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公开(公告)号：US11831858B2
公开(公告)日：2023-11-28
申请号：US17314047
申请日：2021-05-07
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
IPC: H04N13/271 , H04N13/236 , H04N13/254 , H04N13/211 , G06T7/571 , H04N13/207 , G02B5/00 , G02B5/20 , H04M1/02 , H04N13/00
CPC classification number: H04N13/271 , G02B5/003 , G02B5/201 , G06T7/571 , H04N13/207 , H04N13/211 , H04N13/236 , H04N13/254 , G06T2207/10028 , H04M1/0264 , H04N2013/0081
Abstract: Techniques are described for passive three-dimensional image sensing based on referential image blurring. For example, a filter mask is integrated with a lens assembly to provide one or more normal imaging bandpass (NIB) regions and one or more reference imaging bandpass (RIB) regions, the regions being optically distinguishable and corresponding to different focal lengths and/or different focal paths. As light rays from a scene object pass through the different regions of the filter mask, a sensor can detect first and second images responsive to those light rays focused through the NIB region and the RIB region, respectively (according to their respective focal lengths and/or respective focal paths). An amount of blurring between the images can be measured and correlated to an object distance for the scene object. Some embodiments project additional reference illumination to enhance blurring detection in the form of reference illumination flooding and/or spotted illumination.
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公开(公告)号：US11830284B2
公开(公告)日：2023-11-28
申请号：US17352375
申请日：2021-06-21
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
CPC classification number: G06V40/166 , G06F21/32 , G06V20/64 , G06V40/165 , G06V40/172 , G06V40/40 , G06F2221/2117
Abstract: Techniques are described for passive three-dimensional (3D) object authentication based on image sizing, such as for biometric facial recognition. For example, during a registration routine, an imaging system captures images of a registering user's face at multiple distances. The images can be processed to extract registration dimensions, including individual deterministic structural dimensions, dimensional relationships that are static over changes in imaging distance, and dimensional relationships that changes predictably over changes in imaging distance. During an authentication routine, the imaging system again captures authentication images of an authenticating user's face (purportedly the previously registered user) at some authentication imaging distance and processes the images to extract authentication dimensions. Expected and actual dimensional quantities are computed from the authentication and registration dimensions and are compared to determine whether the authenticating user's face appears to be authorized as previously registered and/or is a spoof.
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公开(公告)号：US11216647B2
公开(公告)日：2022-01-04
申请号：US16734259
申请日：2020-01-03
Applicant: Shenzhen Goodix Technology Co., Ltd.
IPC: G06K9/00
Abstract: Technology for devices, systems, techniques and processes to provide anti-spoofing features for facial identification with enhanced security against facial spoofing devices or technique by using optical sensing and other sensing mechanisms to explore certain unique characteristics of a face of a live person that lack in most spoofing devices made of artificial materials or are difficult to replicate, including optical sensing based on unique optical absorption or reflection features of biological parts of a person's face.
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公开(公告)号：US11210491B2
公开(公告)日：2021-12-28
申请号：US16427269
申请日：2019-05-30
Applicant: Shenzhen Goodix Technology Co., Ltd.
Abstract: An optical fingerprint sensing module is configured to be disposed under a display screen that includes an array of LEDs. The optical fingerprint sensing module includes a light coupler disposed under the display screen, an array of light collimators coupled to the light coupler, a photodetector array, electronic circuitry coupled to the photodetector array, and a processor. The processor is configured to cause the electronic circuitry to capture a first frame while a first plurality of LEDs in the display screen are turned on and a second plurality of LEDs are turned off, and capture a second frame while the first plurality of LEDs are turned off and the second plurality of LEDs are turned on. The processor is further configured to construct a first fingerprint image and a second fingerprint image by combining the first frame and the second frame.
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公开(公告)号：US20210191009A1
公开(公告)日：2021-06-24
申请号：US16721941
申请日：2019-12-20
Applicant: Shenzhen Goodix Technology Co., Ltd.
IPC: G02B5/08 , G01S7/4865 , G01S17/00 , G02B3/00
Abstract: Techniques are described for time-of-fly sensors with hybrid refractive gradient-index optics. Some embodiments are for integration into portable electronic devices with cameras, such as smart phones. For example, a time-of-fly (TOF) imaging subsystem can receive optical information along an optical path at an imaging plane. A hybrid lens can be coupled with the TOF imaging subsystem and disposed in the optical path so that the imaging plane is substantially at a focal plane of the hybrid lens. The hybrid lens can include a less-than-quarter-pitch gradient index (GRIN) lens portion, and a refractive lens portion with a convex optical interface. The portions of the hybrid lens, together, produce a combined focal length that defines the focal plane. The hybrid lens is designed so that the combined focal length is less than a quarter-pitch focal length of the GRIN lens portion and has less spherical aberration than either lens portion.
