Patents by Inventor Lei Miao

Lei Miao 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: 20220191635
    Abstract: A delay estimation method includes determining a cross-correlation coefficient of a multi-channel signal of a current frame, determining a delay track estimation value of the current frame based on buffered inter-channel time difference information of at least one past frame, determining an adaptive window function of the current frame, performing weighting on the cross-correlation coefficient based on the delay track estimation value of the current frame and the adaptive window function of the current frame, to obtain a weighted cross-correlation coefficient, and determining an inter-channel time difference of the current frame based on the weighted cross-correlation coefficient.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 16, 2022
    Inventors: Eyal Shlomot, Haiting Li, Lei Miao
  • Patent number: 11359073
    Abstract: Disclosed is a processing method of a self-reinforced starch-based multifunctional material, and belongs to the technical field of starch deep processing. The processing method takes bulk starch as a base material, including the following steps: firstly reacting starch nanoparticles with an organic acid anhydride reagent and adding a bacteriostatic agent to prepare composite nanoparticles, then mixing the composite nanoparticles with the bulk starch, an etherifying agent, a crosslinking agent, a plasticizer and the like, and finally preparing a starch-based multifunctional material by dry extrusion modification combined with a starch-based nanoparticle assembly and reinforcement technology. The method of the disclosure is simple and convenient in step, mild and controllable in reaction, and continuous and green in production.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: June 14, 2022
    Assignee: Jiangnan University
    Inventors: Ming Miao, Xue Jia, Osvaldo H. Campanella, Zhengyu Jin, Tao Zhang, Lei Ye
  • Publication number: 20220180485
    Abstract: An image processing method includes analyzing a first image including a face image in a plurality of directions, including recognizing photographing background information of the first image and brightness information and makeup information that are of a face, so that skin beautification processing can be purposefully performed on the face image comprehensively based on specific background information of the image, actual brightness distribution of the face, and actual makeup of the face.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Inventors: Yukuai Chen, Shuai Chen, Zhiping Jia, Lei Miao
  • Patent number: 11356030
    Abstract: A switching power supply circuit with synchronous rectification has an energy storage component, a SR switch coupled to a secondary side of the energy storage component, and a secondary control circuit. The secondary control circuit has a turning-ON control circuit for providing a turning-ON control signal based on a comparison of a drain to source sensing voltage of the SR switch and a turn ON threshold, a mode determination circuit for providing a mode signal to determine a turn ON delay based on a detection to a transient event or the drain to source sensing voltage ringing of the SR switch, and a gate driver circuit for driving the SR switch. When the turning-ON control signal is asserted, the gate driver circuit charges a gate voltage of the SR switch after the turn ON delay based on the mode signal, to turn ON the SR switch.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: June 7, 2022
    Assignee: Chengdu Monolithic Power Systems Co., Ltd.
    Inventors: Lei Miao, Siran Wang
  • Patent number: 11355131
    Abstract: An audio encoding and decoding method and a related apparatus are provided. The audio encoding method includes: determining a channel combination scheme for a current frame; when the channel combination scheme for the current frame is different from a channel combination scheme for a previous frame, performing segmented time-domain downmix processing on left and right channel signals in the current frame based on the channel combination scheme for the current frame and the channel combination scheme for the previous frame, to obtain a primary channel signal and a secondary channel signal in the current frame; and encoding the obtained primary channel signal and secondary channel signal in the current frame.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: June 7, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Bin Wang, Halting Li, Lei Miao
  • Publication number: 20220172730
    Abstract: An audio signal encoding method and device are provided. The method and device are used to encode an audio signal to obtain a bitstream representing the analog audio signal, in which a proper bit allocation for spectral coefficients can be performed.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zexin Liu, Bin Wang, Lei Miao
  • Publication number: 20220168439
    Abstract: The subject matter described herein is directed to methods of modifying the micro-environment of a target cell or The methods comprise systemically administering to a subject a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap in the target cell, wherein the trap is expressed in the target cell thereby modifying the micro-environment. Also described herein are methods of reducing metastasis of a cancer comprising, systemically administering to a subject suffering from the cancer, a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap, wherein the trap is delivered to and then expressed in tissue susceptible to metastasis, wherein metastasis of the cancer to the tissue is reduced. Compositions for carrying out the methods are also described.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 2, 2022
    Inventors: Leaf Huang, Tyler GOODWIN, Rihe LIU, Lei MIAO
  • Publication number: 20220139404
    Abstract: An audio encoding and decoding method and a related apparatus are provided. The audio encoding method may include: determining a coding mode of a current frame; when determining that the coding mode of the current frame is an anticorrelated signal coding mode, performing time-domain downmix processing on left and right channel signals in the current frame by using a time-domain downmix processing manner corresponding to the anticorrelated signal coding mode, to obtain a primary channel signal and a secondary channel signal, where the time-domain downmix processing manner corresponding to the anticorrelated signal coding mode is a time-domain downmix processing manner corresponding to an anticorrelated signal channel combination scheme, and the anticorrelated signal channel combination scheme is a channel combination scheme corresponding to a near out of phase signal; and encoding the obtained primary channel signal and secondary channel signal in the current frame.
