Patents by Inventor Shunzhan Li

Shunzhan 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).

  • Patent number: 11194986
    Abstract: A fingerprint detection apparatus and a terminal device having a fingerprint identification function are disclosed. The terminal device includes: a glass cover, configured to provide a touch interface; a liquid crystal panel, located below the glass cover; a backlight module, located below the liquid crystal panel; and a light-emitting component, located below the glass cover, wherein the light-emitting component and the liquid crystal panel are staggered from each other, and the light-emitting component is configured to emit a light to illuminate the finger to generate a returned light, wherein the returned light is used for the terminal device to perform the fingerprint identification on the finger.
    Type: Grant
    Filed: December 14, 2019
    Date of Patent: December 7, 2021
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Shunzhan Li, Wei Zhang, Xiaogang Qing
  • Publication number: 20210326573
    Abstract: Provided are a fingerprint identification device, a fingerprint identification method and an electronic device, which could improve security of fingerprint identification. The fingerprint identification device includes an optical fingerprint sensor including a plurality of pixel units; at least two filter units disposed above at least two of the plurality of pixel units, where each filter unit corresponds to one pixel unit, and the at least two filter units comprise filter units in at least two colors.
    Type: Application
    Filed: May 21, 2021
    Publication date: October 21, 2021
    Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Shunzhan LI, Xiang CHENG, Qin GU, Yonghui WU
  • Patent number: 11048910
    Abstract: Provided are a fingerprint identification device, a fingerprint identification method and an electronic device, which could improve security of fingerprint identification. The fingerprint identification device includes an optical fingerprint sensor including a plurality of pixel units; at least two filter units disposed above at least two pixel units of the plurality of pixel units, where each filter unit corresponds to one pixel unit, and the at least two filter units comprise filter units in at least two colors.
    Type: Grant
    Filed: May 18, 2019
    Date of Patent: June 29, 2021
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Shunzhan Li, Xiang Cheng, Qin Gu, Yonghui Wu
  • Publication number: 20210150178
    Abstract: A method for biometric identification includes: acquiring a first fingerprint image by using a first image capturing mode, where the first fingerprint image is used for first biometric identification, and the first biometric identification includes fingerprint identification; and acquiring a plurality of frames of second fingerprint images by using a second image capturing mode, where the plurality of frames of second fingerprint images are used for second biometric identification, and the second biometric identification includes at least one of heart rate detection, blood oxygen detection or living body detection, and the first image capturing mode is different from the second image capturing mode. The method for biometric identification is beneficial to improve detection performance.
    Type: Application
    Filed: December 24, 2020
    Publication date: May 20, 2021
    Inventors: Bingwen WANG, Shunzhan LI
  • Publication number: 20210124199
    Abstract: The present disclosure provides an under-screen fingerprint identification apparatus and an electronic device, where the under-screen fingerprint identification apparatus, applied to an electronic device with a liquid crystal display screen and a middle frame, includes a detection light source and a fingerprint identification module. The detection light source is located below an edge area of a protective cover plate of the liquid crystal display screen, the middle frame is provided with an accommodation space at a position opposite to the detection light source, and the detection light source is at least partially located in the accommodation space and is attached to the middle frame, so as to reduce an increased width of a chin area of the electronic device and contribute to realization of a full screen of the electronic device.
