Patents by Inventor Guangsong LIU

Guangsong LIU 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: 20230333850
    Abstract: The present application provides a method and apparatus for generating a control instruction. The method includes: generating a control instruction in a case that it is determined that a relative angle between a wearable device worn by a user and an intelligent device changes, wherein the relative angle is determined based on respective detection operations performed by a first sound detection module and a second sound detection module contained in the wearable device aiming at sound signals transmitted by the intelligent device; and transmitting the control instruction to the intelligent device, so that the intelligent device executes the control instruction. The present application can conveniently generate the control instruction without requiring the user to perform a trigger operation on a display interface, and provides a virtual interactive control mode.
    Type: Application
    Filed: April 26, 2023
    Publication date: October 19, 2023
    Inventor: Guangsong Liu
  • Publication number: 20230251373
    Abstract: The present application provides a ranging method, apparatus and system, an intelligent device and a computer-readable storage medium. The ranging method is applicable to a first device, and the ranging method includes: transmitting a first acoustic positioning signal; receiving the first acoustic positioning signal. Regardless of whether the clock timestamps between devices are synchronized and whether the response time of software processing is different, the present application can achieve high positioning accuracy.
    Type: Application
    Filed: April 13, 2023
    Publication date: August 10, 2023
    Inventors: Guangsong Liu, Weichen Xiang
  • Publication number: 20230071703
    Abstract: The present application provides an intelligent device, an intelligent speaker, and a method and system for controlling the same. The intelligent device includes a first sound detection module configured to detect a first sound signal directly reaching the first sound detection module; an angle determination module configured to determine a time difference between the receiving time of the first sound signal and the receiving time of the second sound signal, and determine a relative angle between the intelligent device and the intelligent speaker based on a distance between the first sound detection module and the second sound detection module and the time difference; and a transmitting module configured to transmit a notification message containing the relative angle to the intelligent speaker, so that the intelligent speaker directionally transmits a sound to the intelligent device based on the relative angle. Directional sounding based on relative angle calculation is realized.
    Type: Application
    Filed: November 13, 2022
    Publication date: March 9, 2023
    Inventors: Guangsong Liu, Zirui Wang, Qing Yang
  • Patent number: 11550018
    Abstract: Embodiments of the present disclosure provide a positioning system and positioning method. A reverse calibrator for respectively calibrating relative coordinates of at least three ultrasound generators; a processor for generating a carrier signal, multiplying the carrier signal with a spread spectrum pseudo random code to obtain ranging signal, controlling each ultrasound generator to emit ranging signal, and extracting acoustic characteristic parameter of the ranging signals; a device being positioned for capturing ranging signals emitted by each generator, extracting acoustic characteristic parameter of each of the captured ranging signals; determining an ultrasonic delay time of each ultrasonic ranging signal; calculating relative coordinates of the device.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: January 10, 2023
    Assignee: SUZHOU TOUCHAIR TECHNOLOGY CO., LTD.
    Inventor: Guangsong Liu
  • Publication number: 20220365166
    Abstract: The present application provides a method, device and system for determining a relative angle between intelligent devices, and intelligent devices. The method is applicable to a first intelligent device. The first intelligent device includes a first sound detection module and a second sound detection module. The relative angle between intelligent devices can be determined quickly, simply, conveniently and accurately.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 17, 2022
    Inventors: Weichen Xiang, Guangsong Liu
  • Publication number: 20190235044
    Abstract: Embodiments of the present disclosure provide a positioning system and positioning method. A reverse calibrator for respectively calibrating relative coordinates of at least three ultrasound generators; a processor for generating a carrier signal, multiplying the carrier signal with a spread spectrum pseudo random code to obtain ranging signal, controlling each ultrasound generator to emit ranging signal, and extracting acoustic characteristic parameter of the ranging signals; a device being positioned for capturing ranging signals emitted by each generator, extracting acoustic characteristic parameter of each of the captured ranging signals; determining an ultrasonic delay time of each ultrasonic ranging signal; calculating relative coordinates of the device.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Inventor: Guangsong Liu
  • Publication number: 20150023138
    Abstract: Described herein are an ultrasonic positioning system integrated in an electronic device, and a method using the same. The ultrasonic positioning system comprises an ultrasound generator, two or more ultrasound receivers, and a control unit. Said ultrasound generator is configured to generate an ultrasound wave. Said two or more ultrasound receivers are configured to receive a reflected ultrasound wave produced by reflection of the ultrasound wave by an object in a field. Said control unit is configured to determine a position and/or a speed of the object using a frequency shift or a delay or both of the reflected ultrasound wave relative to the ultrasound wave. The ultrasonic positioning system provides gesture recognition and non-contact control of the device based on the ultrasonic positioning function of the device.
    Type: Application
    Filed: May 21, 2014
    Publication date: January 22, 2015
    Applicant: Suzhou Touchair Technology Co., Ltd
    Inventors: Guangsong Liu, Shiming Yuan
  • Publication number: 20120229509
    Abstract: A system is used for user interaction. When the system is in use, a signal source is configured to provide an image signal to a retina display unit. The retina display unit is configured to project the image signal provided by the signal source onto a user's retina such that the user visually senses a virtual interface. The image signal is displayed on the virtual interface. A camera unit is configured to capture the user's body motion. An identification-interaction unit is configured to determine an interactive operation command corresponding to the user's body motion and transmit the interactive operation command to the signal source.
    Type: Application
    Filed: November 8, 2011
    Publication date: September 13, 2012
    Inventor: Guangsong LIU