Patents by Inventor Xiuzhi Zhang

Xiuzhi 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: 12026299
    Abstract: An adaptive VR system is provided, which includes a headset and a handle, the headset comprises a headset camera, a control end, and an electromagnetic receiving module, and the control end comprises a control end database and a data selection module; the handle comprises a handle camera and an electromagnetic transmitting module; the headset camera is configured to acquire an external environment image in a headset coordinate system; the handle camera is configured to acquire an external environment image in a handle coordinate system; the control end database is configured to store the external environment image of the handle coordinate system; the data selection module is configured to determine a tracking mode used for tracking the handle, the tracking mode comprising optical tracking; and the electromagnetic receiving module is connected to the data selection module.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: July 2, 2024
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Hongwei Zhou, Guanghui Liu, Hengjiang Guo
  • Patent number: 11962749
    Abstract: A method and system for aligning exposure center points of multiple cameras in a VR system are provided. The method includes: acquiring image data of a first type frame according to a preset frame rate; adjusting VTS data of the first type frame, the VTS data changing with the change of the exposure parameters so as to fix a time interval between an exposure center point of the first type frame and an FSIN synchronization signal in a VR system; acquiring image data of a second type frame according to the preset frame rate; and adjusting VTS data of the second type frame according to the VTS data of the first type frame, and fixing a time interval between an exposure center point of the second type frame and the FSIN synchronization signal so as to complete the alignment of exposure center points of the cameras.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: April 16, 2024
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Hongwei Zhou, Guanghui Liu, Hengjiang Guo
  • Patent number: 11819755
    Abstract: A VR system and a positioning and tracking method of the VR system are provided. The VR system includes a head-mounted display and a gamepad. The head-mounted display includes a first inertial sensor, a first processor, and first cameras. The gamepad includes a second inertial sensor and second cameras. The first processor is configured to obtain 6DOF data of the head-mounted display under a world coordinate system based on the inertial data of the head-mounted display obtained by the first inertial sensor and the external environment images of the head-mounted display obtained by the first cameras, obtain 6DOF data of the gamepad under the world coordinate system based on the inertial data of the gamepad obtained by the second inertial sensor and the external environment images of the gamepad obtained by the second cameras, and generate 6DOF data of the gamepad on the head-mounted display.
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: November 21, 2023
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Hongwei Zhou, Guanghui Liu, Hengjiang Guo
  • Patent number: 11800542
    Abstract: Embodiments of the present disclosure disclose a data transmission method, apparatus, device, and system. The method includes: receiving a broadcast signal from a head-mounted display device, the broadcast signal including at least time synchronization information and/or control data, and the broadcast signal being transmitted in accordance with a predetermined period; and transmitting, in a wireless transmission channel that is obtained in advance, handle data to the head-mounted display device in accordance with a predetermined time interval.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: October 24, 2023
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Feifei Ding
  • Publication number: 20230288982
    Abstract: An adaptive VR system is provided, which includes a headset and a handle, the headset comprises a headset camera, a control end, and an electromagnetic receiving module, and the control end comprises a control end database and a data selection module; the handle comprises a handle camera and an electromagnetic transmitting module; the headset camera is configured to acquire an external environment image in a headset coordinate system; the handle camera is configured to acquire an external environment image in a handle coordinate system; the control end database is configured to store the external environment image of the handle coordinate system; the data selection module is configured to determine a tracking mode used for tracking the handle, the tracking mode comprising optical tracking; and the electromagnetic receiving module is connected to the data selection module.