    Type: Application
    Filed: December 17, 2020
    Publication date: April 29, 2021
    Applicant: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Xiaogang QING, Wenzheng LIU, Shunzhan LI
  • Publication number: 20200401782
    Abstract: Provided is a fingerprint identification apparatus which includes: a micro lens array; at least one light shielding layer; a pixel unit array; and an array of filter unit groups, where each filter unit group includes at least two filter units which transmit light signals in at least two colors respectively, where the pixel unit array includes a pixel unit group corresponding to the filter unit group, at least two pixel units in the pixel unit group receive a first light signal through the at least two filter units respectively, and a pixel unit except the at least two pixel units receives a second light signal through a transparent region between the at least two filter units, or a pixel unit between pixel unit groups receives the second light signal through a transparent region between the filter unit groups. The apparatus can improve the security of identification without affecting identification effect.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 24, 2020
    Inventors: Xiang CHENG, Jianxiang ZHANG, Wei ZHANG, Shunzhan LI
  • Publication number: 20200234024
    Abstract: The present disclosure provides an under-screen fingerprint recognition system, an LCD fingerprint recognition apparatus and an electronic device. The under-screen fingerprint recognition system includes a fingerprint light source, a reflection unit and a fingerprint sensor; the reflection unit is disposed between the liquid crystal panel and the backlight module in the display module; a reflection surface of the reflection unit is toward the liquid crystal panel to receive the light that is emitted by the fingerprint light source. The present disclosure can realize under-screen fingerprint recognition for an LCD.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 23, 2020
    Inventors: XIAOGANG QING, Yi He, Shunzhan Li
  • Publication number: 20200193138
    Abstract: Provided are a fingerprint identification device, a fingerprint identification method and an electronic device, which could improve security of fingerprint identification. The fingerprint identification device includes an optical fingerprint sensor including a plurality of pixel units; at least two filter units disposed above at least two pixel units of the plurality of pixel units, where each filter unit corresponds to one pixel unit, and the at least two filter units comprise filter units in at least two colors.
    Type: Application
    Filed: May 18, 2019
    Publication date: June 18, 2020
    Inventors: Shunzhan LI, Xiang CHENG, Qin GU, Yonghui WU
  • Publication number: 20200134283
    Abstract: Provided is a liquid crystal display (LCD) fingerprint recognition system, including an under-screen optical fingerprint recognition apparatus disposed under an LCD screen; the fingerprint recognition apparatus includes a fingerprint recognition module, disposed under a backlight module of the LCD screen and configured to receive fingerprint detection light formed by irradiating a finger above a fingerprint detection area by probe light emitted from a detection light source and carries fingerprint information; wavelength of the fingerprint detection light is different from a wavelength of backlight provided by the backlight module for displaying a picture, and at least part area of the backlight module is a light transmission area capable of transmitting the fingerprint detection light, so that the fingerprint detection light passes through the backlight module and is transmitted to the fingerprint recognition module under the backlight module.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Inventors: XIAOGANG QING, Shunzhan Li
  • Publication number: 20200117879
    Abstract: A fingerprint detection apparatus and a terminal device having a fingerprint identification function are disclosed. The terminal device includes: a glass cover, configured to provide a touch interface; a liquid crystal panel, located below the glass cover; a backlight module, located below the liquid crystal panel; and a light-emitting component, located below the glass cover, wherein the light-emitting component and the liquid crystal panel are staggered from each other, and the light-emitting component is configured to emit a light to illuminate the finger to generate a returned light, wherein the returned light is used for the terminal device to perform the fingerprint identification on the finger.
