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Qingxiang Li patents

Recent patents with Qingxiang Li listed as an inventor - additional entries may be under other spellings.


Qingxiang Li - Related organizations: Apple Inc. patents, Apple, Inc. patents

Computer stylus with antenna

01/12/17 - 20170010697 - 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
Inventors: Yi Jiang, Huan-chu Huang, Mattia Pascolini, Qingxiang Li

Tunable multiband antenna with passive and active circuitry

01/05/17 - 20170005397 - 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
Inventors: Yi Jiang, Siwen Yong, Gordon Coutts, Lijun Zhang, Qingxiang Li, Robert W. Schlub

Electronic device with tunable hybrid antennas

11/17/16 - 20160336643 - 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
Inventors: Mattia Pascolini, Umar Azad, Rodney A. Gomez Angulo, Erdinc Irci, Qingxiang Li, Matthew A. Mow, Harish Rajagopalan, Miroslav Samardzija, Ming-ju Tsai

Electronic device cavity antennas with slots and monopoles

04/14/16 - 20160104944 - An electronic device may be provided with wireless circuitry. The wireless circuitry may include cavity antennas. A cavity antenna may be formed from a metal antenna cavity and resonating element structures. The metal antenna cavity may be formed from metal traces on a dielectric carrier. The resonating element structures may
Inventors: Harish Rajagopalan, Huan-chu Huang, Ke Sun, Qingxiang Li, Robert W. Schlub, Rodney A. Gomez Angulo, Umar Azad

Electronic device with peripheral display antenna

02/25/16 - 20160056526 - An electronic device may be provided with electrical components mounted in a housing. The electronic device may include wireless transceiver circuitry and antenna structures. A display may be mounted in the housing. The display may have a transparent layer such as display cover layer. The display cover layer may have
Inventors: Qingxiang Li, Robert W. Schub, Erik G. De Jong, Yuehui Ouyang, Siwen Yong, Miroslav Samardzija, Yiren Wang, Jiang Zhu

Electronic device with patch antenna

12/17/15 - 20150364815 - 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
Inventors: Siwen Yong, Qingxiang Li, Yi Jiang, Robert W. Schlub, Umar Azad, Rodney A. Gomez Angulo, Enrique Ayala Vazquez

Antenna for computer stylus

12/17/15 - 20150363013 - 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
Inventors: Gordon Coutts, Qingxiang Li, Robert W. Schlub, Yi Jiang

Electronic device having array of satellite navigation system antennas

11/26/15 - 20150338523 - An electronic device may be provided with wireless circuitry. The wireless circuitry may include a pair of antennas. The antennas may be formed from inverted-F antenna resonating elements located along one of the peripheral edges of a device housing. The housing may be formed of metal and may serve as
Inventors: Harish Rajagopalan, Jiang Zhu, Qingxiang Li, Robert W. Schlub, Rodney A. Gomez Angulo

Electronic device with near-field antenna operating through display

10/29/15 - 20150311960 - 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
Inventors: Miroslav Samardzija, Yiren Wang, Yuehui Ouyang, Joseph Hakim, Qingxiang Li, Robert W. Schlub, Ruben Caballero, Siwen Yong, Erik G. De Jong

Electronic devices with hybrid antennas

10/29/15 - 20150311594 - 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
Inventors: Jiang Zhu, Rodney A. Gomez Angulo, Qingxiang Li, Robert W. Schlub, Hongfei Hu

Structures for shielding and mounting components in electronic devices

10/01/15 - 20150280313 - An electronic device may be provided with a conductive housing. An antenna window structure may be formed in an opening in the housing. The antenna window structure may have an antenna support structure that is attached to the conductive housing and that supports antenna structures. An antenna window cap may
Inventors: Emery A. Sanford, Qingxiang Li, Lijun Zhang, Anthony S. Montevirgen, Teodor Dabov, Erik G. De Jong, Wey-jiun Lin

