Patents by Inventor Teng Ma

Teng 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: 20200003869
    Abstract: Embodiments of the disclosure provide systems and methods for positioning a vehicle. The system includes a communication interface configured to receive point cloud frames with respect to a scene and initial pose data of a vehicle captured by sensors equipped on the vehicle as the vehicle moves along a trajectory. The system also includes a storage configured to store the point cloud frames and the initial pose data. The system further includes a processor configured to estimate pose information of the vehicle associated with each of the point cloud frames based on the initial pose data and the point cloud frames. The processor is also configured to adjust the estimated pose information of the vehicle based on a model. The model includes a spatial relationship and a temporal relationship among the plurality of point cloud frames. The processor is further configured to position the vehicle based on the adjusted pose information.
    Type: Application
    Filed: December 27, 2018
    Publication date: January 2, 2020
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Sheng YANG, Teng MA, Xing NIAN
  • Publication number: 20190392635
    Abstract: Embodiments of the disclosure provide methods and systems for updating a HAD map using a plurality of terminals. The system may include a communication interface configured to communicate with the plurality of terminals via a network. The system may further include a storage configured to store the HAD map. The system may also include at least one processor. The at least one processor may be configured to identify a target region including at least one changing object. The at least one processor may be further configured to instruct the plurality of terminals to acquire data of the target region at varying view positions, and receive the acquired data from the plurality of terminals. The at least one processor may be further configured to construct a three-dimensional model for the at least one changing object from the acquired data, and update the HAD map based on the three-dimensional model.
    Type: Application
    Filed: December 12, 2018
    Publication date: December 26, 2019
    Applicant: Beijing Didi Infinity Technology and Development Co., Ltd.
    Inventors: Teng MA, Xiaozhi QU, Baoli LI
  • Publication number: 20190392228
    Abstract: Embodiments of the disclosure provide methods and systems for calibrating a plurality of sensors. The method may include capturing, by a plurality of sensors associated with a vehicle, a set of point cloud data indicative of at least one surrounding object as the vehicle travels along a trajectory. The method may also include filtering, by a processor, the set of point cloud data based on coplanarity associated with the set of point cloud data. The method may further include adjusting, by the processor, at least one calibration parameter of the plurality of sensors based on a model using the filtered set of point cloud data. The model may include a weight corresponding to the coplanarity associated with the set of point cloud data.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 26, 2019
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Xiaoling ZHU, Teng MA
  • Publication number: 20190392232
    Abstract: Embodiments of the disclosure provide methods and systems for acquiring map data. The system may include a mounting structure configured to adjustably mount a sensor to a vehicle. The sensor may be configured to capture data indicative of at least one surrounding object as the vehicle travels along a path. The system may further include a controller configured to dynamically determine a mounting angle based on the captured data, and cause the mounting structure to adjust the sensor according to the dynamically determined mounting angle.
    Type: Application
    Filed: December 29, 2018
    Publication date: December 26, 2019
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventor: Teng MA
  • Publication number: 20190385360
    Abstract: Embodiments of the disclosure provide systems and methods for updating a high-resolution map. The system may include a communication interface configured to receive a plurality of image frames captured by a binocular camera equipped on a vehicle, as the vehicle travels along a trajectory. The system may further include a storage configured to store the high-resolution map and the plurality of image frames. The system may also include at least one processor. The at least one processor may be configured to generate point cloud frames based on the respective image frames. The at least one processor may be further configured to position the vehicle using the point cloud frames. The at least one processor may be further configured to merge the point cloud frames based on the vehicle positions. The at least one processor may also be configured to update a portion of the high-resolution map based on the merged point cloud.
    Type: Application
    Filed: December 11, 2018
    Publication date: December 19, 2019
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Sheng YANG, Teng MA, Xiaozhi QU
  • Publication number: 20190286574
    Abstract: Systems and methods are provided for performing a remote procedure call. One method may comprise, at a client device, generating a request including setting a status field in a request header to indicate to a server processor that the request is ready, writing the request to a server memory via a RDMA write operation and fetching a response generated by the server processor from the server memory via a RDMA read operation. The method may further comprise, at a server device, checking a mode flag to determine that an operation mode is set to repeated remote fetching, retrieving the request from a server memory, processing the request to generate a response and writing the response to the server memory for the response to be fetched by a client device. The response includes a response header that comprises a status field for the status of the response and a response time.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 19, 2019
    Inventors: Kang Chen, Yongwei Wu, Weimin Zheng, Maomeng Su, Teng Ma, Mingxing Zhang
  • Publication number: 20190281612
    Abstract: The present disclosure provides a cross-carrier scheduling method and a cross-carrier scheduling device. The cross-carrier scheduling method comprises receiving a cross-carrier scheduling indication transmitted from a base station via a first carrier; determining a cross-carrier scheduling time indicated by the base station according to the cross-carrier scheduling indication; adding a delay time to the cross-carrier scheduling time to obtain an actual cross-carrier scheduling time; and performing communication between user equipment by using a second carrier during the actual cross-carrier scheduling time.
