Patents by Inventor Li Lu

Li Lu 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: 20230075891
    Abstract: A speech synthesis method includes: converting a text input sequence into a text feature representation sequence; inputting the text feature representation sequence into an encoder including N encoding layers; the N encoding layers including an encoding layer Ei and an encoding layer Ei+1; the encoding layer Ei+1 including a first multi-head self-attention network; acquiring a first attention matrix and a historical text encoded sequence outputted by the encoding layer Ei, and generating a second attention matrix of the encoding layer Ei+1 according to residual connection between the first attention matrix and the first multi-head self-attention network and the historical text encoded sequence; and generating a target text encoded sequence of the encoding layer Ei+1 according to the second attention matrix and the historical text encoded sequence, and generating synthesized speech data matched with the text input sequence based on the target text encoded sequence.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 9, 2023
    Inventors: Yibin ZHENG, Xinhui LI, Li LU
  • Publication number: 20230035504
    Abstract: Embodiments of this application provide an audio processing method and apparatus, a vocoder, an electronic device, and a computer-readable storage medium. The audio processing method includes performing speech feature conversion on a text to obtain at least one acoustic feature frame; extracting a conditional feature corresponding to each acoustic feature frame from each acoustic feature frame of the at least one acoustic feature frame by a frame rate network; performing frequency division and time-domain down-sampling on the current frame of each acoustic feature frame to obtain n subframes corresponding to the current frame; synchronously predicting sample values corresponding to the current m adjacent sampling points on the n subframes to obtain m×n sub-prediction values; obtaining an audio prediction signal corresponding to the current frame; and performing audio synthesis on the audio prediction signal corresponding to each acoustic feature frame to obtain a target audio corresponding to the text.
    Type: Application
    Filed: October 13, 2022
    Publication date: February 2, 2023
    Inventors: Shilun LIN, Xinhui LI, Li LU
  • Publication number: 20230026156
    Abstract: Systems for protein quantitation using a Fabry-Perot interferometer. In one arrangement, a quantitation device includes an infrared source, a sample holder, and a Fabry-Perot interferometer positioned to receive infrared radiation from the source passing through a sample on the sample holder. A band pass optical filter sets the working range of the interferometer, and radiation exiting the interferometer falls on a detector that produces a signal indicating the intensity of the received radiation. A controller causes the interferometer to be tuned to a number of different resonance wavelengths and receives the intensity signals, for determination of an absorbance spectrum.
    Type: Application
    Filed: July 29, 2022
    Publication date: January 26, 2023
    Inventors: Evan THRUSH, Steven SWIHART, William STRONG, Trey MARLOWE, Li LU
  • Publication number: 20230019004
    Abstract: A lateral double-diffused metal oxide semiconductor field effect transistor (LDMOS), including: a trench gate including a lower part inside a trench and an upper part outside the trench, a length of the lower part in a width direction of a conducting channel being less than that of the upper part, and the lower part extending into a body region and having a depth less than that of the body region; an insulation structure arranged between a drain region and the trench gate and extending downwards into a drift region, a depth of the insulation structure being less than that of the drift region.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 19, 2023
    Inventors: Jiaxing WEI, Qichao WANG, Kui XIAO, Dejin WANG, Li LU, Ling YANG, Ran YE, Siyang LIU, Weifeng SUN, Longxing SHI
  • Patent number: 11553116
    Abstract: An electronic component assembly having thermal pads with thermal vias coupling an image sensor and a camera board fab is provided for heat dissipation. The electronic component assembly can include: a circuit board having at least one thermal pad disposed on a top surface of the circuit board; and an image sensor disposed on the top surface of the circuit board, having at least one conductive pad disposed at at least one corner of the image sensor. The at least one thermal pad is coupled to the at least one conductive pad of the image sensor and the at least one thermal pad is formed with a plurality of first thermal vias penetrating the thermal pad and the circuit board for transfer of heat of the image sensor.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: January 10, 2023
    Assignee: BIO-RAD LABORATORIES, INC.
