Patents by Inventor Xiaofeng Ma

Xiaofeng Ma 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: 20230009464
    Abstract: Disclosed are a display substrate (10) and a display device. The display substrate (10) includes at least one irregularly-shaped pixel (103), and a shape of a boundary line of a side, proximal to a peripheral region (101b), of each irregularly-shaped pixel (103) matches with a shape of a boundary line (101a1) of an irregularly-shaped display region (101a) in a base substrate (101), such that the irregularly-shaped pixel (103) does not go beyond the irregularly-shaped display region (101a) of the display substrate (10), a narrow bezel of the display substrate (10) can be realized conveniently, and an image displayed at the boundary line (101a1) of the irregularly-shaped display region (101a) may be prevented from being in a zigzag shape, thereby ensuring a display effect of the display device.
    Type: Application
    Filed: May 12, 2021
    Publication date: January 12, 2023
    Inventors: Zhuo XU, Yajie BAI, Xiaofeng MA, Haigang YANG, Chen WANG
  • Patent number: 11538397
    Abstract: Disclosed are a first shift register, a driving method for the same, a gate driving circuit and a display device. The first shift register includes a first unit, M second units and N third units. A first signal output terminal of the first unit is connected with M second signal input terminals of the M second units. A second signal output terminal of each second unit is connected with third signal input terminals of N/M third units respectively. The first unit outputs a voltage of a first clock signal terminal to the first signal output terminal and a fourth signal output terminal under the control of a first signal input terminal and a second clock signal terminal and outputs a voltage of a first voltage terminal to the first signal output terminal and the fourth signal output terminal.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: December 27, 2022
    Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhuo Xu, Yajie Bai, Shuai Chen, Xiaofeng Ma, Hyungkyu Kim
  • Patent number: 11505800
    Abstract: A method for improving a bio-coupling efficiency between a protein and a nucleic acid based on an ?-helix handle includes the following steps. First, the handle carrying the non-natural amino acid (H-tag) is designed. Then, a recombinant expression plasmid encoding a fusion protein containing the H-tag and the protein to be tested is constructed. Subsequently, the fusion recombinant protein containing the non-natural amino acid in the H-tag is expressed and purified. Finally, the non-natural amino acid in the H-tag-fused protein and the coupling group on the nucleic acid substrate are efficiently connected by click chemistry. Thea-helix handle is used to provide a controllable reaction condition on the protein surface for the non-natural amino acid, avoiding the complex structure, charge and polar nanoenvironment around the surface of the protein to be tested.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 22, 2022
    Assignee: Nankai University
    Inventors: Zhongbo Yu, Xu Li, Xiaofeng Ma, Lihua Qu, Wei Huang
  • Publication number: 20220238557
    Abstract: An array substrate, a method for forming the array substrate and a display device are provided, each transistor structure in the array substrate includes: a gate pattern, an active pattern and two electrode patterns. The two electrode patterns correspond to two electrode contact regions respectively. Each electrode pattern includes a first electrode sub-pattern and a second electrode sub-pattern coupled to each other, an orthographic projection of the first electrode sub-pattern onto the base substrate and that of a corresponding electrode contact region onto the base substrate form a first overlapping region, the second electrode sub-pattern covers a part of a first boundary of the gate pattern, and an angle between an extension direction of an orthographic projection of the second electrode sub-pattern onto the base substrate and an extension direction of an orthographic projection of the part of the first boundary onto the base substrate is less than 90 degrees.
    Type: Application
    Filed: February 2, 2021
    Publication date: July 28, 2022
    Inventors: Zhuo XU, Haigang YANG, Jungho PARK, Xiaofeng MA
  • Publication number: 20220180797
    Abstract: Disclosed are a first shift register, a driving method for the same, a gate driving circuit and a display device. The first shift register includes a first unit, M second units and N third units. A first signal output terminal of the first unit is connected with M second signal input terminals of the M second units. A second signal output terminal of each second unit is connected with third signal input terminals of N/M third units respectively. The first unit outputs a voltage of a first clock signal terminal to the first signal output terminal and a fourth signal output terminal under the control of a first signal input terminal and a second clock signal terminal and outputs a voltage of a first voltage terminal to the first signal output terminal and the fourth signal output terminal.