Electronic device with slot antenna and proximity sensor

09/24/15 - 20150270619 - An electronic device may be provided with slot antennas. A slot antenna may be formed from metal structures that have a dielectric gap defining an antenna slot. The metal structures may include multiple metal layers that overlap a plastic antenna window and that serve as capacitive electrodes in a capacitive
Inventors: Jiang Zhu, Rodney A. Gomez Angulo, Qingxiang Li

Electronic device with indirectly fed slot antennas

09/24/15 - 20150270618 - An electronic device may be provided with antennas. Antennas for the electronic device may be formed from slot antenna structures. A slot antenna structure may be formed from portions of a metal housing for an electronic device. The slots of the slot antenna structures may be indirectly fed to form
Inventors: Jiang Zhu, Harish Rajagopalan, Rodney A. Gomez Angulo, Qingxiang Li, Robert W. Schlub, John Raff

Electronic device with dual clutch barrel cavity antennas

09/24/15 - 20150270599 - An electronic device has antennas formed from cavity antenna structures. The electronic device may have a metal housing. The metal housing may have an upper housing in which a component such as a display is mounted and a lower housing in which a component such as a keyboard is mounted.
Inventors: Jerzy Guterman, Qingxiang Li, Mattia Pascolini

Electronic device with dual clutch barrel cavity antennas

09/24/15 - 20150270598 - An electronic device has antennas formed from cavity antenna structures. The electronic device may have a metal housing. The metal housing may have an upper housing in which a component such as a display is mounted and a lower housing in which a component such as a keyboard is mounted.
Inventors: Jerzy Guterman, Qingxiang Li, Mattia Pascolini

Methods and apparatus for controlling tunable antenna systems

09/10/15 - 20150255869 - 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
Inventors: Robert S. Sorensen, Qingxiang Li, Matthew A. Mow, Jinku Kim

Electronic device with dual clutch barrel cavity antennas

09/10/15 - 20150255851 - An electronic device has antennas formed from cavity antenna structures. The electronic device may have a metal housing. The metal housing may have an upper housing in which a component such as a display is mounted and a lower housing in which a component such as a keyboard is mounted.
Inventors: Jerzy Guterman, Qingxiang Li, Mattia Pascolini

Electronic device with satellite navigation system slot antennas

08/20/15 - 20150236426 - An electronic device may be provided with a satellite positioning system slot antenna. The slot antenna may include a slot in a metal housing. The slot may be directly fed or indirectly fed. In indirectly fed configurations, the antenna may include a near-field-coupled antenna feed structure that is near-field coupled
Inventors: Jiang Zhu, Harish Rajagopalan, Rodney A. Gomez Angulo, Qingxiang Li, Robert W. Schlub

Electronic device with balanced-fed satellite communications antennas

04/23/15 - 20150109167 - An electronic device may include balance-fed antenna structures that do not have direct paths to ground. The antenna structures may serve as a Global Positioning System (GPS) antenna and may have a dipole structure having a first and second antenna resonating element arms. The antenna structures may include a conductive
Inventors: Salih Yarga, Miroslav Samardzija, Enrique Ayala Vazquez, Harish Rajagopalan, Qingxiang Li, Robert W. Schlub

Electronic device with antennas isolated using phase shifter

04/09/15 - 20150099474 - An electronic device may be provided with a primary antenna that is used for transmitting and receiving signals and a secondary antenna that is used for receiving signals. The primary and secondary antennas may be used together in a diversity arrangement when receiving signals. The electronic device may have a
Inventors: Salih Yarga, Miroslav Samardzija, Qingxiang Li, Robert W. Schlub

Wireless device with dynamically adjusted maximum transmit powers

10/23/14 - 20140315592 - An electronic device may be provided with antenna structures. Proximity sensors and other sensors may be used in determining how the electronic device is being operated. Wireless circuitry such as a radio-frequency transmitter associated with a cellular telephone communications band, a wireless local area network band, or other communications band
Inventors: Robert W. Schlub, Yi Jiang, Qingxiang Li, Digvijay Jadhav, Matthew Fong, Brian Mariner

