Patents by Inventor Daoning Zhang

Daoning Zhang 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: 12031825
    Abstract: Provided is a calibration-free positioning method and system.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: July 9, 2024
    Assignee: Nolo Co., Ltd.
    Inventors: Yiming Zhang, Jianing Zhang, Daoning Zhang
  • Patent number: 11620846
    Abstract: Provided are a data processing method for multi-sensor fusion, a positioning apparatus and a VR device. The method includes: calculating a pose of a physical center by using data of at least one sensor set in a first positioning period; obtaining the predicted pose of the physical center according to an inertial navigation of the pose of the physical center; calculating a three-dimensional coordinate pose of each sensor set in a second positioning period; calculating, based on the three-dimensional coordinate pose, third inertial navigation data of each sensor set in the second positioning period; obtaining the converted poses of the physical center respectively through the third inertial navigation data and a pose relationship between each sensor and the physical center; and obtaining the predicted pose of each sensor set based on the converted poses of the physical center.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: April 4, 2023
    Assignee: NOLO CO., LTD.
    Inventors: Yiming Zhang, Daoning Zhang, Jianing Zhang
  • Patent number: 11500089
    Abstract: Disclosed are a control method and a control device for an ultrasonic receiving device. The control method includes: determining a target receiver of the ultrasonic receiving device, where the ultrasonic receiving device includes at least two ultrasonic receivers, and the target receiver is one of the at least two ultrasonic receivers on the ultrasonic receiving device that is the nearest to an ultrasonic transmitting device; and controlling a state of each of the at least two ultrasonic receivers on the ultrasonic receiving device based on the determined target receiver. Thus, the ultrasonic ranging error is reduced, and the accuracy of measurement is improved.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 15, 2022
    Assignee: Nolo Co., Ltd.
    Inventors: Yiming Zhang, Jianing Zhang, Daoning Zhang
  • Patent number: 11500455
    Abstract: Provided are a video streaming system, and a corresponding video streaming method and video streaming apparatus. The video streaming system includes a terminal and a VR device. Application platform software and server streaming software are installed on the terminal. Client streaming software is installed on the VR device, the client streaming software is configured to send posture data to the server streaming software on the terminal, the server streaming software is configured to send the posture data to the application platform software, and the application platform software is configured to render a picture. The hardware configuration of the terminal itself is utilized for picture processing, and satisfactory pictures can be obtained on the screen of the VR device. On the other hand, the picture is rendered according to prediction positioning data/prediction posture data, thereby effectively reducing picture jitter and display delay.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 15, 2022
    Assignee: Nolo Co., Ltd.
    Inventors: Ruiyuan Ran, Jianing Zhang, Daoning Zhang
  • Publication number: 20210357020
    Abstract: Provided are a video streaming system, and a corresponding video streaming method and video streaming apparatus. The video streaming system includes a terminal and a VR device. Application platform software and server streaming software are installed on the terminal. Client streaming software is installed on the VR device, the client streaming software is configured to send posture data to the server streaming software on the terminal, the server streaming software is configured to send the posture data to the application platform software, and the application platform software is configured to render a picture. The hardware configuration of the terminal itself is utilized for picture processing, and satisfactory pictures can be obtained on the screen of the VR device. On the other hand, the picture is rendered according to prediction positioning data/prediction posture data, thereby effectively reducing picture jitter and display delay.
    Type: Application
    Filed: October 15, 2019
    Publication date: November 18, 2021
    Applicant: NOLO CO., LTD
    Inventors: Ruiyuan Ran, Jianing Zhang, Daoning Zhang
  • Publication number: 20210201011
    Abstract: Provided are a data processing method for multi-sensor fusion, a positioning apparatus and a VR device. The method includes: calculating a pose of a physical center by using data of at least one sensor set in a first positioning period; obtaining the predicted pose of the physical center according to an inertial navigation of the pose of the physical center; calculating a three-dimensional coordinate pose of each sensor set in a second positioning period; calculating, based on the three-dimensional coordinate pose, third inertial navigation data of each sensor set in the second positioning period; obtaining the converted poses of the physical center respectively through the third inertial navigation data and a pose relationship between each sensor and the physical center; and obtaining the predicted pose of each sensor set based on the converted poses of the physical center.
    Type: Application
    Filed: December 29, 2020
    Publication date: July 1, 2021
    Applicant: NOLO CO., LTD.
    Inventors: Yiming Zhang, Daoning Zhang, Jianing Zhang
  • Publication number: 20210102811
    Abstract: Provided is a calibration-free positioning method and system.
    Type: Application
    Filed: March 22, 2019
    Publication date: April 8, 2021
    Applicant: NOLO CO., LTD.
    Inventors: Yiming Zhang, Jianing Zhang, Daoning Zhang
  • Patent number: 10962633
    Abstract: A three-dimensional space detection system, including: a locating base station, a label device to be located, and a computing device. The locating base station synchronizes a base time point to the label device to be located, sends an ultrasonic signal to the label device to be located, rotationally sends a first laser plane signal about a first rotation axis, and rotationally sends a second laser plane signal about a second rotation axis perpendicular to the first rotation axis. The label device to be located synchronizes a base time point from the locating base station, detects the ultrasonic signal, the first laser plane signal and the second laser plane signal.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 30, 2021
    Assignee: NOLO CO., LTD
    Inventor: Daoning Zhang
  • Patent number: 10512059
    Abstract: Provided is a positioning base station includes: a rotating laser plane emitting unit, a distance measuring device and a synchronization device. The rotating laser plane emitting unit is configured to rotate around a rotation axle, and emit two laser plane signals having a preset angle therebetween. The two laser plane signals are configured to scan a space. The distance measuring device is configured to emit a distance measuring signal configured to measure a distance between the positioning base station and a device to be positioned. The synchronization device is configured to transmit a synchronization signal configured to synchronize time of the positioning base station and the device to be positioned.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: December 17, 2019
    Assignee: NOLO CO., LTD.
    Inventors: Jianing Zhang, Daoning Zhang
  • Publication number: 20190174455
    Abstract: Provided is a positioning base station includes: a rotating laser plane emitting unit, a distance measuring device, and a synchronization device. The rotating laser plane emitting unit is configured to rotate around a rotation axle, and emit two laser plane signals having a preset angle therebetween. The two laser plane signals are configured to scan a space. The distance measuring device is configured to emit a distance measuring signal configured to measure a distance between the positioning base station and a device to be positioned. The synchronization device is configured to transmit a synchronization signal configured to synchronize time of the positioning base station and the device to be positioned.
    Type: Application
    Filed: August 8, 2017
    Publication date: June 6, 2019
    Applicant: NOLO CO., LTD.
    Inventors: JIANING ZHANG, DAONING ZHANG
  • Publication number: 20180217246
    Abstract: A three-dimensional space detection system, including: a locating base station, a label device to be located, and a computing device. The locating base station synchronizes a base time point to the label device to be located, sends an ultrasonic signal to the label device to be located, rotationally sends a first laser plane signal about a first rotation axis, and rotationally sends a second laser plane signal about a second rotation axis perpendicular to the first rotation axis. The label device to be located synchronizes a base time point from the locating base station, detects the ultrasonic signal, the first laser plane signal and the second laser plane signal.
    Type: Application
    Filed: March 14, 2018
    Publication date: August 2, 2018
    Inventor: Daoning Zhang