Patents by Inventor Qingxiang Li

Qingxiang 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: 20240097309
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Patent number: 11894600
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: February 6, 2024
    Assignee: Apple Inc.
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Publication number: 20230378989
    Abstract: An electronic device has a frame configured to be worn on a user's head, where the frame includes a body and a temple coupled to the body. The body is configured to support a lens. The electronic device includes a processor in the frame and an RF antenna positioned in the body and in data communication with the processor.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 23, 2023
    Inventors: Yijun ZHOU, Heesuk CHUNG, Qingxiang LI, Abrian Jacob MIHALKO, Mohit NARANG, Rubén CABALLERO, Robert Joseph HILL
  • Patent number: 11616226
    Abstract: The disclosure discloses a method for preparing a high-voltage cathode material by body modification and regeneration of a waste lithium cobaltate material.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: March 28, 2023
    Assignee: Kunming University of Science and Technology
    Inventors: Yingjie Zhang, Peng Dong, Qi Meng, Siyuan Zhou, Qingxiang Li, Shaoqiang Zhou, Jianguo Duan, Xue Li, Yin Liu, Duanyun Chen
  • Publication number: 20230041962
    Abstract: Metallic, electrically conductive, structures on smart glasses, which can be utilized to provide structural integrity and/or thermal dissipation capability, can be leveraged to provide antenna capability as well. Metallic structures on smart glasses are utilized as antenna grounds, with corresponding antenna elements being electrically coupled thereto, and located on the glasses temple. Such antenna elements implement folded antennas having an antenna length selected in accordance with desired communicational frequencies. A shorting pin establishes the electrical connection to the antenna ground. Metallic structures on smart glasses are also utilized as antenna elements, with different metallic structures acting as the antenna ground. Such antenna elements implement monopole antennas having a length selected in accordance with desired communicational frequencies, and a width that can maintain structural integrity and/or thermal dissipation capability.
    Type: Application
    Filed: August 3, 2021
    Publication date: February 9, 2023
    Inventors: Yijun ZHOU, Robert Joseph HILL, Qingxiang LI, Heesuk CHUNG, Daejoung KIM, Venkata Vishnu GURUKULA, Mohit NARANG, Rubén CABALLERO
  • Publication number: 20230000133
    Abstract: The present disclosure provides a method for extracting tar aroma components from a cigarette butt and use of the tar aroma components in a cigarette. The method includes the following steps: (1) adding the cigarette butt to an extraction solvent, and carrying out ultrasound-assisted extraction to obtain an extraction solution; (2) centrifuging the extraction solution, and carrying out vacuum distillation on the supernatant to obtain a concentrated extractum; and (3) carrying out molecular distillation on the concentrated extractum, and collecting a light fraction of the molecular distillation to obtain the tar aroma components. In the present disclosure, the cigarette butt is used as a raw material, through the ultrasound-assisted extraction and separation by the molecular distillation to extract the tar, harmful substances in the tar are removed, and the aroma components are retained.
    Type: Application
    Filed: November 16, 2020
    Publication date: January 5, 2023
    Applicant: INNER MONGOLIA KUNMING CIGARETTE CO., LTD.
    Inventors: Liqun LI, Jie HAO, Chen CHEN, Junsong ZHANG, Xudong JI, Chunsheng GUO, Yajun YE, Shu TIAN, Xudong WANG, Yuemei QIAO, Ruili LI, Yuanyang ZHU, Qingxiang LI
  • Publication number: 20220077565
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Application
    Filed: November 16, 2021
    Publication date: March 10, 2022
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Patent number: 11205832
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: December 21, 2021
    Assignee: Apple Inc.
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Publication number: 20210391568
    Abstract: The disclosure discloses a method for preparing a high-voltage cathode material by body modification and regeneration of a waste lithium cobaltate material.