    Inventors: Stephen Swihart, Li Lu, Wade Jameson, Evan Thrush, Michael Griffin, Evelio Perez
  • Patent number: 11546004
    Abstract: Aspects of the disclosure relate to an apparatus for wireless communication. The apparatus may include a set of power detectors configured to generate a set of analog signals related to a set of output signal power levels of a set of transmit chains of a transmitter, respectively; an analog summer; a set of switching devices configured to send a selected one or more of the set of analog signals to the analog summer, and substantially isolated unselected one or more of the set of power detectors from the analog summer, wherein the analog summer is configured to generate a cumulative analog signal based on a sum of the selected one or more of the set of analog signals; an analog-to-digital converter (ADC) configured to generate a digital signal based on the cumulative analog signal; and a controller configured to control the set of switching devices.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: January 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Meysam Azin, Li Lu, Anees Habib, Chinmaya Mishra, Damin Cao, Arul Balasubramaniyan, David Ta-hsiang Lin, Shuang Zhu, Dinesh Jagannath Alladi
  • Patent number: 11494888
    Abstract: Provided is an oil leakage detection apparatus by which oil leakage detection is performed even for colorless oil with high detection accuracy and without complicating the apparatus. The oil leakage detection apparatus of the invention includes a distance measurement unit configured to measure a distance to the oil-input machine, an ultraviolet light source configured to irradiate the oil-input machine with ultraviolet light, a color imaging unit configured to capture an image of the oil-input machine irradiated with ultraviolet light, an image processing unit configured to diagnose oil leakage of the oil-input machine based on the distance measured by the distance measurement unit and the captured image of the color imaging unit, and a display unit configured to display a processed image processed by the image processing unit.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: November 8, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Li Lu, Akira Nishimizu, Toshiaki Rokunohe, Akira Yamagishi
  • Patent number: 11490238
    Abstract: A method for joining a Zigbee device to a Zigbee network, includes starting a Zigbee protocol stack and a Bluetooth protocol stack on the Zigbee device, sending out Zigbee requests to seek for Zigbee networks, sending out Bluetooth beacon messages containing a Zigbee install code, wherein the Zigbee requests and the Bluetooth beacon messages are sent out in a time division multiplex manner.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: November 1, 2022
    Assignee: LEDVANCE GMBH
    Inventors: Huajin Huang, Wang Jiang, Wuqiang Liao, Li Lu
  • Publication number: 20220311460
    Abstract: Aspects of the disclosure relate to an apparatus for wireless communication. The apparatus may include a set of power detectors configured to generate a set of analog signals related to a set of output signal power levels of a set of transmit chains of a transmitter, respectively; an analog summer; a set of switching devices configured to send a selected one or more of the set of analog signals to the analog summer, and substantially isolated unselected one or more of the set of power detectors from the analog summer, wherein the analog summer is configured to generate a cumulative analog signal based on a sum of the selected one or more of the set of analog signals; an analog-to-digital converter (ADC) configured to generate a digital signal based on the cumulative analog signal; and a controller configured to control the set of switching devices.
