Patents by Inventor YuHao LIU

YuHao 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: 20220014177
    Abstract: An acoustic wave device with a bent section is disclosed. The acoustic wave device includes a piezoelectric layer and an interdigital transducer electrode on the piezoelectric layer. The bent section is arranged to create a curvature in a waveguide of the acoustic wave device to suppress a transverse spurious mode of the acoustic wave device.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Inventors: Yuhao Liu, Jiansong Liu, Chun Sing Lam
  • Publication number: 20220003731
    Abstract: An exemplary portable automated device is developed for in vitro testing of blood vascular occlusion as a result of sickle cell disease. The portable automated device may be controlled by a computer (e.g., smartphone) application. Calibration of the portable device may be performed using a component of known impedance value. With the developed portable automated device, analysis may be performed on sickle cell samples on a microfluidic platform that mimics the structure of human capillaries. Significant differences in cell impedance signals may be observed between sickle cells and normal cells, as well as between sickle cells under hypoxia and normoxia conditions.
    Type: Application
    Filed: May 6, 2021
    Publication date: January 6, 2022
    Inventors: E DU, Yuhao QIANG, Darryl DIEUJUSTE, Jia LIU
  • Publication number: 20210393204
    Abstract: Skin-mounted or epidermal devices and methods for monitoring biofluids are disclosed. The devices comprise a functional substrate that is mechanically and/or thermally matched to skin to provide durable adhesion for long-term wear. The functional substrates allow for the microfluidic transport of biofluids from the skin to one or more sensors that measure and/or detect biological parameters, such as rate of biofluid production, biofluid volume, and biomarker concentration. Sensors within the devices may be mechanical, electrical or chemical, with colorimetric indicators being observable by the naked eye or with a portable electronic device (e.g., a smartphone). By monitoring changes in an individual's health state over time, the disclosed devices may provide early indications of abnormal conditions.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 23, 2021
    Applicant: The Board of Trustees of the University of Illinois
    Inventors: John A. ROGERS, Ahyeon KOH, Daeshik KANG, YuHao LIU, Xian HUANG
  • Patent number: 11195044
    Abstract: The invention belongs to the field of computer vision technology, and provides a fully automatic natural image matting method. For image matting of a single image, it is mainly composed of the extraction of high-level semantic features and low-level structural features, the filtering of pyramid features, the extraction of spatial structure information, and the late optimization of the discriminator network. The invention can generate accurate alpha matte without any auxiliary information, saving the time for scientific researchers to mark auxiliary information and the interaction time when users use it.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: December 7, 2021
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xin Yang, Xiaopeng Wei, Qiang Zhang, Yuhao Liu, Yu Qiao
  • Publication number: 20210353246
    Abstract: A real-time spatial magnetic positioning device, a radiographic imaging system and a magnetic positioning method is provided. The radiographic imaging system comprises a radiation source, a collimator, a flat panel detector, and a real-time spatial magnetic positioning device, wherein the magnetic positioning device comprises a processor, a magnetic field generating device and a magnetic sensor array; the magnetic field generating device is arranged coaxially with the collimator, a plurality of sensors of the magnetic sensor array is distributed on the flat panel detector; the magnetic field generating device is configured to generate an alternating magnetic field, the magnetic sensors are capable of independently detecting magnetic induction intensity in real time, and sending real-time detected data to the processor, and the processor determines a position relationship between the collimator and the flat panel detector according to the data detected by respective magnetic sensors in real time.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 18, 2021
    Inventors: Yuhao LIU, Jianqiang LIU
  • Patent number: 11165411
    Abstract: An acoustic wave device with a bent section is disclosed. The acoustic wave device includes a piezoelectric layer and an interdigital transducer electrode on the piezoelectric layer. The bent section is arranged to create a curvature in a waveguide of the acoustic wave device to suppress a transverse spurious mode of the acoustic wave device.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: November 2, 2021
    Assignee: Skyworks Solutions, Inc.