    Type: Application
    Filed: June 23, 2021
    Publication date: May 5, 2022
    Inventors: Haiting LI, Bin WANG, Lei MIAO
  • Patent number: 11304019
    Abstract: A delay estimation method includes determining a cross-correlation coefficient of a multi-channel signal of a current frame, determining a delay track estimation value of the current frame based on buffered inter-channel time difference information of at least one past frame, determining an adaptive window function of the current frame, performing weighting on the cross-correlation coefficient based on the delay track estimation value of the current frame and the adaptive window function of the current frame, to obtain a weighted cross-correlation coefficient, and determining an inter-channel time difference of the current frame based on the weighted cross-correlation coefficient.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: April 12, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Eyal Shlomot, Halting Li, Lei Miao
  • Patent number: 11289102
    Abstract: Present disclosure provide an audio signal encoding method and communication terminal, which relate to the communications field. The method and communication terminal are used to obtain an analog audio signal and encoding the analog audio signal to obtain a bitstream representing the analog audio signal, in which a proper bit allocation for spectral coefficients can be performed.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: March 29, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zexin Liu, Bin Wang, Lei Miao
  • Publication number: 20220084531
    Abstract: A method for encoding an audio signal includes obtaining an ITD value of a current frame of an audio signal; obtaining a characteristic parameter of the current frame, wherein the characteristic parameter comprises at least one of a signal-to-noise ratio of the current frame or a peak feature of cross correlation coefficients of the current frame; determining, based on the characteristic parameter, whether to use the initial ITD value as the finalized ITD value of the current frame; and encoding the current frame based on the finalized ITD value of the current frame, wherein if the initial ITD value is determined as not used as the finalized ITD value of the current frame, the finalized ITD value of the current frame is the same as a finalized ITD value of a previous frame of the current frame.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 17, 2022
    Inventors: Haiting Li, Zexin Liu, Xingtao Zhang, Lei Miao
  • Publication number: 20220051680
    Abstract: A stereo signal processing method includes performing delay estimation on a stereo signal of a current frame to determine an inter-channel time difference of the current frame, identifying a sign of the inter-channel time difference of the current frame is different from a sign of an inter-channel time difference of a previous frame of the current frame, performing delay alignment processing on the first-channel signal of the current frame based on the inter-channel time difference of the current frame, and performing delay alignment processing on the second-channel signal of the current frame based on the inter-channel time difference of the previous frame.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 17, 2022
    Inventors: Eyal Shlomot, Haiting Li, Lei Miao
  • Publication number: 20220046376
    Abstract: A multi-channel signal encoding method includes determining a downmixed signal of a first channel signal and a second channel signal in a multi-channel signal, and reverberation gain parameters corresponding to different subbands of the first channel signal and the second channel signal, where the obtained reverberation gain parameters are belonging to at least two reverberation gain parameter groups. The method further includes selecting, from the at least two reverberation gain parameter groups, a target reverberation gain parameter group. The method further includes generating parameter indication information, where the parameter indication information indicates the target reverberation gain parameter group. The method further includes encoding reverberation gain parameters corresponding to the target reverberation gain parameter group, the parameter indication information, and the downmixed signal to obtain a bitstream.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 10, 2022
    Inventors: Zexin Liu, Lei Miao
  • Patent number: 11219694
    Abstract: The subject matter described herein is directed to methods of modifying the micro-environment of a target cell or The methods comprise systemically administering to a subject a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap in the target cell, wherein the trap is expressed in the target cell thereby modifiying the micro-environment. Also described herein are methods of reducing metastasis of a cancer comprising, systemically administering to a subject suffering from the cancer, a composition comprising a vector, wherein the vector comprises a construct for the expression of a trap, wherein the trap is delivered to and then expressed in tissue susceptible to metastasis, wherein metastasis of the cancer to the tissue is reduced. Compositions for carrying out the methods are also described.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: January 11, 2022