    Type: Application
    Filed: April 16, 2021
    Publication date: December 16, 2021
    Inventors: Yingjie Zhang, Peng Dong, Qi Meng, Siyuan Zhou, Qingxiang Li, Shaoqiang Zhou, Jianguo Duan, Xue Li, Yin Liu, Duanyun Chen
  • Patent number: 10686252
    Abstract: An electronic device may be provided with wireless circuitry that includes a radio-frequency transceiver circuit and an antenna. The antenna may be a patch antenna formed from a patch antenna resonating element and an antenna ground. The patch antenna resonating element may be formed from a metal patch on a printed circuit board. The antenna ground may be formed from a metal housing having a planar rear wall that lies in a plane parallel to the metal patch. The radio-frequency transceiver circuit may be coupled to the metal patch through traces on the printed circuit and may be coupled to rear wall of the housing through a screw and a screw boss in the housing. Buttons and other electrical components may be mounted on the printed circuit board and may be coupled to control circuitry on the printed circuit board through the metal patch.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: June 16, 2020
    Assignee: Apple Inc.
    Inventors: Siwen Yong, Qingxiang Li, Yi Jiang, Robert W. Schlub, Umar Azad, Rodney A. Gomez Angulo, Enrique Ayala Vazquez
  • Patent number: 10658744
    Abstract: A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and no on. The portable computing device can include a single piece housing formed from a radio opaque material with a cover formed from a radio transparent material. To implement a wireless interface, an antenna stack-up can be provided that allows an antenna to be mounted to a bottom of the cover. Methods and apparatus are provided for improving wireless performance. For instance, in one embodiment, a metal housing can be thinned to improve antenna performance. As another example, a faraday cage can be formed around speaker drivers to improve antenna performance.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 19, 2020
    Assignee: APPLE INC.
    Inventors: Erik A. Uttermann, Jeremy C. Franklin, Stephen C. McClure, Sean S. Corbin, Qingxiang Li, Rodney A. Gomez Angulo
  • Publication number: 20200044305
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Patent number: 10461395
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 29, 2019
    Assignee: Apple Inc.
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Patent number: 10218052
    Abstract: An electronic device may have hybrid antennas that include slot antenna resonating elements formed from slots in a ground plane and planar inverted-F antenna resonating elements. The planar inverted-F antenna resonating elements may each have a planar metal member that overlaps one of the slots. The slot of each slot antenna resonating element may divide the ground plane into first and second portions. A return path and feed may be coupled in parallel between the planar metal member and the first portion of the ground plane. Tunable components such as tunable inductors may be used to tune the hybrid antennas. A tunable inductor may bridge the slot in hybrid antenna, may be coupled between the planar metal member of the planar inverted-F antenna resonating element and the ground plane, or multiple tunable inductors may bridge the slot on opposing sides of the planar inverted-F antenna resonating element.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: February 26, 2019
    Assignee: Apple Inc.
    Inventors: Mattia Pascolini, Umar Azad, Rodney A. Gomez Angulo, Erdinc Irci, Qingxiang Li, Matthew A. Mow, Harish Rajagopalan, Miroslav Samardzija, Ming-Ju Tsai
  • Patent number: 10008764
    Abstract: An electronic device may have an antenna for providing coverage in wireless communications bands of interest such as a low frequency communications band and a high frequency communications band. The antenna may have an antenna ground and an antenna resonating element. The antenna resonating element may have a high band arm that contributes to a first high band resonance in the high band and may have a low band arm that exhibits a low band resonance in the low band. A passive filter that is coupled between first and second portions of the antenna resonating element may be configured to exhibit a short circuit impedance associated with a bypass path that allows the antenna resonating element to contribute to a second high band resonance in the high band. A tunable inductor coupled to the antenna resonating element may be used to tune the low band resonance.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: June 26, 2018
    Assignee: Apple Inc.