    Inventors: Yuhao Liu, Jiansong Liu, Chun Sing Lam
  • Patent number: 11148663
    Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to assign each of a plurality of targets to a classification based on respective motions of the targets at an initiation of a turn by a host vehicle, determine a distance threshold for each target associated with the classification, and perform a threat assessment on each of the plurality of targets having a respective distance from the host vehicle that is below a distance threshold and a respective time to collision below a time threshold.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: October 19, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Christopher Pontisakos, Yuhao Liu, Steven J. Szwabowski, Alex Maurice Miller
  • Patent number: 11064946
    Abstract: Skin-mounted or epidermal devices and methods for monitoring biofluids are disclosed. The devices comprise a functional substrate that is mechanically and/or thermally matched to skin to provide durable adhesion for long-term wear. The functional substrates allow for the microfluidic transport of biofluids from the skin to one or more sensors that measure and/or detect biological parameters, such as rate of biofluid production, biofluid volume, and biomarker concentration. Sensors within the devices may be mechanical, electrical or chemical, with colorimetric indicators being observable by the naked eye or with a portable electronic device (e.g., a smartphone). By monitoring changes in an individual's health state over time, the disclosed devices may provide early indications of abnormal conditions.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: July 20, 2021
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: John A. Rogers, Ahyeon Koh, Daeshik Kang, YuHao Liu, Xian Huang
  • Publication number: 20210216806
    Abstract: The invention belongs to the field of computer vision technology, and provides a fully automatic natural image matting method. For image matting of a single image, it is mainly composed of the extraction of high-level semantic features and low-level structural features, the filtering of pyramid features, the extraction of spatial structure information, and the late optimization of the discriminator network. The invention can generate accurate alpha matte without any auxiliary information, saving the time for scientific researchers to mark auxiliary information and the interaction time when users use it.
    Type: Application
    Filed: May 13, 2020
    Publication date: July 15, 2021
    Inventors: Xin YANG, Xiaopeng WEI, Qiang ZHANG, Yuhao LIU, Yu QIAO
  • Publication number: 20210114565
    Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to identify an initial lateral distance and an initial longitudinal distance of a host vehicle in a turn at an initiation of the turn, predict a heading angle of the host vehicle at a specified time after the initiation of the turn, predict a final lateral distance and a final longitudinal distance between the host vehicle and a target at the specified time based on the identified lateral distance, the identified longitudinal position, and the predicted heading angle, determine a lateral offset at a longitudinal time to collision based on the final lateral distance and the final longitudinal distance, and actuate a brake of the host vehicle according to a threat assessment based on the lateral offset.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 22, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: Yuhao Liu, Christopher Pontisakos, Steven Joseph Szwabowski, Alex Maurice Miller
  • Patent number: 10985224
    Abstract: Provided is a display panel having a display area including a first display area and a second display area. The display panel includes: a substrate; an array layer; a display layer including light-emitting elements each including an anode, a light-emitting layer and a cathode that are sequentially stacked; the light-emitting elements comprises first light-emitting elements and second light-emitting elements; a state switching layer located at a side of the display layer facing away from a display surface of the display panel and located in the first display area, wherein in a direction perpendicular to the display panel, the state switching layer overlaps the first light-emitting elements; the state switching layer is switchable between a first state and a second state, and the state switching layer has a smaller light transmittance in the first state than in the second state; and an optical element.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: April 20, 2021
    Assignee: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yuhao Liu, Mingzhi Dai, Jinghua Niu
  • Publication number: 20210111692
    Abstract: Aspects of this disclosure relate to a bulk acoustic wave device with a floating raised frame structure. The bulk acoustic wave device includes a first electrode, a second electrode, a piezoelectric layer positioned between the first electrode and the second electrode, and a floating raised frame structure positioned on a same side of the piezoelectric layer as the first electrode and spaced apart from the first electrode. The floating raised frame structure is at a floating potential. The bulk acoustic wave device can suppress a raised frame mode. Related methods, filters, multiplexers, radio frequency front ends, radio frequency modules, and wireless communication devices are disclosed.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Jiansong Liu, Yuhao Liu, Kwang Jae Shin, Chun Sing Lam
  • Publication number: 20210101588
    Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to assign each of a plurality of targets to a classification based on respective motions of the targets at an initiation of a turn by a host vehicle, determine a distance threshold for each target associated with the classification, and perform a threat assessment on each of the plurality of targets having a respective distance from the host vehicle that is below a distance threshold and a respective time to collision below a time threshold.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 8, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: Christopher Pontisakos, Yuhao Liu, Steven J. Szwabowski, Alex Maurice Miller
  • Publication number: 20210091147
    Abstract: Provided is a display panel having a display area including a first display area and a second display area. The display panel includes: a substrate; an array layer; a display layer including light-emitting elements each including an anode, a light-emitting layer and a cathode that are sequentially stacked; the light-emitting elements comprises first light-emitting elements and second light-emitting elements; a state switching layer located at a side of the display layer facing away from a display surface of the display panel and located in the first display area, wherein in a direction perpendicular to the display panel, the state switching layer overlaps the first light-emitting elements; the state switching layer is switchable between a first state and a second state, and the state switching layer has a smaller light transmittance in the first state than in the second state; and an optical element.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 25, 2021
    Applicant: Shanghai Tianma AM-OLED Co., Ltd.