    Type: Application
    Filed: November 1, 2017
    Publication date: September 12, 2019
    Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY
    Inventors: Teng MA, Rui ZHAO
  • Publication number: 20190144809
    Abstract: The subject invention concerns materials and methods for culture of cell aggregates. The subject invention utilizes three-dimensional (3-D) inserts comprising micro-channels having selected dimensions. The inserts are provided in or on tissue culture plates that can be supported on a programmable rocking platform/station, thereby providing for a hydrodynamic environment that promotes 3-D aggregation of cells cultured on the plates. In one embodiment, one or more micro-channels are provided in a 3-D insert that can be provided in or placed within the tissue culture plate. Cells are placed in the micro-channels of the inserts in the tissue culture plates that comprise a suitable cell growth medium for the particular type of cell. The supporting rocker is programmed to provide motion that generates hydrodynamic conditions that support 3-D cell aggregation and long-term culture. Aggregated cells can be harvested and isolated from the micro-channels of the 3-D inserts in the tissue culture plate at suitable times.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 16, 2019
    Inventors: TENG MA, ANG-CHEN TSAI, XUEGANG YUAN
  • Patent number: 10182791
    Abstract: A multimodality imaging system including ultrasound, optical coherence tomography (OCT), photoacoustic (PA) imaging, florescence imaging and endoscopic catheter for imaging inside the gastrointestinal tract with real-time automatic image co-registration capability, including: an ultrasound subsystem for imaging; an optical coherence tomography (OCT) subsystem for imaging, a PA microscopy or tomography subsystem for imaging and a florescence imaging subsystem for imaging. An invasive interventional imaging device is included with an instrumentality to take a tissue biopsy from a location visible on the ultrasound subsystem for imaging, on the optical coherence tomography (OCT) subsystem for imaging, photoacoustic (PA) subsystem for imaging and florescence subsystem for imaging. The instrumentality takes a tissue biopsy from a visible location simultaneously with the visualization of the tissue about to be biopsied so that the tissue biopsy location is visualized before, during and after the biopsy.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: January 22, 2019
    Assignees: The Regents of the University of California, University of Southern California
    Inventors: Qifa Zhou, Xiang Li, Jacques Van Dam, K. Kirk Shung, Thomas Cummins, Zhongping Chen, Jiawen Li, Teng Ma
  • Patent number: 10139295
    Abstract: Methods for measuring and/or mapping in-plane strain of a surface of a substrate. A grating is formed on at least a portion of the surface of the substrate. A laser is then used focused onto the grating to determine the strain on the surface by determining the variation of the grating wavelength due to the strain on the surface. The strain information is essentially carried by the grating, in terms of grating wavelength, because it varies according to the volume change of the underlying substrates. By scanning the surface grating with the small laser size, a high resolution strain map of the surface can be produced. The induced strain is related to the grating wavelength variation, which leads to the diffraction angle variation that is captured by the strain sensing measurements.
    Type: Grant
    Filed: May 14, 2016
    Date of Patent: November 27, 2018
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Hongbin Yu, Hanqing Jiang, Hanshuang Liang, Teng Ma
  • Patent number: 10035980
    Abstract: The subject invention pertains to acellular extracellular matrix (ECM) and methods for preparing it. In one embodiment, the ECM is prepared from 3-D aggregates of pluripotent stem cells or from embryoid bodies. In one embodiment, the ECM is in the form of acellular microspheres. The stem cells used in the present invention can be embryonic stem cells (ESC). In a specific embodiment, the stem cells or embryoid bodies are from human. The ECM of the invention can be mass produced using PSC aggregates or embryoid bodies in large scale bioreactors. The acellular ECM produced using the present invention can be used for injection into a person or animal to regenerate tissue and/or treat a disease or condition. A method of the invention comprises growing stem cells in suspension culture as aggregates, e.g., in a bioreactor. Acellular ECM is then prepared from the cell aggregates by decellularization.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: July 31, 2018
    Assignee: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Yan Li, Teng Ma, Sebastien Sart
  • Patent number: 10032309
    Abstract: A method and apparatus for position decoding of three dimensional mesh models are described including predicting a symbol probability of a non-empty-child-cell Cl,k, where Cl,k denotes the kth cell at layer l, wherein the symbol probability is estimated based on an accuracy of a fitted plane P, decoding the non-empty-child-cell responsive to the received predicted probability of the non-empty-child-cell, subdividing the non-empty-child-cell, if the non-empty-child-cell has more than one vertex, determining if there are more unprocessed non-empty-child-cells at layer l, determining if a lowest layer of non-empty-child-cells has been reached, if there are no more unprocessed non-empty-child-cells at layer l and regenerating the three dimensional mesh model, if the lowest layer of non-empty-child-cells has been reached.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: July 24, 2018
    Assignee: Thomson Licensing
    Inventors: Wenfei Jiang, Kangying Cai, Teng Ma
  • Publication number: 20180120125
    Abstract: Disclosed is a method and device for providing guidance to a street view destination. The method includes: acquiring a real scenario image of a scenario in which a device is located; determining, according to a current location and a device facing direction of the device, annotated information needing to be displayed; displaying, in the real scenario image, the annotated information needing to be displayed; determining selected annotated information; and displaying detailed information of a street view corresponding to the selected annotated information.
