Patents by Inventor Xiaotao Li

Xiaotao Li 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: 20230019343
    Abstract: Disclosed in the present invention is An annotation method of arbitrary-oriented rectangular bounding box, wherein: the elements for annotation being: the coordinates of the center point C, a vector {right arrow over (CD)} formed by the center point C and a chosen vertex D, and the ratio of the vector {right arrow over (CP)} to vector {right arrow over (CD)}, where {right arrow over (CP)} is the projection of the vector {right arrow over (CE)} to {right arrow over (CD)}, and {right arrow over (CE)} is a vector formed by the center of the bounding box to one of the vertex E that close neighbor to vertex D; and it is also required that the vector {right arrow over (CP)} is in the same direction as the vector {right arrow over (CD)}, the vertex E in either of the clockwise or counterclockwise direction of the vertex D.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 19, 2023
    Inventors: Wenlong Song, Juan LV, Changjun LIU, Rui TANG, Tao SUN, Xiaotao LI, June FU, He ZHU, Yizhu LU, Long CHEN, Hongjie LIU
  • Publication number: 20220336508
    Abstract: An image sensor (10), a camera assembly (40) and a mobile terminal (90) are disclosed. The image sensor (10) comprises panchromatic pixels and color pixels. The color pixels have the spectral response narrower than that of the panchromatic pixels, and the panchromatic pixels have the full-well capacity greater than that of the color pixels.
    Type: Application
    Filed: March 16, 2022
    Publication date: October 20, 2022
    Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Cheng Tang, Gong Zhang, Xin Yang, Rui Xu, Wentao Wang, He Lan, Jianbo Sun, Xiaotao Li, Haiyu Zhang
  • Patent number: 11448771
    Abstract: Embodiments of the present disclosure provide a method and apparatus for evaluating data, a device, and a computer-readable storage medium in the field of autonomous driving. The method may include: generating, at least based on satellite navigation data related to a vehicle, a reference position and posture data set of the vehicle; generating, at least based on a part of the satellite navigation data, a test position and posture data set of the vehicle, the accuracy of the test position and posture data set being lower than that of the reference position and posture data set; obtaining a revised position and posture data set for the test position and posture data set; and evaluating, based on the reference position and posture data set and the revised position and posture data set, a correction performance for the test position and posture data set.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: September 20, 2022
    Assignee: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Renlan Cai, Wenjie Liu, Xiaotao Li, Pengfei Yuan, Liang Peng, Shiyu Song
  • Publication number: 20220279150
    Abstract: An image sensor includes a two-dimensional pixel array and a lens array. The two-dimensional pixel array comprises a plurality of pixels. Some of the pixels includes two sub-pixels. A rectangular coordinate is established by taking the pixel as an origin, a length direction of the two-dimensional pixel array as an x-axis, and a width direction of the two-dimensional pixel array as a y-axis. The two sub-pixels lie in both a positive half axis and a negative half axis of the x-axis and lies in both a positive half axis and a negative half axis of the y-axis. The lens array comprises a plurality of lenses, each covering one of the pixels.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Inventors: Rui XU, Cheng TANG, Xin YANG, Xiaotao LI, Wentao WANG, Jianbo SUN, He LAN, Haiyu ZHANG, Gong ZHANG
  • Publication number: 20220279108
    Abstract: Disclosed are an image sensor, and a control method. The image sensor includes a two-dimensional pixel array and a lens array. The two-dimensional pixel array includes a plurality of color pixels and a plurality of panchromatic pixels; wherein each color pixel has a narrower spectral response than each panchromatic pixel; the two-dimensional pixel array includes a plurality of sub-units, and each sub-unit includes a plurality of single-color pixels among the plurality of color pixels and some of the plurality of panchromatic pixels. The lens array includes a plurality of lenses; wherein each lens covers a plurality of pixels in at least one of the plurality of sub-units; the plurality of pixels in each sub-unit are composed of the plurality of single-color pixels among the plurality of color pixels and the some of the plurality of panchromatic pixels.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Inventors: Cheng TANG, Gong ZHANG, Haiyu ZHANG, Xin YANG, Rui XU, Wentao WANG, He LAN, Jianbo SUN, Xiaotao LI
  • Publication number: 20220139981
    Abstract: Provided are an image sensor (10), a camera assembly (40), and a mobile terminal (90). The image sensor (10) includes panchromatic pixels and color pixels. The color pixels have a narrower spectral response than the panchromatic pixels, and the color pixels have a larger conversion gain than the panchromatic pixels.
