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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
IPC分类号： G06K9/00
摘要： 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
摘要： 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
IPC分类号： G02B5/08 , G01S7/4865 , G01S17/00 , G02B3/00
摘要： 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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公开(公告)号：US11030434B2
公开(公告)日：2021-06-08
申请号：US16595343
申请日：2019-10-07
IPC分类号： G06K9/00 , G02F1/1333
摘要： 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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5.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
摘要： 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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6.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
摘要： 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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7.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
IPC分类号： G06K9/00
摘要： 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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8.发明申请公开(公告)号：US20200234024A1
公开(公告)日：2020-07-23
申请号：US16728485
申请日：2019-12-27
发明人： XIAOGANG QING , Yi He , Shunzhan Li
IPC分类号： G06K9/00 , G02F1/1333 , G02F1/133 , F21V8/00
摘要： 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.
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公开(公告)号：US10469933B2
公开(公告)日：2019-11-05
申请号：US16024093
申请日：2018-06-29
摘要： An apparatus may include a first headphone. The first headphone may include a first audio transducer and a second audio transducer. The first audio transducer may generate sound according to a first spectral mask and the second audio transducer may generate sound according to a second spectral mask. The first spectral mask and the second spectral mask may be adjustable at the first headphone. The first headphone may include a digital interface. The apparatus may further include a headphone controller to control the first headphone. The headphone controller may receive an audio signal from a portable electronic device and/or the headphone controller may transmit digital information representing speech, sound, or music to the first headphone. In response to a user input, the headphone controller may cause an adjustment to one or more of the first spectral mask or the second spectral mask.
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公开(公告)号：US10437391B2
公开(公告)日：2019-10-08
申请号：US15807561
申请日：2017-11-08
IPC分类号： G06F3/042 , G06F3/0354
摘要： Touch sensing based on optical sensing as disclosed herein can be implemented by using an optical stylus or pointer that emits probe light for optical sensing, and spatially distributed optical sensors at different spatial locations for sensing. The measurements from the different optical sensors can be processed to determine the position of the light from the optical stylus at the screen. Optical sensing of a position on a two-dimensional surface and a position in a three-dimensional space can be achieved for various optical touch sensing applications. In one implementation, an apparatus can include a screen or display, an optical stylus or optical pointer, and two or more optical angle sensors which determine, respectively, a first angle between the first optical angle sensor and a position of light at the screen and a second angle between the second optical angle sensor and the position of light at the screen.
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