Tunable multiband antenna with passive and active circuitry

10/23/14 - 20140313087 - 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
Inventors: Yi Jiang, Siwen Yong, Gordon Coutts, Lijun Zhang, Qingxiang Li, Robert W. Schlub

Antennas mounted under dielectric plates

10/02/14 - 20140292591 - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces
Inventors: Qingxiang Li, Robert W. Schlub, Fletcher R. Rothkopf, Adam D. Mittleman, Yi Jiang, Emily Mcmilin, Li-jun Zhang

Electronic device with reduced emitted radiation during loaded antenna operating conditions

10/02/14 - 20140292587 - An electronic device may have an antenna for providing coverage in wireless communications bands of interest. The wireless communications bands may include a communications band at a first frequency. The antenna may have a parasitic antenna resonating element that supports a low efficiency resonance. In response to operation of the
Inventors: Salih Yarga, Qingxiang Li, Robert W. Schlub

Electronic device with capacitively loaded antenna

09/11/14 - 20140253392 - An electronic device may have an antenna for providing coverage in wireless communications bands of interest such as a low frequency communications band, a middle frequency communications band, and a high frequency communications band. Slot structures in the antenna that might reduce efficiency in the high frequency communications band may
Inventors: Salih Yarga, Qingxiang Li, Robert W. Schlub

Antenna, shielding and grounding

07/03/14 - 20140185857 - A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so 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.
Inventors: Eric A. Uttermann, Jeremy C. Franklin, Stephen C. Mcclure, Sean S. Corbin, Qingxiang Li, Rodney A. Gomez Angulo

Electronic device with conductive fabric shield wall

04/24/14 - 20140112511 - An electronic device may have a housing such as a metal housing. A display may be mounted in the metal housing. Antenna structures may be mounted in the housing under an inactive peripheral portion of the display. Integrated circuits and other electrical components may be mounted in the housing under
Inventors: Sean S. Corbin, Taylor H. Gilbert, Rodney A. Gomez Angulo, Qingxiang Li, Stephen R. Mcclure, Julio C. Quintero, Miroslav Samardzija, Robert W. Schlub, Jiang Zhu

Antenna structures and electrical components with grounding

04/24/14 - 20140111684 - An electronic device may have a conductive housing with an antenna window. Antenna structures may be mounted adjacent to the antenna window. The antenna structures may have a dielectric carrier. Patterned metal antenna traces may be formed on the surface of the dielectric carrier. A proximity sensor may be formed
Inventors: Sean S. Corbin, Taylor H. Gilbert, Rodney A. Gomez Angulo, Yi Jiang, Conor P. Lenahan, Qingxiang Li, Stephen R. Mcclure, Robert W. Schlub, Salih Yarga, Jiang Zhu

Tunable multiband antenna with dielectric carrier

04/10/14 - 20140100004 - Antenna structures for an antenna may be formed from a dielectric carrier with metal structures. The metal structures may be patterned to cover all sides of the dielectric carrier. The dielectric carrier may have a shape with six sides or other shape that creates a three-dimensional layout for the antenna
Inventors: Salih Yarga, Qingxiang Li, Matthew A. Mow, Robert W. Schlub

Distributed loop speaker enclosure antenna

03/27/14 - 20140086441 - An electronic device may be provided with antenna structures. The antenna structures may be formed using a dielectric carrier structure such as a speaker enclosure, so that interior space within the electronic device that is occupied by a speaker can be used in forming an antenna. A speaker driver may
Inventors: Jiang Zhu, Qingxiang Li, Robert W. Schlub, Ruben Caballero

