Patents by Inventor Yi-An Li

Yi-An 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: 20250093676
    Abstract: An optical system includes a fixed assembly, a movable part and a suspension module. The movable part is configured to be connected to an optical module, and the movable part is movable relative to the fixed assembly. The movable part is movable relative to the fixed assembly through the suspension module.
    Type: Application
    Filed: September 13, 2024
    Publication date: March 20, 2025
    Inventors: Yi-An LI, Yi-Ho CHEN
  • Patent number: 12074567
    Abstract: A voltage-controlled oscillator may include an inductor. The inductor may include a first coil coupled to an electronic component. The inductor may include a first coil coupled to the first circuit component, a second coil coupled to the first circuit component via a junction and being in parallel with the first coil, and a shared circuit path coupled to the second circuit component, the first coil, and the second coil, the shared circuit path overlapping the junction. The inductor may be configured to reduce phase noise generated by the electronic component.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: August 27, 2024
    Assignee: Apple Inc.
    Inventors: Yi-An Li, Ahmed L. Hussein, Yi Zhao
  • Patent number: 11652444
    Abstract: A voltage-controlled oscillator may include an inductor. The inductor may include a first coil coupled to an electronic component. The inductor may include a first coil coupled to the first circuit component, a second coil coupled to the first circuit component via a junction and being in parallel with the first coil, and a shared circuit path coupled to the second circuit component, the first coil, and the second coil, the shared circuit path overlapping the junction. The inductor may be configured to reduce phase noise generated by the electronic component.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: May 16, 2023
    Assignee: Apple Inc.
    Inventors: Yi-An Li, Ahmed I. Hussein, Yi Zhao
  • Publication number: 20230092992
    Abstract: A voltage-controlled oscillator may include an inductor. The inductor may include a first coil coupled to an electronic component. The inductor may include a first coil coupled to the first circuit component, a second coil coupled to the first circuit component via a junction and being in parallel with the first coil, and a shared circuit path coupled to the second circuit component, the first coil, and the second coil, the shared circuit path overlapping the junction. The inductor may be configured to reduce phase noise generated by the electronic component.
    Type: Application
    Filed: September 20, 2021
    Publication date: March 23, 2023
    Inventors: Yi-An Li, Ahmed I. Hussein, Yi Zhao
  • Publication number: 20230086524
    Abstract: A voltage-controlled oscillator may include an inductor. The inductor may include a first coil coupled to an electronic component. The inductor may include a first coil coupled to the first circuit component, a second coil coupled to the first circuit component via a junction and being in parallel with the first coil, and a shared circuit path coupled to the second circuit component, the first coil, and the second coil, the shared circuit path overlapping the junction. The inductor may be configured to reduce phase noise generated by the electronic component.
    Type: Application
    Filed: September 2, 2022
    Publication date: March 23, 2023
    Inventors: Yi-An Li, Ahmed L. Hussein, Yi Zhao
  • Patent number: 11075784
    Abstract: The present disclosure is directed a wideband multiphase transmitter with two-point modulation. A transmitter includes a control circuit configured to receive a source signal having amplitude and phase components. Using the phase component, the control circuit generates a frequency control signal and a phase jump signal. The transmitter further includes a phase conversion circuit configured to generate a first phase-modulated signal using the phase component and the frequency control signal. The phase conversion circuit is also configured to adjust the phase of the first phase-modulated signal using the phase jump signal. The first phase-modulate signal and the amplitude component are provided to an amplifier, which generates a transmit signal based thereon.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: July 27, 2021
    Assignee: Apple Inc.
    Inventors: Mark T. Dawkins, Yi-An Li, Yen-Ling Huang
  • Publication number: 20170132235
    Abstract: A web content extraction system includes a web structure analyzing module, a metadata determining module, a web correlation generating module and a storage path routing module. The web structure analyzing module is configured to divide a web content of a first web into a plurality of metadata and a plurality of ordinary data. The metadata determining module is configured to divide the plurality of metadata into a plurality of target metadata and a plurality of non-target metadata. The plurality of target metadata is corresponding to a second web. The web correlation generating module is configured to generate a correlation level information between the first web and the second web. The storage path routing module is configured to route a web content of the second web to a first storage path or a second storage path and route the ordinary data to the first storage path.