    Inventors: Yi Jiang, Siwen Yong, Gordon Coutts, Lijun Zhang, Qingxiang Li, Robert W. Schlub
  • Patent number: 9965052
    Abstract: A computer stylus may have an elongated body with a metal tube that serves as an antenna ground for an antenna. An antenna resonating element for the antenna may be formed from metal traces that wrap around a longitudinal axis for the elongated body. The antenna may be an inverted-F antenna. A ground antenna feed terminal for the inverted-F antenna may be coupled to the metal tube with a sheet metal member, conductive fabric, and solder. A clip may run along a side of the elongated body at a location that does not overlap the metal traces of the antenna resonating element. The antenna may be fed at a location on an opposing side of the elongated body from the clip. Antenna signals from the inverted-F antenna may be reflected towards the tip by metal structures at the end of the elongated body opposing the tip.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: May 8, 2018
    Assignee: Apple Inc.
    Inventors: Gordon Coutts, Qingxiang Li, Robert W. Schlub, Yi Jiang
  • Patent number: 9923272
    Abstract: An electronic device may include an adjustable power supply, at least one antenna, and associated antenna tuning circuitry. The antenna tuning circuitry may be an integral part of the antenna and may include a control circuit and at least one tunable element. The tunable element may include radio-frequency switches, continuously/semi-continuously adjustable components such as tunable resistors, inductors, and capacitors, and other load circuits that provide desired impedance characteristics. The power supply may provide power supply voltage signals to the antenna tuning circuitry via inductive coupling. The power supply voltage signals may be modulated according to a predetermined lookup table during device startup so that the control circuit is configured to generate desired control signals. These control signals adjust the tunable element so that the antenna can support wireless operation in desired frequency bands.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 20, 2018
    Assignee: Apple Inc.
    Inventors: Robert S. Sorensen, Qingxiang Li, Matthew A. Mow, Jinku Kim
  • Publication number: 20170309988
    Abstract: An electronic device may have a display. A display cover layer and a transparent inner display member may overlap a display pixel layer. The display pixel layer may have an array of display pixels for displaying images for a user. A touch sensor layer may be interposed between the display pixel layer and the transparent display member. A ferromagnetic shielding layer may be mounted below the display pixel layer. A flexible printed circuit containing coils of metal signal lines that form a near-field communications loop antenna may be interposed between the ferromagnetic shielding layer and the display pixel layer. A non-near-field antenna such as an inverted-F antenna may have a resonating element mounted on an inner surface of the display cover layer. The resonating element may be interposed between the transparent display member and the display cover layer.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 26, 2017
    Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. de Jong
  • Patent number: 9766727
    Abstract: A computer stylus may have an elongated body with a tip and an opposing end having components such as a connector and an antenna. Metal structures for the antenna may be supported using a molded plastic support with metal traces or may be formed using flexible printed circuits or other structures. Metal and plastic tubes may be used in forming the body of the stylus. A metal tube may have an opening in which an antenna is mounted. A plastic tube may serve as an outer housing for the stylus and may cover the metal tube and the opening in which the antenna is mounted. A transmission line such as a cable may be coupled to an antenna feed. The cable may pass through an opening in the metal tube and may be covered using a strip of conductive foam.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: September 19, 2017
    Assignee: Apple Inc.
    Inventors: Yi Jiang, Huan-Chu Huang, Mattia Pascolini, Qingxiang Li
  • Patent number: 9728858
    Abstract: An electronic device may be provided with hybrid planar inverted-F slot antennas and indirectly fed slot antennas. A hybrid antenna may be used to form a dual band wireless local area network antenna. An indirectly fed slot antenna may be use to form a cellular telephone antenna. Antenna slots may be formed in a metal electronic device housing wall. The housing wall may have a planar rear portion and sidewall portions that extend upwards from the planar rear portion. The slots may have one or more bends. A hybrid antenna may have a slot antenna portion and a planar inverted-F antenna portion. The planar inverted-F antenna portion may have a metal resonating element patch that is supported by a support structure. The support structure may be a plastic speaker box containing a speaker driver that is not overlapped by the metal resonating element patch.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: August 8, 2017
    Assignee: Apple Inc.
    Inventors: Jiang Zhu, Rodney A. Gomez Angulo, Qingxiang Li, Robert W. Schlub, Hongfei Hu