    Type: Application
    Filed: March 24, 2021
    Publication date: September 29, 2022
    Inventors: Meysam AZIN, Li LU, Anees HABIB, Chinmaya MISHRA, Damin CAO, Arul BALASUBRAMANIYAN, David Ta-hsiang LIN, Shuang ZHU, Dinesh Jagannath ALLADI
  • Patent number: 11450312
    Abstract: A speech recognition method includes: obtaining speech information; and determining beginning and ending positions of a candidate speech segment in the speech information by using a weighted finite state transducer (WFST) network. The candidate speech segment is identified as corresponding to a preset keyword. The method also includes clipping the candidate speech segment from the speech information according to the beginning and ending positions of the candidate speech segment; detecting whether the candidate speech segment includes a preset keyword by using a machine learning model; and determining, upon determining that the candidate speech segment comprises the preset keyword, that the speech information comprises the preset keyword.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: September 20, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Shilun Lin, Xilin Zhang, Wenhua Ma, Bo Liu, Xinhui Li, Li Lu, Xiucai Jiang
  • Patent number: 11435285
    Abstract: Systems for protein quantitation using a Fabry-Perot interferometer. In one arrangement, a quantitation device includes an infrared source, a sample holder, and a Fabry-Perot interferometer positioned to receive infrared radiation from the source passing through a sample on the sample holder. A band pass optical filter sets the working range of the interferometer, and radiation exiting the interferometer falls on a detector that produces a signal indicating the intensity of the received radiation. A controller causes the interferometer to be tuned to a number of different resonance wavelengths and receives the intensity signals, for determination of an absorbance spectrum.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: September 6, 2022
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Evan Thrush, Steven Swihart, William Strong, Trey Marlowe, Li Lu
  • Publication number: 20220259664
    Abstract: Disclosed are the method, kit, system and use for screening or detecting or assisting in the diagnosis of bladder cancer, which are able to simultaneously detect FGFR3, TERT, PLEKHS1 point mutations and OTX1, NID2 and NRN1 methylation levels, thereby realizing the combined detection of gene point mutation and methylation, reducing the demand for samples, experimental operation steps and detection cycle, and improving the specificity and sensitivity of detection.
    Type: Application
    Filed: March 11, 2020
    Publication date: August 18, 2022
    Inventors: Li LU, GENMING XU, QIAN ZHAO
  • Patent number: 11282635
    Abstract: An object of the present invention is to provide a stationary induction electric apparatus that can improve insulating performance with a few additional structures. In the stationary induction electric apparatus comprising: an iron core 1; a low-voltage coil conductor 400 wound on the iron core; an insulator 3 enclosing the low-voltage coil conductor; and a high-voltage coil conductor 2 which is wound on the insulator and to which a voltage is applied from the outside, a first shield conductor 5 wound adjacent to the inner peripheral surface of the insulator, a second shield conductor 4 wound adjacent to the outer peripheral surface of the insulator, one end of the first shield conductor, and one end of the second shield conductor are electrically connected to any region of the high-voltage coil conductor.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 22, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Ichimura, Daigo Komesu, Shinji Fujita, Hiroshi Morita, Li Lu
  • Publication number: 20220069115
    Abstract: A heterojunction semiconductor device with a low on-resistance includes a metal drain electrode, a substrate, and a buffer layer. A current blocking layer arranged in the buffer layer, a gate structure is arranged on the buffer layer, and the gate structure comprises a metal gate electrode, GaN pillars and AlGaN layers, wherein a metal source electrode is arranged above the metal gate electrode; and the current blocking layer comprises multiple levels of current blocking layers, the centers of symmetry of the layers are collinear, and annular inner openings of the current blocking layers at all levels gradually become smaller from top to bottom. The AlGaN layers and the GaN pillars are distributed in a honeycomb above the buffer layer.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 3, 2022
    Inventors: Siyang LIU, Chi ZHANG, Kui XIAO, Guipeng SUN, Dejin WANG, Jiaxing WEI, Li LU, Weifeng SUN, Shengli LU
  • Publication number: 20220057291
    Abstract: The present invention is directed to a leakage oil detection device for detecting leakage oil in an oil filled apparatus including: a light source configured to irradiate the apparatus; an imaging device configured to capture an image of the apparatus; a control device configured to control operations of the light source and the imaging device; a storage device configured to store a captured image; an image processing device configured to process the stored image; and a display device configured to display a processing result. The light source and the imaging device are arranged to capture specular reflection light from a surface of the apparatus as a target object. The image processing device recognizes a brightest portion and an adjacent dark portion on the image as leakage oil adhesion portions when a three-layer structure of luminance having bright portions having different luminances and a dark portion is observed in the image.