    Type: Application
    Filed: January 13, 2022
    Publication date: May 5, 2022
    Inventors: Cheng Tang, Gong Zhang, Haiyu Zhang, Xin Yang, Rui Xu, He Lan, Jianbo Sun, Xiaotao Li, Wentao Wang
  • Publication number: 20220139974
    Abstract: An image sensor (10), a camera assembly (40), and a mobile terminal (90) are provided. The image sensor (10) includes a plurality of pixels. At least some of the plurality of pixels each include an isolation layer (1183), a condenser lens (1186), and a photoelectric conversion element (117). The condenser lens (1186) is provided within the isolation layer (1183). The photoelectric conversion element (117) is configured to receive light passing through the condenser lens (1186).
    Type: Application
    Filed: January 11, 2022
    Publication date: May 5, 2022
    Inventors: Cheng Tang, Gong Zhang, Haiyu Zhang, Rui Xu, Xin Yang, He Lan, Jianbo Sun, Xiaotao Li, Wentao Wang
  • Publication number: 20220130882
    Abstract: An image sensor, a camera assembly, and a mobile terminal are provided. The image sensor includes multiple pixels, and each pixel includes an isolation layer, a light guide layer, and a photoelectric conversion element. The light guide layer is formed within the isolation layer, and the refractive index of the light guide layer is greater than the refractive index of the isolation layer. The photoelectric conversion element receives light that passes through the light guide layer.
    Type: Application
    Filed: January 11, 2022
    Publication date: April 28, 2022
    Inventors: Cheng TANG, Gong ZHANG, Haiyu ZHANG, Xin YANG, Rui XU, Jianbo SUN, He LAN, Xiaotao LI, Wentao WANG
  • Publication number: 20210215832
    Abstract: The present application discloses a positioning method and an apparatus, which relate to the technical field of intelligent driving. A specific implementation solution is: determining a first positioning result using point cloud data collected by lidar in combination with a laser point cloud reflection value map; constructing a constraint condition using the first positioning result, where the constraint condition is used to accelerate a convergence speed of solving a receiver position using observation data; performing GNSS-PPP positioning using the constraint condition in combination with observation data of a GNSS receiver to obtain a second positioning result. Using this solution, lidar positioning technology is combined with GNSS-PPP positioning technology to realize a purpose of not relying on a GNSS base station.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventors: WENJIE LIU, RENLAN CAI, XIAOTAO LI, SHIYU SONG
  • Publication number: 20210072404
    Abstract: Embodiments of the present disclosure provide a method and apparatus for evaluating data, a device, and a computer-readable storage medium in the field of autonomous driving. The method may include: generating, at least based on satellite navigation data related to a vehicle, a reference position and posture data set of the vehicle; generating, at least based on a part of the satellite navigation data, a test position and posture data set of the vehicle, the accuracy of the test position and posture data set being lower than that of the reference position and posture data set; obtaining a revised position and posture data set for the test position and posture data set; and evaluating, based on the reference position and posture data set and the revised position and posture data set, a correction performance for the test position and posture data set.
    Type: Application
    Filed: March 10, 2020
    Publication date: March 11, 2021
    Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Renlan Cai, Wenjie Liu, Xiaotao Li, Pengfei Yuan, Liang Peng, Shiyu Song
  • Publication number: 20190358425
    Abstract: Provided are a brain stimulation system, method, apparatus and storage medium based on artificial intelligence. The system includes: a plurality of brain stimulation terminals and a cloud platform. The cloud platform is configured to, with artificial intelligence algorithm especially machine learning and deep learning, generate multi-dimensional psychological big data using physiological data and psychological state evaluation parameters gotten from the plurality of brain stimulation terminals and established models of algorithm for disease diagnosis.
    Type: Application
    Filed: January 16, 2019
    Publication date: November 28, 2019
    Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
    Inventors: Xiaotao Li, Juan Li, Haiyang Yang, Liping Wang
  • Patent number: 10428074
    Abstract: A pyrrole six-membered heteroaryl ring derivative, and the medicinal uses thereof are described. Specifically, the pyrrole six-membered heteroaryl ring derivative is a compound of formula (I), wherein the variable groups are as described in the specification.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 1, 2019
    Assignees: Jiangsu Hengrui Medicine Co., Ltd., Shanghai Hengrui Pharmaceutical Co., Ltd.