    Type: Application
    Filed: December 29, 2017
    Publication date: May 3, 2018
    Inventor: Teng Ma
  • Patent number: 9891073
    Abstract: Disclosed is a method and device for providing guidance to a street view destination. The method includes: acquiring a real scenario image of a scenario in which a device is located; determining, according to a current location and a device facing direction of the device, annotated information needing to be displayed; displaying, in the real scenario image, the annotated information needing to be displayed; determining selected annotated information; and displaying detailed information of a street view corresponding to the selected annotated information.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: February 13, 2018
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Teng Ma
  • Publication number: 20170081638
    Abstract: The subject invention concerns novel and translatable materials and methods for expansion of stem cells, such as mesenchymal stem cells (MSC), that significantly improve translational success of the cells in the treatment of various conditions, such as stroke. The subject invention utilizes cell self-aggregation as a non-genetic means to enhance their therapeutic potency in a microcarrier bioreactor. The subject invention integrates a cell aggregation process in a scalable bioreactor system. In one embodiment of the method, thermally responsive microcarriers (TRMs) are utilized in conjunction with a bioreactor system. Cells are cultured in a container or vessel in the presence of the TRMs wherein cells adhere to the surface of the TRMs. Once cells are adhered to the TRMs they can be cultured at a suitable temperature for cell growth and expansion, e.g., at about 37° C.
    Type: Application
    Filed: February 27, 2015
    Publication date: March 23, 2017
    Inventor: TENG MA
  • Publication number: 20160363492
    Abstract: Methods for measuring and/or mapping in-plane strain of a surface of a substrate. A grating is formed on at least a portion of the surface of the substrate. A laser is then used focused onto the grating to determine the strain on the surface by determining the variation of the grating wavelength due to the strain on the surface. The strain information is essentially carried by the grating, in terms of grating wavelength, because it varies according to the volume change of the underlying substrates. By scanning the surface grating with the small laser size, a high resolution strain map of the surface can be produced. The induced strain is related to the grating wavelength variation, which leads to the diffraction angle variation that is captured by the strain sensing measurements.
    Type: Application
    Filed: May 14, 2016
    Publication date: December 15, 2016
    Inventors: Hongbin Yu, Hanqing Jiang, Hanshuang Liang, Teng Ma
  • Publication number: 20160265935
    Abstract: Disclosed is a method and device for providing guidance to a street view destination. The method includes: acquiring a real scenario image of a scenario in which a device is located; determining, according to a current location and a device facing direction of the device, annotated information needing to be displayed; displaying, in the real scenario image, the annotated information needing to be displayed; determining selected annotated information; and displaying detailed information of a street view corresponding to the selected annotated information.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Inventor: Teng Ma
  • Patent number: 9220810
    Abstract: The subject invention concerns materials and methods for growing and expanding MSC while maintaining their undifferentiated phenotype, self-renewal ability, and/or multi-lineage potential. In one embodiment, a method of the invention comprises i) seeding freshly isolated MSC on a planar surface or a 3-D scaffold and growing the cells under physiological or low O2 tension for a period of time sufficient to support formation of 3-D ECM network; ii) decellularizing the planar surface or 3-D scaffold; and iii) reseeding the decellularized planar surface or 3-D scaffold with MSCs, whereby the reseeded MSCs can be grown on the scaffold and maintain an undifferentiated phenotype. In one embodiment, the 3-D scaffold comprises or is composed of PET. In one embodiment, the MSC are human MSC (hMSC).
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 29, 2015
    Assignee: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Teng Ma, Junho Kim
  • Patent number: D833073
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 6, 2018
    Assignee: ONPONT LLC
    Inventor: Teng Ma
  • Patent number: D862087
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 8, 2019
    Inventor: Teng Ma