    Inventors: Yuhao LIU, Mingzhi DAI, Jinghua NIU
  • Publication number: 20210061241
    Abstract: A computer includes a processor and a memory, the memory including instructions executable by the processor to predict a collision time between a corner point of a host vehicle and a target vehicle, predict a reach time for the corner point of the host vehicle to reach the target vehicle based on a predicted relative heading angle between the host vehicle and the target vehicle, and determine a threat number based on the lower of the collision time and the reach time.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 4, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: YUHAO LIU, ALEX MAURICE MILLER, CHRISTOPHER PONTISAKOS, PURUSHOTHAMAN RAYALSAMY
  • Publication number: 20210061266
    Abstract: A computer includes a processor and a memory, the memory storing instructions executable by the processor to determine at least one of: a brake threat number of a host vehicle, a brake threat number of a target vehicle, a steering threat number, or an acceleration threat number and to actuate the host vehicle to change at least one of direction or speed based on at least one of the threat numbers. The brake threat number of the host vehicle is based on a predicted lateral distance between the host vehicle and the target vehicle. The brake threat number of the target vehicle is based on a velocity of the target vehicle adjusted by an acceleration of the target vehicle and an actuation time of a brake. The steering threat number is a lateral acceleration being a predicted lateral distance adjusted by an actuation time of a steering component. The acceleration threat number is based on a predicted lateral offset adjusted by a predicted heading angle of the host vehicle.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 4, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: CHRISTOPHER PONTISAKOS, YUHAO LIU, ALEX MAURICE MILLER, PURUSHOTHAMAN RAYALSAMY
  • Patent number: 10939526
    Abstract: A driver circuit for lighting applications that includes a power input circuit for receiving power; a light emitting diode (LED) output current circuit for interfacing with a light source; and a light emitting diode (LED) power supply circuit for controlling current to the light emitting diode (LED) output current circuit. A controller circuit is present in the circuit for signaling the light emitting power supply (LED) to control current to the light emitting diode (LED) output current circuit. The controller is reset by removing power to the controller. A smoothing capacitor is present for stabilizing at least an output voltage. The circuit further includes a current rectifying circuit that prohibits back current traveling from the smoothing capacitor to the controller circuit when the AC power is off.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: March 2, 2021
    Assignee: LEDVANCE LLC
    Inventors: Yuhao Liu, Nilesh Patel, Ming Li
  • Publication number: 20210037629
    Abstract: A driver circuit that includes an input side including a power input circuit and an output side including a light emitting diode (LED) output current circuit. The output side of the driver circuit includes an output smoothing capacitor for controlling flicker percentage. A light emitting diode (LED) power supply circuit is present between the input side and the output side for controlling current from the AC power input circuit to the light emitting diode (LED) output current circuit. The LED power supply circuit includes at least two linear current regulators that are connected in parallel. The circuit also includes a controller circuit including a controller for signaling the light emitting diode (LED) power supply to control current to the light emitting diode (LED) output current circuit to provide a lighting characteristic.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 4, 2021
    Inventors: Yuhao Liu, Nilesh Patel, Ming Li
  • Publication number: 20200397326
    Abstract: The provided systems, methods and devices describe lightweight, wireless tissue monitoring devices that are capable of establishing conformal contact due to the flexibility or bendability of the device. The described systems and devices are useful, for example, for skin-mounted intraoperative monitoring of nerve-muscle activity. The present systems and methods are versatile and may be used for a variety of tissues (e.g. skin, organs, muscles, nerves, etc.) to measure a variety of different parameterps (e.g. electric signals, electric potentials, electromyography, movement, vibration, acoustic signals, response to various stimuli, etc.).
    Type: Application
    Filed: February 22, 2019
    Publication date: December 24, 2020
    Inventors: John A. ROGERS, Michel KLIOT, Roozbeh GHAFFARI, YuHao LIU
  • Publication number: 20200395911
    Abstract: Aspects of this disclosure relate to a bulk acoustic wave device with a floating raised frame structure. The bulk acoustic wave device includes a first electrode, a second electrode, a piezoelectric layer positioned between the first electrode and the second electrode, and a floating raised frame structure positioned on a same side of the piezoelectric layer as the first electrode and spaced apart from the first electrode. The floating raised frame structure is at a floating potential. The bulk acoustic wave device can suppress a raised frame mode. Related methods, filters, multiplexers, radio frequency front ends, radio frequency modules, and wireless communication devices are disclosed.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Inventors: Jiansong Liu, Yuhao Liu, Kwang Jae Shin, Chun Sing Lam