    Type: Application
    Filed: November 25, 2015
    Publication date: May 11, 2017
    Inventors: Ming-Lu LIN, Hsin-Tse LU, Yuan-Chang CHEN, Yi-An LI, Chao-Chin YANG
  • Patent number: 9590676
    Abstract: A signal receiving apparatus includes: a first amplifying device, a second amplifying device, a feedback device, and a mixing device, wherein the mixing device is a passive mixer, the second amplifying device is arranged to provide an input impedance looking into an input terminal of the second amplifying device to fall within a first impedance range when the second amplifying device operates in a first frequency range, the second amplifying device is arranged to provide the input impedance looking into the input terminal of the second amplifying device to fall within a second impedance range when the second amplifying device operates in a second frequency range, the second frequency range is different from the first frequency range, and the second impedance range is different from the first impedance range.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 7, 2017
    Assignee: MEDIATEK INC.
    Inventors: Chia-Hsin Wu, Yi-An Li
  • Publication number: 20160142082
    Abstract: A signal receiving apparatus includes: a first amplifying device, a second amplifying device, a feedback device, and a mixing device, wherein the mixing device is a passive mixer, the second amplifying device is arranged to provide an input impedance looking into an input terminal of the second amplifying device to fall within a first impedance range when the second amplifying device operates in a first frequency range, the second amplifying device is arranged to provide the input impedance looking into the input terminal of the second amplifying device to fall within a second impedance range when the second amplifying device operates in a second frequency range, the second frequency range is different from the first frequency range, and the second impedance range is different from the first impedance range.
    Type: Application
    Filed: March 23, 2015
    Publication date: May 19, 2016
    Inventors: Chia-Hsin Wu, Yi-An Li
  • Patent number: 9100083
    Abstract: A radio-frequency (RF) front-end supporting at least a first and second wireless communication bands includes a mixer arranged for mixing a received signal with a first local oscillation signal when the shared receiver front-end performs the reception operation according to the first wireless communication band, and for mixing the received signal with a second local oscillation signal when the shared receiver front-end performs the reception operation according to the second wireless communication band, wherein the first and second local oscillation signals are different in frequency.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: August 4, 2015
    Assignee: MEDIATEK INC.
    Inventors: Chia-Hsin Wu, Chih-Hsien Shen, Jui-Lin Hsu, Chih-Hung Lee, Yi-An Li
  • Patent number: 9083293
    Abstract: A signal transceiver includes a first power amplifier coupled to a chip output port of a chip; an impedance transforming circuit; a switching circuit arranged to selectively couple the chip output port to a first port of the impedance transforming circuit; and a receiving amplifier coupled to a second port of the impedance transforming circuit.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: July 14, 2015
    Assignee: MEDIATEK INC.
    Inventors: George Chien, Chia-Hsin Wu, Tsung-Ming Chen, Yi-An Li
  • Publication number: 20130309979
    Abstract: A radio-frequency (RF) front-end supporting at least a first and second wireless communication bands includes a mixer arranged for mixing a received signal with a first local oscillation signal when the shared receiver front-end performs the reception operation according to the first wireless communication band, and for mixing the received signal with a second local oscillation signal when the shared receiver front-end performs the reception operation according to the second wireless communication band, wherein the first and second local oscillation signals are different in frequency.
    Type: Application
    Filed: March 12, 2013
    Publication date: November 21, 2013
    Applicant: MEDIATEK INC.
    Inventors: Chia-Hsin Wu, Chih-Hsien Shen, Jui-Lin Hsu, Chih-Hung Lee, Yi-An Li
  • Publication number: 20120295556
    Abstract: A signal transceiver includes a first power amplifier coupled to a chip output port of a chip; an impedance transforming circuit; a switching circuit arranged to selectively couple the chip output port to a first port of the impedance transforming circuit; and a receiving amplifier coupled to a second port of the impedance transforming circuit.
    Type: Application
    Filed: May 16, 2012
    Publication date: November 22, 2012
    Inventors: George Chien, Chia-Hsin Wu, Tsung-Ming Chen, Yi-An Li