Patents by Inventor Dayong Zhou

Dayong Zhou 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).

  • Patent number: 11522110
    Abstract: This disclosure discloses a light-emitting diode chip, a method for fabricating the same, a backlight module, and a display device. The light-emitting diode chip includes: a transparent base substrate; at least one light-emitting diode located on one side of the base substrate; and a dimming structure located on a side of the base substrate away from the light-emitting diode, wherein the light-emitting diode is configured to emit light from double sides thereof; and the dimming structure is configured to adjust the intensity of light emitted from the side of the base substrate away from the light-emitting diode.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 6, 2022
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Ting Tian, Yawen Zhang, Ming Zhai, Dayong Zhou, Jinge Zhao, Pan Guo, Shuqian Dou, Xiaoliang Fu, Zhiqiang Fan, Meijuan An, Liguang Deng, Yongjie Han
  • Patent number: 11477569
    Abstract: A method of obtaining a directional microphone signal, the method comprising: receiving first and second microphone signals from first and second microphones separated by a distance; obtaining a combined microphone signal based on one or more of the first and second microphone signals; obtaining a difference microphone signal by subtracting the second microphone signal from the first microphone signal; obtaining a transformed combined microphone signal by applying a Hilbert transform to the combined microphone signal; combining the transformed combined microphone signal with the difference microphone signal to obtain the directional microphone signal.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: October 18, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Dayong Zhou, Brad Zwernemann
  • Patent number: 11468873
    Abstract: An integrated circuit for implementing at least a portion of a personal audio device may include a processing circuit to implement an adaptive filter having a response that generates an anti-noise signal to reduce the presence of the ambient audio sounds at an error microphone, implement a coefficient control block that shapes the response of the adaptive filter in conformity with the error microphone signal by computing coefficients that determine the response of the adaptive filter to minimize the ambient audio sounds at the error microphone, and responsive to detecting a condition that triggers a reset of the adaptive filter, increment the coefficients in a plurality of steps from initial values of the coefficients at a time of triggering the reset to final values of the coefficients at a conclusion of the reset.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: October 11, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Sang-Ik Cho, Dayong Zhou
  • Publication number: 20220303673
    Abstract: A method of obtaining a directional microphone signal, the method comprising: receiving first and second microphone signals from first and second microphones separated by a distance; obtaining a combined microphone signal based on one or more of the first and second microphone signals; obtaining a difference microphone signal by subtracting the second microphone signal from the first microphone signal; obtaining a transformed combined microphone signal by applying a Hilbert transform to the combined microphone signal; combining the transformed combined microphone signal with the difference microphone signal to obtain the directional microphone signal.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 22, 2022
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Dayong ZHOU, Brad ZWERNEMANN
  • Patent number: 11333622
    Abstract: A method for determining a direct current impedance of a transducer may include receiving an input signal indicative of an electrical power consumed by the transducer and calculating, by a thermal model of the transducer, the direct current impedance based on the electrical power.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: May 17, 2022
    Assignee: Cirrus Logic, Inc.
    Inventors: Emmanuel Marchais, Carl Lennart Ståhl, Eric Lindemann, Jason W. Lawrence, Dayong Zhou
  • Publication number: 20220125827
    Abstract: The disclosure provides application of sulfated polysaccharides in resisting novel coronavirus, belonging to the technical field of biomedicine. It is confirmed in the disclosure that by binding to an S protein on the surface of the SARS-CoV-2 virus, the sea cucumber polysaccharides, fucoidans or carrageenans can prevent cell membranes of body cells from adsorbing and internalizing the SARS-CoV-2 virus, thereby preventing the SARS-CoV-2 virus from infecting the body cells, which indicates that the sea cucumber polysaccharides, fucoidans or carrageenans have the effect of prevention and treatment of pneumonia caused by the novel coronavirus. These polysaccharides can be used to prepare protective articles having functions of prevention and treatment of novel coronavirus infection, for example: inhalations, hand lotions, oral liquids and respirators.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 28, 2022
    Inventors: Beiwei ZHU, Shuang SONG, Xiuping DONG, Chengrong WEN, Chunqing AI, Dayong ZHOU, Hang QI, Libo QI, Dongmei LI, Jingfeng YANG
  • Patent number: 11217222
    Abstract: An adaptive filter converts time domain samples of an input signal into frequency domain signals, dynamically adjusts a stability conditional number based on the frequency domain signals, and uses the dynamically adjusted stability conditional number to control step size normalization during adaptation of frequency domain coefficients of the adaptive filter. The stability control number may be global to a range of frequency bins based on a peak magnitude of the input signal and/or may be frequency bin-specific stability control numbers based on corresponding frequency bin-specific error signal magnitudes. The adaptive filter also dynamically adjusts a noise floor based on the frequency domain input signals and refrains from updating frequency domain coefficients when a magnitude of the frequency domain input signal associated with a frequency bin is greater than the dynamically adjusted noise floor.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: January 4, 2022
    Assignee: Cirrus Logic, Inc.