Distributed loop antenna with multiple subloops

03/27/14 - 20140085161 - An electronic device may be provided with antenna structures. The antenna structures may be formed using a dielectric carrier structure. The antenna structures may have first and second loop antenna resonating elements. The first loop antenna resonating element may indirectly feed the second loop antenna resonating element. The second loop
Inventors: Jiang Zhu, Qingxiang Li, Robert W. Schlub, Ruben Caballero

Electronic device plate antenna

01/09/14 - 20140009355 - An electronic device may be provided with antenna structures. The antenna structures may include a plate antenna. The electronic device may have a conductive housing such as a metal housing with an opening. A dielectric antenna window may be formed within the opening. A dielectric support structure such as a
Inventors: Miroslav Samardzija, Rodney A. Gomez Angulo, Qingxiang Li, Robert W. Schlub, Ruben Caballero

Antennas integrated with speakers and methods for suppressing cavity modes

01/09/14 - 20140009344 - An electronic device may be provided with a speaker box antenna for transmitting and receiving radio-frequency signals. A speaker box antenna may be formed from a hollow dielectric speaker box containing a speaker driver. An opening in the speaker box adjacent to the speaker driver may be aligned with a
Inventors: Jiang Zhu, Qingxiang Li, Rodney A. Gomez Angulo, Miroslav Samardzija, Gordon Coutts, Robert W. Schlub

Structures for shielding and mounting components in electronic devices

12/19/13 - 20130335275 - An electronic device may be provided with a conductive housing. An antenna window structure may be formed in an opening in the housing. The antenna window structure may have an antenna support structure that is attached to the conductive housing and that supports antenna structures. An antenna window cap may
Inventors: Emery A. Sanford, Qingxiang Li, Lijun Zhang, Anthony S. Montevirgen, Teodor Dabov, Erik G.p. De Jong, Wey-jiun Lin

Antenna and proximity sensor structures having printed circuit and dielectric carrier layers

11/14/13 - 20130300618 - An electronic device may have a conductive housing with an antenna window. A display cover layer may be mounted on the front face of the device. Antenna and proximity sensor structures may include a dielectric support structure with a notch. The antenna window may have a protruding portion that extends
Inventors: Salih Yarga, Nirali Shah, Qingxiang Li, Robert W. Schlub

Corner bracket slot antennas

11/07/13 - 20130293424 - A display cover layer may be mounted in an electronic device housing using housing structures such as corner brackets. A slot antenna may be formed from a corner bracket opening, metal traces on a hollow plastic support structure, or other conductive structures. The slot antenna may have a main portion
Inventors: Jiang Zhu, Qingxiang Li, Robert W. Schlub, Miroslav Samardzija, Gordon Coutts, Rodney A. Gomez Angulo, Yi Jiang, Boon W. Shiu, Salih Yarga, Emily B. Mcmilin, Ruben Caballero

Antenna with variable distributed capacitance

10/24/13 - 20130278480 - Electronic devices may be provided with antennas. An antenna may be formed from conductive antenna structures that include a frequency-dependent distributed capacitor. The antenna may include an antenna ground and an antenna resonating element that are separated by a gap. A low pass filter circuit may bridge the gap. The
Inventors: Emily B. Mcmilin, Qingxiang Li, Robert W. Schlub

Electronic device with tunable and fixed antennas

09/19/13 - 20130241800 - Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. The antennas may include a non-tunable antenna and a tunable antenna. The non-tunable antenna may serve as the primary antenna in the electronic device and the tunable antenna may
Inventors: Robert W. Schlub, Rodney A. Gomez Angulo, Qingxiang Li, Emily B. Mcmilin, Salih Yarga, Yi Jiang

Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control

09/19/13 - 20130241780 - An electronic device may have a housing in which an antenna is mounted. An antenna window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit
Inventors: David T. Amm, Robert W. Schlub, Omar S. Leung, Brian M. King, Qingxiang Li, Enrique Ayala Vazquez, Rodney A. Gomez Angulo, Yi Jiang, Ruben Caballero