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Leaf Huang, Tyler Goodwin, Rihe Liu, Lei Miao
  • Patent number: 11217257
    Abstract: A method for encoding a multi-channel signal and an encoder, where the encoding method includes obtaining a multi-channel signal of a current frame, determining an initial inter-channel time difference (ITD) value of the current frame, controlling, based on characteristic information of the multi-channel signal, a quantity of target frames that are allowed to appear continuously, where the characteristic information includes at least one of a signal-to-noise ratio of the multi-channel signal or a peak feature of cross correlation coefficients of the multi-channel signal, and an ITD value of a previous frame of the target frame is reused as an ITD value of the target frame, determining an ITD value of the current frame based on the initial ITD value and the quantity of target frames allowed to appear continuously, and encoding the multi-channel signal based on the ITD value of the current frame.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 4, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haiting Li, Zexin Liu, Xingtao Zhang, Lei Miao
  • Publication number: 20210390968
    Abstract: A method comprises determining a first modification weight according to linear spectral frequency (LSF) differences of the current frame and LSF differences of a previous frame of the current frame when a signal characteristic of the current frame meets a preset modification condition, modifying the linear predictive parameter of the current frame according to the determined first modification weight, and coding the current frame according to the modified linear predictive parameter.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 16, 2021
    Inventors: Zexin Liu, Bin Wang, Lei Miao
  • Patent number: 11200907
    Abstract: A stereo signal processing method and apparatus, where the method includes performing delay estimation on a stereo signal of a current frame to determine an inter-channel time difference of the current frame, identifying a sign of the inter-channel time difference of the current frame is different from a sign of an inter-channel time difference of a previous frame of the current frame, performing delay alignment processing on the first-channel signal of the current frame based on the inter-channel time difference of the current frame, and performing delay alignment processing on the second-channel signal of the current frame based on the inter-channel time difference of the previous frame.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: December 14, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Eyal Shlomot, Haiting Li, Lei Miao
  • Publication number: 20210383815
    Abstract: A multi-channel signal encoding method includes obtaining a multi-channel signal of a current frame; determining an initial multi-channel parameter of the current frame; determining a difference parameter based on the initial multi-channel parameter of the current frame and multi-channel parameters of previous K frames of the current frame, where the difference parameter represents a difference between the initial multi-channel parameter of the current frame and the multi-channel parameters of the previous K frames, and K is an integer greater than or equal to one; determining a multi-channel parameter of the current frame based on the difference parameter and a characteristic parameter of the current frame; and encoding the multi-channel signal based on the multi-channel parameter of the current frame.
    Type: Application
    Filed: August 20, 2021
    Publication date: December 9, 2021
    Inventors: Zexin Liu, Xingtao Zhang, Haiting Li, Lei Miao
  • Publication number: 20210375292
    Abstract: A non-transitory computer-readable medium is provided. The non-transitory computer-readable medium having computer instructions stored therein, which when executed by one or more processors, cause the one or more processors to perform operations. The operations comprise: determining a channel combination scheme for a current frame, where the determined channel combination scheme for the current frame is one of a plurality of channel combination schemes; and determining a coding mode of the current frame based on a channel combination scheme for a previous frame and the channel combination scheme for the current frame, where the coding mode of the current frame is one of a plurality of coding modes.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 2, 2021
    Inventors: Bin WANG, Haiting LI, Lei MIAO
  • Patent number: 11178505
    Abstract: A multi-channel signal decoding method includes obtaining a downmixed signal of a first channel signal and a second channel signal in a multi-channel signal, obtaining parameter indication information, obtaining a reverberation gain parameter corresponding to each of the part of subbands according to the parameter indication information; and obtaining a reconstructed first channel signal and a reconstructed second channel signal according to the downmixed signal and the reverberation gain parameter.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: November 16, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zexin Liu, Lei Miao