    Type: Application
    Filed: September 27, 2021
    Publication date: June 9, 2022
    Inventors: Zhuo XU, Yajie BAI, Shuai CHEN, Xiaofeng MA, Hyungkyu KIM
  • Patent number: 11263941
    Abstract: Embodiments of the present disclosure relate to a data driving circuit, a driving method thereof, an array substrate, and a display panel. The data driving circuit includes a data driver, a multiplex circuit, and a control circuit. The data driver includes M data output terminals, and each of the data output terminals provides a data signal to L data lines via the multiplex circuit. The multiplex circuit includes M×L switch groups, and each of the switch groups includes N switch tubes and is coupled between one data line and the corresponding data output terminal. Each switch tube is coupled to one of L×N gate control terminals of the control circuit. Each gate control terminal is coupled to M switch tubes that are spaced apart from each other by (L×N×1) switch tubes. In the embodiments, M is an integer, and L and N are integers greater than or equal to 2.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: March 1, 2022
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaolin Wang, Pengcheng Fu, Rui Wang, Jungho Park, Xiaofeng Ma, Jianfeng Yuan
  • Publication number: 20210358360
    Abstract: Embodiments of the present disclosure relate to a data driving circuit, a driving method thereof, an array substrate, and a display panel. The data driving circuit includes a data driver, a multiplex circuit, and a control circuit. The data driver includes M data output terminals, and each of the data output terminals provides a data signal to L data lines via the multiplex circuit. The multiplex circuit includes M×L switch groups, and each of the switch groups includes N switch tubes and is coupled between one data line and the corresponding data output terminal. Each switch tube is coupled to one of L×N gate control terminals of the control circuit. Each gate control terminal is coupled to M switch tubes that are spaced apart from each other by (L×N×1) switch tubes. In the embodiments, M is an integer, and L and N are integers greater than or equal to 2.
    Type: Application
    Filed: January 3, 2019
    Publication date: November 18, 2021
    Inventors: Xiaolin WANG, Pengcheng FU, Rui WANG, Jungho PARK, Xiaofeng MA, Jianfeng YUAN
  • Publication number: 20210332372
    Abstract: A method for improving a bio-coupling efficiency between a protein and a nucleic acid based on an ?-helix handle includes the following steps. First, the handle carrying the non-natural amino acid (H-tag) is designed. Then, a recombinant expression plasmid encoding a fusion protein containing the H-tag and the protein to be tested is constructed. Subsequently, the fusion recombinant protein containing the non-natural amino acid in the H-tag is expressed and purified. Finally, the non-natural amino acid in the H-tag-fused protein and the coupling group on the nucleic acid substrate are efficiently connected by click chemistry. Thea-helix handle is used to provide a controllable reaction condition on the protein surface for the non-natural amino acid, avoiding the complex structure, charge and polar nanoenvironment around the surface of the protein to be tested.
    Type: Application
    Filed: September 23, 2019
    Publication date: October 28, 2021
    Applicant: Nankai University
    Inventors: Zhongbo Yu, Xu Li, Xiaofeng Ma, Lihua Qu, Wei Huang
  • Patent number: 10979511
    Abstract: Methods and systems for selecting an existing connection from a connection pool. A connection is immediately decoupled from its client session when the client session is released by a user and made available to the same user or other users. Criteria are defined, applied and considered for either re-using an existing connection or creating a new connection.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: April 13, 2021
    Assignee: Open Text Corporation
    Inventors: Roger W. Kilday, Shreyas Satyanand Kaushik, Siddaram Siddanna Bali, Xiaofeng Ma, Shu-Shang Sam Wei
  • Patent number: 10761357
    Abstract: A liquid crystal display panel and a display device, comprising: an array substrate, an opposite substrate arranged opposite to the array substrate, a driver circuit; a common electrode layer on a side of the opposite substrate facing the array substrate; and a liquid crystal layer located between the opposite substrate and the array substrate; the array substrate includes: a display area, a non-display area, a signal line in the display area, and a switchover terminal in the non-display area, where the switchover terminal includes: a first connection terminal electrically connected with the driver circuit, a second connection terminal electrically connected with the signal line, and an electrically-conductive layer covering the first connection terminal and the second connection terminal; the electrically-conductive layer is insulated from the common electrode layer.
    Type: Grant
    Filed: February 24, 2018
    Date of Patent: September 1, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Rui Wang, Shaoru Li, Xiaofeng Ma, Fei Shang
  • Publication number: 20200048452
    Abstract: The invention is a polyoxymethylene film and a preparation method. The polyoxymethylene film comprises: 96 to 98 parts by weight of polyoxymethylene resin, 0.5 to 2 parts by weight of nucleating agent, 0.5 to 1 parts by weight of antioxidant, and 0.5 to 1 parts by weight of formaldehyde absorbent. In view of the high crystallinity and fast crystallization rate of polyoxymethylene, blown film process is used to directly blowing the molten mass extruded through a die of a screw extruder to form a blown film bubble. It is easy to form thin neck and easy to break when stretching, so the method is beneficial to form polyoxymethylene film, and has high processing efficiency, and is suitable for industrialization. Copolymerization unit —CH2—CH2—O— is introduced into the molecular chain of polyoxymethylene and its ratio is increased, thereby effectively reducing the crystallization rate of the materials and making it easier to form a film.
    Type: Application
    Filed: September 8, 2019
    Publication date: February 13, 2020
    Inventors: Yatao WANG, Xiaofeng MA, Jianhua LI, Lili LIU, Xuehua GUO, Hongjuan LI, Wang JIN, Dazhi YANG, Lizheng GUAN
  • Publication number: 20190227370
    Abstract: A liquid crystal display panel and a display device, comprising: an opposite substrate (5) and an array substrate (1) which are oppositely arranged, a drive circuit (6), and a liquid crystal layer (11) which is located between the opposite substrate (5) and the array substrate (1); the array substrate (1) is provided with a display area (8) and a non-display area, the display area (8) being provided therein with a signal line (2), and the non-display area being provided therein with a transfer terminal (7) which is used for connecting the drive circuit (6) and the signal line (2); a side of the opposite substrate (5) facing the array substrate (1) is provided with a common electrode layer (4).