Antenna with folded monopole and loop modes

08/22/13 - 20130214986 - Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antennas. An antenna may have an antenna ground that is configured to form a cavity for the antenna. The antenna ground may be formed on a support structure. The antenna

Electronic device antennas with filter and tuning circuitry

08/22/13 - 20130214979 - An electronic device may have an antenna that includes conductive antenna structures forming an antenna resonating element and an antenna ground. A band-stop filter may be coupled between first and second portions of the conductive structures. The band-stop filter may be formed from multiple series-connected resonant circuits. The band-stop filter

Methods and apparatus for controlling tunable antenna systems

06/20/13 - 20130154897 - 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

Multi-element antenna structure with wrapped substrate

09/06/12 - 20120223866 - Antennas are provided for electronic devices such as portable computers. Multiple resonating elements may be formed on a flexible antenna resonating element substrate. The flexible antenna resonating element substrate may have a first antenna resonating element at one end and a second antenna resonating element at an opposing end. The

Antenna structures with carriers and shields

09/06/12 - 20120223865 - Antennas are provided for electronic devices such as portable computers. An electronic device may have a housing in which an antenna is mounted. The housing may be formed of conductive materials. A dielectric window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna

Antenna with integrated proximity sensor for proximity-based radio-frequency power control

08/23/12 - 20120214412 - An electronic device may have a housing in which an antenna is mounted. An antenna window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit

Antenna, shielding and grounding

08/02/12 - 20120194393 - A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so 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.

Hybrid antennas for electronic devices

04/19/12 - 20120092221 - A portable electronic device is provided that has a hybrid antenna. The hybrid antenna may include a slot antenna structure and a planar inverted-F antenna structure. The planar inverted-F antenna structure may be formed from traces on a flex circuit substrate. A backside trace may form a series capacitance for

Antennas mounted under dielectric plates

03/01/12 - 20120050114 - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces

Methods for manufacturing devices with flex circuits and radio-frequency cables

12/22/11 - 20110313708 - A flex circuit may have test structures and antenna structures. The test structures may include test capacitors and transmission lines. The performance of the test structures may be measured using test equipment. Pass/fail criteria may be applied to the flex circuit based on the measured values. If the flex circuit

Bezel gap antennas

06/09/11 - 20110136447 - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. A parallel-fed loop antenna may be formed from portions of an electronic device bezel and a ground plane. The antenna may operate in multiple communications bands. An impedance matching

Bezel gap antennas

06/09/11 - 20110133995 - Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. A parallel-fed loop antenna may be formed from portions of an electronic device bezel and a ground plane. The antenna may operate in multiple communications bands. An impedance matching

Cavity-backed antenna for tablet device

03/03/11 - 20110050509 - An electronic device may have a cavity antenna. The cavity antenna may have a logo-shaped dielectric window. An antenna resonating element for the cavity antenna may be formed from conductive traces on a printed circuit board. An antenna resonating element may be formed from the traces. The antenna resonating element

Electronic devices with capacitive proximity sensors for proximity-based radio-frequency power control

01/20/11 - 20110012793 - An electronic device may have a housing in which an antenna is mounted. An antenna window may be mounted in the housing to allow radio-frequency signals to be transmitted from the antenna and to allow the antenna to receive radio-frequency signals. Near-field radiation limits may be satisfied by reducing transmit

Hybrid antennas for electronic devices

10/15/09 - 20090256758 - A portable electronic device is provided that has a hybrid antenna. The hybrid antenna may include a slot antenna structure and a planar inverted-F antenna structure. The planar inverted-F antenna structure may be formed from traces on a flex circuit substrate. A backside trace may form a series capacitance for


### Qingxiang Li patent invention listings

The bibliographic references displayed about Qingxiang Li's patents are for a recent sample of Qingxiang Li's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Qingxiang Li filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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