    Type: Application
    Filed: August 10, 2022
    Publication date: September 14, 2023
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Patent number: 11754835
    Abstract: The embodiments of the disclosure relate to an image acquisition method, a handle device, a head-mounted device and a head-mounted system. The handle device comprises a shell and a control module arranged in the shell. A switch control end of an infrared circuit is connected with the control module, and infrared light beads of the infrared circuit penetrate outwards through the shell; and a switch control end of a visible light circuit is connected with the control module, and visible light strips of the visible light circuit penetrate outwards through the shell. Through visible light and infrared light set on the handle, the position of the handle device can be judged, and the tracking accuracy is extremely high.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: September 12, 2023
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Hongwei Zhou, Guanghui Liu, Hengjiang Guo
  • Patent number: 11733771
    Abstract: Provided is a high-precision anti-interference VR system, including a data selection module, a headset, and a handle matched with the headset, the data selection module selects and invokes an optical tracking module group and an electromagnetic tracking module group according to an optical FOV range; the optical tracking module group includes an optical display module and an optical tracking module, the optical display module emits a physical signal by adjusting on-off and brightness thereof; the optical tracking module obtains the physical signal emitted by the optical display module, and converts the physical signal into tracking information of the handle; the electromagnetic tracking module group includes an electromagnetic emission module and an electromagnetic receiving module, the electromagnetic emission module generates an electromagnetic signal through a driving circuit, and transmits the electromagnetic signal; and the electromagnetic receiving module receives the electromagnetic signal to complete
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: August 22, 2023
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Hongwei Zhou, Guanghui Liu, Hengjiang Guo
  • Patent number: 11662592
    Abstract: Provided are a head-mounted display device and a head-mounted display system. The head-mounted display device includes: a processor, a first interface, a transfer switch, a wireless communication module and a display screen, the wireless communication module is configured to be in wireless communication connection with a hand-held controller; the processor is configured to control the transfer switch to switch for communication between the first interface and the display screen when detecting that the first interface is connected to a host, and send first position data and second position data to the host via the first interface, so as to allow the host to render an image according to the first position data and the second position data and to output and display a rendered image on the display screen via the first interface.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: May 30, 2023
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventors: Xiuzhi Zhang, Hongwei Zhou, Guanghui Liu, Hengjiang Guo
  • Publication number: 20230156747
    Abstract: Embodiments of the present disclosure disclose a data transmission method, apparatus, device, and system. The method includes: receiving a broadcast signal from a head-mounted display device, the broadcast signal including at least time synchronization information and/or control data, and the broadcast signal being transmitted in accordance with a predetermined period; and transmitting, in a wireless transmission channel that is obtained in advance, handle data to the head-mounted display device in accordance with a predetermined time interval.
    Type: Application
    Filed: January 6, 2023
    Publication date: May 18, 2023
    Inventors: Xiuzhi ZHANG, Feifei DING
  • Publication number: 20230004218
    Abstract: The present disclosure provides a virtual reality system. The virtual reality system of the disclosure, comprising: a head-mounted display, an input device and a positioning module, wherein the head-mounted display comprises a central processing unit, a camera module connected with the central processing unit and a wireless connection module; the camera module comprises a binocular fisheye camera, an IR camera and a TOF camera, the positioning module comprises a first inertial measurement unit and an electromagnetic receiver provided on the head-mounted display, a second inertial measurement unit and an electromagnetic transmitter provided on the input device; the central processing unit, configured to implement data interaction and command control with the binocular fisheye camera, the IR camera, the TOF camera, the wireless connection module, the first inertial measurement unit and the electromagnetic receiver.
    Type: Application
    Filed: September 15, 2020
    Publication date: January 5, 2023
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Publication number: 20220385884
    Abstract: A method and system for aligning exposure center points of multiple cameras in a VR system are provided. The method includes: acquiring image data of a first type frame according to a preset frame rate; adjusting VTS data of the first type frame, the VTS data changing with the change of the exposure parameters so as to fix a time interval between an exposure center point of the first type frame and an FSIN synchronization signal in a VR system; acquiring image data of a second type frame according to the preset frame rate; and adjusting VTS data of the second type frame according to the VTS data of the first type frame, and fixing a time interval between an exposure center point of the second type frame and the FSIN synchronization signal so as to complete the alignment of exposure center points of the cameras.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 1, 2022
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Publication number: 20220379197
    Abstract: A VR system and a positioning and tracking method of the VR system are provided. The VR system includes a head-mounted display and a gamepad. The head-mounted display includes a first inertial sensor, a first processor, and first cameras. The gamepad includes a second inertial sensor and second cameras. The first processor is configured to obtain 6DOF data of the head-mounted display under a world coordinate system based on the inertial data of the head-mounted display obtained by the first inertial sensor and the external environment images of the head-mounted display obtained by the first cameras, obtain 6DOF data of the gamepad under the world coordinate system based on the inertial data of the gamepad obtained by the second inertial sensor and the external environment images of the gamepad obtained by the second cameras, and generate 6DOF data of the gamepad on the head-mounted display.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Publication number: 20220382365