    Inventor: Dayong Zhou
  • Patent number: 11112423
    Abstract: The disclosure discloses an acceleration sensor, where the acceleration sensor comprises: a housing, and a mass block in the housing and connected with the housing via at least two hanging beams, where an auxiliary buffer component is further provided between the mass block and a bottom surface of the housing, and an elastic coefficient of the auxiliary buffer component decreases as force applied thereon increases.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: September 7, 2021
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yongjie Han, Shuqian Dou, Xiaoliang Fu, Ting Tian, Dayong Zhou, Zhiqiang Fan, Yawen Zhang, Youcai Yang, Dong Zhang, Zhongjun Wang, Yu Liu
  • Patent number: 10984778
    Abstract: An adaptive filter includes a frequency domain adaptation block that analyzes a statistic of coefficient movement in the frequency domain. The adaption block adjusts, in the frequency domain, a parameter (step size or leakage factor) that affects speed of convergence of the adaptive filter based on the analyzed statistic of filter coefficient movement. The filter includes an associated coefficient, statistic of coefficient movement, and parameter for each frequency bin. The coefficients may be complex numbers, and separate real and imaginary statistics and parameters are maintained. The statistic may be direction counts of the filter coefficient movement. The step size may be adjusted to a predetermined minimum value when the current direction of movement of the filter coefficient is different than the predominant direction and otherwise the step size is adjusted approximately proportionally to an amount of predominance by a value based on a direction count of the filter coefficient movement.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 20, 2021
    Assignee: Cirrus Logic, Inc.
    Inventors: Dayong Zhou, Chin Huang Yong
  • Patent number: 10964855
    Abstract: A method for manufacturing a micro light-emitting diode array substrate is disclosed. The method includes: providing a drive substrate comprising a plurality of sub-pixel regions, the plurality of sub-pixel regions being configured for bearing micro light-emitting diodes of different colors, and epitaxial layers of the micro light-emitting diodes of different colors having different thicknesses; providing a base substrate, forming a plurality of micro light-emitting diodes on the base substrate, and transferring micro light-emitting diodes of same color on the base substrate as a whole onto the drive substrate; repeating the transferring process in a sequence that the thicknesses of the epitaxial layers of the micro light-emitting diodes gradually increase, until each sub-pixel region in pixel units is provided with one of the micro light-emitting diodes having same color as the each sub-pixel region.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 30, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ting Tian, Shuqian Dou, Xiaoliang Fu, Liguang Deng, Dayong Zhou, Zhiqiang Fan, Yongjie Han, Yawen Zhang, Zhongjun Wang, Dong Zhang, Yu Liu, Zheran Li, Hyungkyu Kim
  • Patent number: 10936844
    Abstract: The present application provides a fingerprint sensor. The fingerprint sensor includes an array of a plurality of optical fibers. Each of the plurality of optical fibers has a first end and second end opposite to the first end. Each of the plurality of optical fibers is configured to allow an incident light to enter into the second end and an exit light to exit from the second end. Each of the plurality of optical fibers includes a fiber core; a fiber Bragg grating in the fiber core; and a reflective film on the first end.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: March 2, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Yu Liu, Liguang Deng, Ming Zhai, Xiaoliang Fu, Shuqian Dou, Yawen Zhang, Ting Tian, Zhiqiang Fan, Dayong Zhou, Dong Zhang, Youcai Yang, Yongjie Han
  • Publication number: 20210020157