    Type: Application
    Filed: November 7, 2019
    Publication date: February 24, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Li Lu, Satoshi Ichimura, Akira Nishimizu, Akira Yamagishi
  • Patent number: 11167716
    Abstract: An instrument panel for a passenger compartment of an automotive vehicle comprises a molded plastic substrate and a skin covering the substrate. The substrate has inner and outer surfaces, and is adapted to be mounted in the passenger compartment adjacent a windshield. The inner surface is adapted to receive an air bag chute assembly for deploying an air bag. The inner surface is inscribed by a door groove defining a deployment door at least partially tearing open to expel the air bag. The outer surface is inscribed by a hinge groove following a chord path bisecting the outer surface of the deployment door and configured to bend in response to an edge of the deployment door impacting the windshield. The impact force against the windshield is reduced while stiffness of the door against the air bag remains high to facilitate tearing open of the door by the air bag.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: November 9, 2021
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Yi Yang Tay, Li Lu, Kenneth J. Kwasnik, Lisandro Trevino
  • Patent number: 11164568
    Abstract: A speech recognition method is provided. The method includes: obtaining a voice signal; processing the voice signal according to a speech recognition algorithm to obtain n candidate recognition results, the candidate recognition results including text information corresponding to the voice signal; identifying a target result from among the n candidate recognition results according to a selection rule selected from among m selection rules, the selection rule having an execution sequence of j, the target result being a candidate recognition result that has a highest matching degree with the voice signal in the n candidate recognition results, an initial value of j being 1; and identifying the target result from among the n candidate recognition results according to a selection rule having an execution sequence of j+1 based on the target result not being identified according to the selection rule having the execution sequence of j.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: November 2, 2021
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LTD
    Inventors: Ping Zheng, Feng Rao, Li Lu, Tao Li
  • Publication number: 20210270244
    Abstract: The invention provides to a method and a system for fault diagnosis of a gearbox of a wind turbine generator based on stacked denoising autoencoders and relates to fault diagnosis. Signals obtained by pre-processing original vibration signals collected when the gearbox of the wind turbine generator is in different working states are used as training data. The training data are input into stacked denoising autoencoders. Meanwhile, a quantum-behaved particle swarm optimization algorithm is introduced to optimize the structure and parameters. Then, pre-processed test signals are input into the stacked denoising autoencoders that are trained to extract high-dimensionality fault features contained in the original vibration signals. Then, the extracted fault features are input into a least squares support vector machine to complete the fault diagnosis of the gearbox.
    Type: Application
    Filed: December 15, 2020
    Publication date: September 2, 2021
    Applicant: WUHAN UNIVERSITY
    Inventors: Yigang HE, Li LU, Liulu HE, Guolong SHI, Chaolong ZHANG
  • Publication number: 20210199568
    Abstract: Systems for protein quantitation using a Fabry-Perot interferometer. In one arrangement, a quantitation device includes an infrared source, a sample holder, and a Fabry-Perot interferometer positioned to receive infrared radiation from the source passing through a sample on the sample holder. A band pass optical filter sets the working range of the interferometer, and radiation exiting the interferometer falls on a detector that produces a signal indicating the intensity of the received radiation. A controller causes the interferometer to be tuned to a number of different resonance wavelengths and receives the intensity signals, for determination of an absorbance spectrum.
    Type: Application
    Filed: March 11, 2021
    Publication date: July 1, 2021
    Inventors: Evan THRUSH, Steven SWIHART, William STRONG, Trey MARLOWE, Li LU
  • Publication number: 20210192710
    Abstract: Provided is an oil leakage detection apparatus by which oil leakage detection is performed even for colorless oil with high detection accuracy and without complicating the apparatus. The oil leakage detection apparatus of the invention includes a distance measurement unit configured to measure a distance to the oil-input machine, an ultraviolet light source configured to irradiate the oil-input machine with ultraviolet light, a color imaging unit configured to capture an image of the oil-input machine irradiated with ultraviolet light, an image processing unit configured to diagnose oil leakage of the oil-input machine based on the distance measured by the distance measurement unit and the captured image of the color imaging unit, and a display unit configured to display a processed image processed by the image processing unit.
    Type: Application
    Filed: November 5, 2018
    Publication date: June 24, 2021
    Inventors: Li LU, Akira NISHIMIZU, Toshiaki ROKUNOHE, Akira YAMAGISHI