    Type: Application
    Filed: December 14, 2019
    Publication date: April 16, 2020
    Inventors: Shunzhan LI, Wei ZHANG, Xiaogang QING
  • Patent number: 10410031
    Abstract: For purposes of fingerprint identification, a fingerprint acquisition apparatus and method, a terminal device, and a method for controlling a screen to be on or off, are provided. The fingerprint acquisition apparatus includes: a fingerprint sensor, an optical sensor and a signal processing unit. The fingerprint sensor and the optical sensor connect to the signal processing unit, respectively. The optical sensor is configured to emit an optical signal and receive a reflected signal formed after reflection of the optical signal via a human finger. The signal processing unit is configured to activate the fingerprint sensor according to the reflected signal; and the fingerprint sensor is configured to acquire fingerprints of the human finger after being activated.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 10, 2019
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Wei Zhang, Shunzhan Li
  • Patent number: 10354118
    Abstract: Embodiments of the present disclosure provide a fingerprint recognition method and a fingerprint recognition apparatus, where the method includes: collecting a plurality of optical signals of a finger to be detected; and judging whether the finger to be detected is a living body according to the plurality of optical signals of the finger to be detected. The method provided in the embodiments of the present disclosure may improve the security of the fingerprint recognition technology, and may effectively avoid the problem that fingerprint recognition is cracked using an artificial body fingerprint.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: July 16, 2019
    Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Shunzhan Li, Wangwang Yang, Wei Zhang, Yudong Wang
  • Patent number: 10162996
    Abstract: Devices and methods are provided for recovering from latchup state in fingerprint sensor devices. For example, a disclosed device can be operated to perform operations that include, receiving, at a microcontroller of the fingerprint sensor device, raw sensor data from a sensor array in communication with the microcontroller, comparing the received raw sensor data against a predetermined threshold, and, based at least partly on the comparing, resetting power supplied to the fingerprint sensor device to recover from a latchup state.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: December 25, 2018
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventors: Hua Zhong, Jinchun Ye, Shunzhan Li, Jinhui Lin
  • Publication number: 20180082101
    Abstract: For purposes of fingerprint identification, a fingerprint acquisition apparatus and method, a terminal device, and a method for controlling a screen to be on or off, are provided. The fingerprint acquisition apparatus includes: a fingerprint sensor, an optical sensor and a signal processing unit. The fingerprint sensor and the optical sensor connect to the signal processing unit, respectively. The optical sensor is configured to emit an optical signal and receive a reflected signal formed after reflection of the optical signal via a human finger. The signal processing unit is configured to activate the fingerprint sensor according to the reflected signal; and the fingerprint sensor is configured to acquire fingerprints of the human finger after being activated.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 22, 2018
    Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
    Inventors: Wei ZHANG, Shunzhan LI
  • Publication number: 20170311815
    Abstract: The present disclosure discloses a heart rate detection method and a heart rate detection apparatus, the method includes: acquiring a heart rate signal; extracting a heart rate characteristic from a waveform corresponding to the heart rate signal; judging whether the heart rate characteristic satisfies a predetermined condition; and outputting a corresponding heart rate value according to the heart rate signal when it is judged that the heart rate characteristic satisfies the predetermined condition. In the technical solution of this embodiment, the feature based on the waveform of heart rate signal may judge whether detection of the heart rate is in a normal condition, which is favorable to rapidly calculating a heart rate value, and capable of preventing an error for the reason that a correct heart rate value is obtained by calculating the heart rate value based on the heart rate signal in the normal condition.
    Type: Application
    Filed: July 20, 2017
    Publication date: November 2, 2017
    Inventors: Yi YU, Wangwang YANG, Shunzhan LI
  • Publication number: 20170300738
    Abstract: Embodiments of the present disclosure provide a fingerprint recognition method and a fingerprint recognition apparatus, where the method includes: collecting a plurality of optical signals of a finger to be detected; and judging whether the finger to be detected is a living body according to the plurality of optical signals of the finger to be detected. The method provided in the embodiments of the present disclosure may improve the security of the fingerprint recognition technology, and may effectively avoid the problem that fingerprint recognition is cracked using an artificial body fingerprint.
    Type: Application
    Filed: July 5, 2017
    Publication date: October 19, 2017
    Inventors: Shunzhan LI, Wangwang YANG, Wei ZHANG, Yudong WANG
  • Publication number: 20160140377
    Abstract: Devices and methods are provided for recovering from latchup state in fingerprint sensor devices. For example, a disclosed device can be operated to perform operations that include, receiving, at a microcontroller of the fingerprint sensor device, raw sensor data from a sensor array in communication with the microcontroller, comparing the received raw sensor data against a predetermined threshold, and, based at least partly on the comparing, resetting power supplied to the fingerprint sensor device to recover from a latchup state.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Inventors: Hua Zhong, Jinchun Ye, Shunzhan Li, Jinhui Lin