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Patent Agency Ranking
46.发明授权公开(公告)号：US11030434B2
公开(公告)日：2021-06-08
申请号：US16595343
申请日：2019-10-07
Applicant: Shenzhen Goodix Technology Co., Ltd.
IPC: G06K9/00 , G02F1/1333
Abstract: Devices are provided for providing on-screen optical sensing of fingerprints by using an under-screen optical sensor module for improved optical fingerprint sensing including using an optical sensor module to include (1) an optical sensor array of optical detectors to detect light that carries a fingerprint pattern, (2) a pinhole layer structured to include an array of pinholes and located above the optical sensor array to spatially filter incident light to be detected by the optical detectors; and (3) a lens layer structured to include an array of lenses formed above the pinhole layer where the lenses are spatially separated and positioned so that one lens is placed above one corresponding pinhole in the array of pinholes and different lenses in the lens array are placed above different pinholes in the array of pinholes, respectively, to allow the optical sensor array to receive and detector the incident light.
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47.发明授权公开(公告)号：US11017068B2
公开(公告)日：2021-05-25
申请号：US16547659
申请日：2019-08-22
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Abstract: Devices and optical sensor modules are provided for provide on-screen optical sensing of fingerprints by using an under-screen optical sensor module that captures and detects returned light that is emitted by the display screen for displaying images and that is reflected back by the top surface of the screen assembly. Optical collimators are provided in the under-screen optical sensor module to enhance the optical imaging performance. Techniques for reducing the environmental light in the optical sensing are provided.
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公开(公告)号：US10990216B2
公开(公告)日：2021-04-27
申请号：US16553167
申请日：2019-08-27
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Bo Pi , Haolei Wang , Xing Huang , Xiaohong Yang , Yejia Feng
IPC: G06F3/041 , G06F3/0488 , G06F3/044
Abstract: A method for adjusting a touch screen, a touch chip, and an electronic terminal are provided. The method for adjusting a touch screen includes: receiving a characteristic signal corresponding to a usage scenario type of a terminal device that includes the touch screen; acquiring a touch screen adjustment parameter corresponding to the characteristic signal, where the touch screen adjustment parameter includes: at least one of a chip simulation parameter for controlling a touch chip of the touch screen and a firmware algorithm parameter; and adjusting an operating state of the touch screen based on the touch screen adjustment parameter. Through the embodiments of the present disclosure, a user can get excellent experience when using the touch screen in various usage scenarios.
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49.发明申请公开(公告)号：US20200327302A1
公开(公告)日：2020-10-15
申请号：US16860000
申请日：2020-04-27
Applicant: Shenzhen Goodix Technology Co., Ltd.
Abstract: An electronic device includes a display screen, which includes a cover glass, a transparent layer disposed under the cover glass disposed under the cover glass, and a display illumination layer disposed under the transparent layer. The electronic device further includes an optical ID sensing module disposed under the display illumination layer and configured to form an image of a fingerprint pattern or a palmprint pattern of a hand of a user. The electronic device further includes a light source disposed at an edge side of the transparent layer, and is configured to emit a light beam to be coupled into the transparent layer through the edge side. A portion of the light beam may be transmitted through the cover glass to illuminate the hand for imaging of fingerprint pattern or the palmprint pattern by the optical ID sensing module.
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50.发明申请公开(公告)号：US20200279090A1
公开(公告)日：2020-09-03
申请号：US16595343
申请日：2019-10-07
Applicant: Shenzhen Goodix Technology Co., Ltd.
IPC: G06K9/00
Abstract: Devices are provided for providing on-screen optical sensing of fingerprints by using an under-screen optical sensor module for improved optical fingerprint sensing including using an optical sensor module to include (1) an optical sensor array of optical detectors to detect light that carries a fingerprint pattern, (2) a pinhole layer structured to include an array of pinholes and located above the optical sensor array to spatially filter incident light to be detected by the optical detectors; and (3) a lens layer structured to include an array of lenses formed above the pinhole layer where the lenses are spatially separated and positioned so that one lens is placed above one corresponding pinhole in the array of pinholes and different lenses in the lens array are placed above different pinholes in the array of pinholes, respectively, to allow the optical sensor array to receive and detector the incident light.
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