    Abstract: An adaptive filter includes a frequency domain adaptation block that analyzes a statistic of coefficient movement in the frequency domain. The adaption block adjusts, in the frequency domain, a parameter (step size or leakage factor) that affects speed of convergence of the adaptive filter based on the analyzed statistic of filter coefficient movement. The filter includes an associated coefficient, statistic of coefficient movement, and parameter for each frequency bin. The coefficients may be complex numbers, and separate real and imaginary statistics and parameters are maintained. The statistic may be direction counts of the filter coefficient movement. The step size may be adjusted to a predetermined minimum value when the current direction of movement of the filter coefficient is different than the predominant direction and otherwise the step size is adjusted approximately proportionally to an amount of predominance by a value based on a direction count of the filter coefficient movement.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 21, 2021
    Inventors: Dayong Zhou, Chin Huang Yong
  • Publication number: 20210020158
    Abstract: An adaptive filter converts time domain samples of an input signal into frequency domain signals, dynamically adjusts a stability conditional number based on the frequency domain signals, and uses the dynamically adjusted stability conditional number to control step size normalization during adaptation of frequency domain coefficients of the adaptive filter. The stability control number may be global to a range of frequency bins based on a peak magnitude of the input signal and/or may be frequency bin-specific stability control numbers based on corresponding frequency bin-specific error signal magnitudes. The adaptive filter also dynamically adjusts a noise floor based on the frequency domain input signals and refrains from updating frequency domain coefficients when a magnitude of the frequency domain input signal associated with a frequency bin is greater than the dynamically adjusted noise floor.
    Type: Application
    Filed: July 19, 2019
    Publication date: January 21, 2021
    Inventor: Dayong Zhou
  • Publication number: 20200396524
    Abstract: A modular node for an optical communication network includes one or more transceiver modules of a plurality of transceiver modules, and a node core including a plurality of electrical connectors to electrically join up to the plurality of transceiver modules to the node core. At least some of the transceiver modules has an optical transceiver configured to emit optical beams carrying data and without artificial confinement, and detect optical beams emitted and without artificial confinement. The up to the plurality of transceiver modules electrically joined to the node core are spatially separated to provide configurable coverage for optical communication based on their number and placement. And the node core further includes switching circuitry configured to connect the one or more transceiver modules to implement a redistribution point or a communication endpoint in the optical communication network.
    Type: Application
    Filed: June 13, 2019
    Publication date: December 17, 2020
    Inventors: Michael W. Adams, William J. Brown, Dayong Zhou, Hannah Clark
  • Publication number: 20200348249
    Abstract: A method for determining a direct current impedance of a transducer may include receiving an input signal indicative of an electrical power consumed by the transducer and calculating, by a thermal model of the transducer, the direct current impedance based on the electrical power.
    Type: Application
    Filed: April 7, 2020
    Publication date: November 5, 2020
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Emmanuel MARCHAIS, Carl Lennart STÅHL, Eric LINDEMANN, Jason W. LAWRENCE, Dayong ZHOU
  • Publication number: 20200327295
    Abstract: The present application provides a fingerprint sensor. The fingerprint sensor includes an array of a plurality of optical fibers. Each of the plurality of optical fibers has a first end and second end opposite to the first end. Each of the plurality of optical fibers is configured to allow an incident light to enter into the second end and an exit light to exit from the second end. Each of the plurality of optical fibers includes a fiber core; a fiber Bragg grating in the fiber core; and a reflective film on the first end.