    Type: Application
    Filed: February 24, 2018
    Publication date: July 25, 2019
    Inventors: Rui Wang, Shaoru Li, Xiaofeng Ma, Fei Shang
  • Publication number: 20180152521
    Abstract: Methods and systems for selecting an existing connection from a connection pool. A connection is immediately decoupled from its client session when the client session is released by a user and made available to the same user or other users. Criteria are defined, applied and considered for either re-using an existing connection or creating a new connection.
    Type: Application
    Filed: January 29, 2018
    Publication date: May 31, 2018
    Inventors: Roger W. Kilday, Shreyas Satyanand Kaushik, Siddaram Siddanna Bali, Xiaofeng Ma, Shu-Shang Sam Wei
  • Patent number: 9930122
    Abstract: Methods and systems for selecting an existing connection from a connection pool. A connection is immediately decoupled from its client session when the client session is released by a user and made available to the same user or other users. Criteria are defined, applied and considered for either re-using an existing connection or creating a new connection.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 27, 2018
    Assignee: Open Text Corporation
    Inventors: Roger W. Kilday, Shreyas Satyanand Kaushik, Siddaram Siddanna Bali, Xiaofeng Ma, Shu-Shang Sam Wei
  • Patent number: 9258793
    Abstract: Methods and systems for providing light weight client sessions. Connections are immediately decoupled from sessions when released by a user and made available to the same or other users. Re-authentication of the user to re-use a connection can be streamlined by maintaining client login data in a client login record cache.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: February 9, 2016
    Assignee: EMC Corporation
    Inventors: Roger W. Kilday, Shreyas Satyanand Kaushik, Siddaram Siddanna Bali, Xiaofeng Ma, Shu-Shang Sam Wei
  • Patent number: 8949282
    Abstract: Storing data is disclosed. An attribute is included in a combined set of attributes. The combined set of attributes includes a plurality of attribute values associated with an object and is stored in a single database field that is not specific to any one attribute in the combined set of attributes.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: February 3, 2015
    Assignee: EMC Corporation
    Inventors: Shu-Shang Sam Wei, Roger W. Kilday, Victor Spivak, Meir Amiel, Venkat Chandrasekaran, Yik-Ping Li, Xiaofeng Ma
  • Patent number: 8930336
    Abstract: Retrieving stored data is disclosed. A retrieval request is received for an object. A retrieval response is generated that includes: 1) a first set of searchable attributes associated with the object, wherein an attribute of the first set of attributes is stored in a database in a manner that enables a database query to be performed against the attribute of the first set of attributes; and 2) a second set of non-searchable attributes associated with the object, wherein an attribute of the second set of attributes is stored in the database in a manner that does not enable a database query to be performed against the attribute of the second set of attributes.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 6, 2015
    Assignee: EMC Corporation
    Inventors: Shu-Shang Sam Wei, Roger W. Kilday, Victor Spivak, Meir Amiel, Venkat Chandrasekaran, Yik-Ping Li, Xiaofeng Ma
  • Publication number: 20140300712
    Abstract: A tri-viewing angle display comprises a display panel and a parallax barrier located in front of the display panel, the parallax barrier comprises light transmitting strips and light shielding strips that are arranged alternately and parallel to each other, and the display panel is provided with three pixel areas arranged successively and periodically thereon, each of the light shielding strips is positioned right above two adjacent pixel areas and a width of the light shielding strip is greater than the sum of widths of the two adjacent pixel areas.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 9, 2014
    Inventors: Xiaofeng Ma, Jaegeon You
  • Patent number: 8694546
    Abstract: An attribute of a hierarchical class-based object is received. The attribute in a database is stored both in a first location in a first table at a first level of a hierarchy of database tables which table hierarchy is based at least in part on a class hierarchy associated with the hierarchical class-based object and in a second location in a second table at a second level of the table hierarchy which second level is higher than the first level.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 8, 2014
    Assignee: EMC Corporation
    Inventors: Shu-Shang Sam Wei, Roger W. Kilday, Victor Spivak, Meir Amiel, Venkat Chandrasekaran, Yik-Ping Li, Xiaofeng Ma
  • Patent number: 8595265
    Abstract: Storing data is disclosed. An attribute is included in a combined set of attributes. The combined set of attributes is stored in one or more database locations not specific to any one attribute in the combined set.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: November 26, 2013
    Assignee: EMC Corporation
    Inventors: Shu-Shang Sam Wei, Roger W. Kilday, Victor Spivak, Meir Amiel, Venkat Chandrasekaran, Yik-Ping Li, Xiaofeng Ma