    Inventors: Xuejun Zhang, Qing Dong, Bonian Liu, Yaoping Zhu, Xiaotao Li, Jiong Lan
  • Publication number: 20180222912
    Abstract: A pyrrole six-membered heteroaryl ring derivative, and the medicinal uses thereof are described. Specifically, the pyrrole six-membered heteroaryl ring derivative is a compound of formula (I), wherein the variable groups are as described in the specification.
    Type: Application
    Filed: March 22, 2018
    Publication date: August 9, 2018
    Inventors: Xuejun ZHANG, Qing DONG, Bonian LIU, Yaoping ZHU, Xiaotao LI, Jiong LAN
  • Patent number: 9637484
    Abstract: Cycloalkyl acid derivatives, a preparation method thereof, and a pharmaceutical application thereof are described. In particular, a cycloalkyl acid derivative represented by general formula (I) and a medical salt thereof, a preparation method thereof, and an application of the cycloalkyl acid derivative and the medical salt thereof as URAT1 inhibitors, and particularly as therapeutic agents for diseases related to an abnormal uric acid level are described, wherein definitions of substituent groups in general formula (I) are the same as the definitions in the specification.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: May 2, 2017
    Assignees: SHANGHAI HENGRUI PHARMACEUTICAL CO., LTD., JIANGSU HENGRUI MEDICINE CO., LTD.
    Inventors: Jianbiao Peng, Piaoyang Sun, Jiong Lan, Chunyan Gu, Xiaotao Li, Bonian Liu, Chunzhou Han, Qiyue Hu, Fangfang Jin, Qing Dong, Guoqing Cao
  • Publication number: 20170044171
    Abstract: Intermediate compounds used in the preparation of pyrrole six-membered heteroaryl ring derivatives are disclosed. In particular, compounds of formula (IB) are disclosed. The compounds of formula (IB) are used in the synthesis of Janus kinase (JAK) inhibitors. Substituents in formula (IB) have the same definitions as in the description.
    Type: Application
    Filed: November 1, 2016
    Publication date: February 16, 2017
    Inventors: Xuejun ZHANG, Qing DONG, Bonian LIU, Yaoping ZHU, Xiaotao LI, Jiong LAN
  • Patent number: 9527851
    Abstract: The present invention relates to a pyrrole six-membered heteroaryl ring derivative, the preparation method therefor, and the medicinal uses thereof. Specifically, the present invention relates to a new pyrrole six-membered heteroaryl ring derivative as represented by formula (I), the preparation method therefor, a medicinal composition comprising the derivative, and a therapeutic method using same, and, in particular, the uses as a JAK inhibitor and an immunosuppressor. Substituents in formula (I) have the same definitions as in the description.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 27, 2016
    Assignees: Jiangsu Hengrui Medicine Co., Ltd., Shanghai Hengrui Pharmaceutical Co., Ltd.
    Inventors: Xuejun Zhang, Qing Dong, Bonian Liu, Yaoping Zhu, Xiaotao Li, Jiong Lan
  • Publication number: 20160108035
    Abstract: Cycloalkyl acid derivatives, a preparation method thereof, and a pharmaceutical application thereof are described. In particular, a cycloalkyl acid derivative represented by general formula (I) and a medical salt thereof, a preparation method thereof, and an application of the cycloalkyl acid derivative and the medical salt thereof as URAT1 inhibitors, and particularly as therapeutic agents for diseases related to an abnormal uric acid level are described, wherein definitions of substituent groups in general formula (I) are the same as the definitions in the specification.
    Type: Application
    Filed: April 29, 2014
    Publication date: April 21, 2016
    Applicant: Shanghai Hengrui Pharmaceutical Co., Lt.d
    Inventors: Jianbiao PENG, Piaoyang SUN, Jiong LAN, Chunyan GU, Xiaotao LI, Bonian LIU, Chunzhou HAN, Qiyue HU, Fangfang JIN, Qing DONG, Guoqing CAO
  • Publication number: 20140336207
    Abstract: The present invention relates to a pyrrole six-membered heteroaryl ring derivative, the preparation method therefor, and the medicinal uses thereof. Specifically, the present invention relates to a new pyrrole six-membered herteroaryl ring derivative as represented by formula (I), the preparation method therefor, a medicinal composition comprising the derivative, and a therapeutic method using same, and, in particular, the uses as a JAK inhibitor and an immunosuppressor. Substituents in formula (I) have the same definitions as in the description.
    Type: Application
    Filed: December 19, 2012
    Publication date: November 13, 2014
    Inventors: Xuejun Zhang, Qing Dong, Bonian Liu, Yaoping Zhu, Xiaotao Li, Jiong Lan