    Abstract: Provided is a high-precision anti-interference VR system, including a data selection module, a headset, and a handle matched with the headset, the data selection module selects and invokes an optical tracking module group and an electromagnetic tracking module group according to an optical FOV range; the optical tracking module group includes an optical display module and an optical tracking module, the optical display module emits a physical signal by adjusting on-off and brightness thereof; the optical tracking module obtains the physical signal emitted by the optical display module, and converts the physical signal into tracking information of the handle; the electromagnetic tracking module group includes an electromagnetic emission module and an electromagnetic receiving module, the electromagnetic emission module generates an electromagnetic signal through a driving circuit, and transmits the electromagnetic signal; and the electromagnetic receiving module receives the electromagnetic signal to complete
    Type: Application
    Filed: August 11, 2022
    Publication date: December 1, 2022
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Publication number: 20220373793
    Abstract: The embodiments of the disclosure relate to an image acquisition method, a handle device, a head-mounted device and a head-mounted system. The handle device comprises a shell and a control module arranged in the shell. A switch control end of an infrared circuit is connected with the control module, and infrared light beads of the infrared circuit penetrate outwards through the shell; and a switch control end of a visible light circuit is connected with the control module, and visible light strips of the visible light circuit penetrate outwards through the shell. Through visible light and infrared light set on the handle, the position of the handle device can be judged, and the tracking accuracy is extremely high.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Publication number: 20220373808
    Abstract: Provided are a head-mounted display device and a head-mounted display system. The head-mounted display device includes: a processor, a first interface, a transfer switch, a wireless communication module and a display screen, the wireless communication module is configured to be in wireless communication connection with a hand-held controller; the processor is configured to control the transfer switch to switch for communication between the first interface and the display screen when detecting that the first interface is connected to a host, and send first position data and second position data to the host via the first interface, so as to allow the host to render an image according to the first position data and the second position data and to output and display a rendered image on the display screen via the first interface.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Inventors: Xiuzhi ZHANG, Hongwei ZHOU, Guanghui LIU, Hengjiang GUO
  • Patent number: 11294189
    Abstract: Positioning a handle in a head mounted display system, and a head mounted display system. A wireless radio frequency master device is used on a head mounted device in the head mounted display system to perform operations of pairing with a wireless radio frequency slave device of a first handle and a wireless radio frequency slave device of a second handle. An electromagnetic wave receiver is used to receive electromagnetic waves emitted by an electromagnetic wave emitter of the first handle and an electromagnetic wave emitter of the second handle and generate an induced electromotive force. And, calculating position and posture information corresponding to the first handle and information of position and posture corresponding to the second handle respectively, wherein the position and posture information includes position translation information and direction rotation information when the wearer wears the first handle or the second handle.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: April 5, 2022
    Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
    Inventor: Xiuzhi Zhang
  • Publication number: 20220043270
    Abstract: Positioning a handle in a head mounted display system, and a head mounted display system. A wireless radio frequency master device is used on a head mounted device in the head mounted display system to perform operations of pairing with a wireless radio frequency slave device of a first handle and a wireless radio frequency slave device of a second handle. An electromagnetic wave receiver is used to receive electromagnetic waves emitted by an electromagnetic wave emitter of the first handle and an electromagnetic wave emitter of the second handle and generate an induced electromotive force.
    Type: Application
    Filed: December 26, 2019
    Publication date: February 10, 2022
    Applicant: Qingdao Pico Technology Co., Ltd.
    Inventor: Xiuzhi ZHANG
  • Patent number: 9464463
    Abstract: A combination includes a lock body, a shackle having a second leg and a first leg, a lock member provided rotatably within the lock body and a locking element disposed movably within the lock body and provided with the lock member, wherein the first locking element is adapted to be driven by the lock member to do a reciprocating motion between a shackle locking state and a shackle releasing state, wherein when the shackle is at the shackle locking state, the first locking element is driven to engage with the first leg of the shack so as to hold the first leg within the lock body; when the shackle is at the shackle unlocking state, the first locking element is driven to leave from the first leg of the shack so as to enable the first leg to separate from the lock body.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 11, 2016
    Assignee: Shanghai Saintsung Polytron Technologies Inc.
    Inventors: Chengfan Bao, Xiuzhi Zhang
  • Publication number: 20140366592
    Abstract: A combination includes a lock body, a shackle having a second leg and a first leg, a lock member provided rotatably within the lock body and a locking element disposed movably within the lock body and provided with the lock member, wherein the first locking element is adapted to be driven by the lock member to do a reciprocating motion between a shackle locking state and a shackle releasing state, wherein when the shackle is at the shackle locking state, the first locking element is driven to engage with the first leg of the shack so as to hold the first leg within the lock body; when the shackle is at the shackle unlocking state, the first locking element is driven to leave from the first leg of the shack so as to enable the first leg to separate from the lock body.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 18, 2014
    Inventors: Chengfan Bao, Xiuzhi Zhang
  • Patent number: 8777107
    Abstract: A roller laser encoding apparatus includes a barcode formed on a curved surface to form a curved barcode surface wherein the barcode is a sequence of different color laser reflectivity. When a laser transmitter emits a laser beam toward the curved barcode surface, the laser beam is reflected by the curved barcode surface to form a reflected laser beam. After the reflected laser beam is received by a laser receiver as a light signal, the optoelectronic converter converts the light signal of the reflected laser beam into a voltage signal. After the curved barcode surface is rotated in one revolution, an encoding processor collects the voltage signals from the optoelectronic converter in sequent and generates a sequence of voltage value in response to the sequence of different color laser reflectivity of the curved barcode surface so as to output a decoding signal of the curved barcode surface.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: July 15, 2014
    Assignee: Shanghai Shengxiang Science and Technology Co., Ltd.
    Inventors: Chengfan Bao, Xiuzhi Zhang