    Type: Application
    Filed: July 16, 2018
    Publication date: October 15, 2020
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Yu LIU, Liguang DENG, Ming ZHAI, Xiaoliang FU, Shuqian DOU, Yawen ZHANG, Ting TIAN, Zhiqiang FAN, Dayong ZHOU, Dong ZHANG, Youcai YANG, Yongjie HAN
  • Publication number: 20200313046
    Abstract: A method for manufacturing a micro light-emitting diode array substrate is disclosed. The method includes: providing a drive substrate comprising a plurality of sub-pixel regions, the plurality of sub-pixel regions being configured for bearing micro light-emitting diodes of different colors, and epitaxial layers of the micro light-emitting diodes of different colors having different thicknesses; providing a base substrate, forming a plurality of micro light-emitting diodes on the base substrate, and transferring micro light-emitting diodes of same color on the base substrate as a whole onto the drive substrate; repeating the transferring process in a sequence that the thicknesses of the epitaxial layers of the micro light-emitting diodes gradually increase, until each sub-pixel region in pixel units is provided with one of the micro light-emitting diodes having same color as the each sub-pixel region.
    Type: Application
    Filed: August 28, 2019
    Publication date: October 1, 2020
    Inventors: Ting TIAN, Shuqian DOU, Xiaoliang FU, Liguang DENG, Dayong ZHOU, Zhiqiang FAN, Yongjie HAN, Yawen ZHANG, Zhongjun WANG, Dong ZHANG, Yu LIU, Zheran LI, Hyungkyu KIM
  • Patent number: 10789933
    Abstract: An adaptive filter calculates frequency domain coefficients and in the frequency domain dynamically adjusts a leakage/step size parameter that controls adaptation of the adaptive filter based on the calculated frequency domain coefficients (e.g., based on a peak magnitude of the coefficients among frequency bins or on the magnitude of the coefficient of the corresponding frequency bin). The adaptive filter calculates the coefficients based on frequency domain input and error signals, dynamically adjusts a frequency domain coefficient magnitude limit parameter based on the calculated frequency domain coefficients (e.g., approximately proportionally to a peak magnitude of the coefficients among frequency bins) and uses the dynamically adjusted frequency domain coefficient magnitude limit parameter to limit a magnitude of the calculated frequency domain coefficients. The limit may be engaged above a frequency bin based on the peak magnitude frequency bin. An ANC system may employ the filter.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: September 29, 2020
    Assignee: Cirrus Logic, Inc.
    Inventors: Ning Li, Dayong Zhou
  • Patent number: 10789446
    Abstract: A device for fingerprint recognition, a manufacturing method therefor, and an electronic apparatus are provided. The method includes: forming fingerprint recognition units in multiple independent preset regions of a substrate, where the fingerprint recognition units each include a fingerprint recognition component and a light emitting component; partitioning the substrate along boundaries of the preset regions to separate the fingerprint recognition units from each other; and coupling the fingerprint recognition units after partition with corresponding control circuits, to make the fingerprint recognition component and the light emitting component of each fingerprint recognition unit be electrically connected to a corresponding control circuit coupled with the each fingerprint recognition unit. The fingerprint recognition unit and the control circuit coupled with each other serve together as the device for fingerprint recognition. The method is for manufacturing the device for fingerprint recognition.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: September 29, 2020
    Assignees: BEIJING BOE TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ting Tian, Ming Zhai, Shuqian Dou, Xiaoliang Fu, Dayong Zhou, Zhiqiang Fan, Liguang Deng, Youcai Yang, Zhongjun Wang, Dong Zhang, Yongjie Han, Jinge Zhao, Jia Meng, Yanjun Liu, Yu Liu
  • Patent number: 10763300
    Abstract: A light emitting diode device, an array substrate and a display device. The light emitting diode device includes a substrate, a first sub-light emitting unit disposed on the substrate, and a second sub-light emitting unit disposed on a side of the first sub-light emitting unit away from the substrate. The first sub-light emitting unit includes a first semiconductor layer of a first conductivity type, a first light emitting layer, and a second semiconductor layer of a second conductivity type which are each disposed successively in a direction away from the substrate. The second sub-light emitting unit includes the second semiconductor layer, a second light emitting layer, and a third semiconductor layer of the first conductivity type. Each layer is disposed successively in the direction away from the substrate. The first conductivity type is different from the second conductivity type.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: September 1, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ting Tian, Ming Zhai, Dayong Zhou, Zhiqiang Fan, Shuqian Dou, Taesung Kang