light emitted through the display surface of the flat display substrate passes through the optical devices and forms an image in a curved surface.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: May 11, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinli Ma, Yafeng Yang, Jian Gao, Can Wang, Can Zhang, Jifeng Tan, Wei Wang
  • Patent number: 11003359
    Abstract: Embodiments of the present disclosure provide a method of managing a disk pool, the disk pool having a plurality of disks which are divided into a plurality of disk extents, the method comprising: determining the number of input/output (I/O) requests for disk extents in the disk pool within a predetermined period of time; determining respective hotness of the disk extents based on the number of I/O requests; determining hotness of the disks based on the hotness of the disk extents; and determining migration of data in the disk extents based on the hotness of the disk.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: May 11, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Wayne Weihua Li, Jian Gao, Hongpo Gao, Jamin Kang, Xinlei Xu, Tao Xu
  • Patent number: 11003536
    Abstract: Techniques involve writing to a disk array. In response to a request for writing target data to a target storage area in a stripe of the disk array including at least one failed storage area, it is determined whether incompletion of the writing of the target data is to cause failed data in the at least one failed storage area to be unrecoverable. In response to determining that the incompletion of the writing is to cause failed data to be unrecoverable, the failed data is recovered. The recovered data is stored in a persistent memory, and the target data is written in the target storage area. In this way, the efficiency and performance of writing processing of the disk array having a failed disk is increased significantly.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 11, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Geng Han, Jian Gao, Lifeng Yang, Jibing Dong, Xinlei Xu
  • Patent number: 11003374
    Abstract: Embodiments of the present disclosure relate to methods, devices and computer program products for managing a redundant array of independent disks (RAID). The method comprises: in response to a number of a plurality of disks occupied by the RAID exceeding a first threshold, determining a first number of disk pairs to be disassociated among the plurality of disks, the first number of disk pairs at least comprising a first disk and a second disk associated with each other, and a first extent in the first disk and a second extent in the second disk being included in a same RAID extent of the RAID. The method further comprises determining a third disk for migrating at least one of the first extent and the second extent among the plurality of disks. Besides, the method further comprises migrating the at least one extent to the third disk to disassociate the first disk and the second disk so that a second number of disk pairs associated with each other among the plurality of disks is below a second threshold.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: May 11, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Geng Han, Jian Gao, Liam Xiongcheng Li, Hongpo Gao, Jibing Dong
  • Patent number: 11003556
    Abstract: State information of one or more extents in a stripe in a storage system is obtained, the state information indicating whether the extents comprise at least one of a failed extent and an end-of-life extent. A risk level for the stripe is determined based on the state information, the risk level indicating a possibility that data stored in the stripe is lost. In response to the risk level exceeding a first threshold, the storage system is caused to: rebuild data corresponding to the failed extent, and write the data to a sparing extent in a second storage device different from a first storage device where the failed extent resides; and write data corresponding to the end-of-life extent to a swapped extent in a fourth storage device different from a third storage device where the end-of-life extent resides, the fourth storage device being used to replace the third storage device.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: May 11, 2021
    Assignee: EMC IP Holding Company LLC
    Inventors: Chun Ma, Geng Han, Jibing Dong, Hongpo Gao, Jian Gao, Xinlei Xu