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公开(公告)号：US20220414364A1
公开(公告)日：2022-12-29
申请号：US17352375
申请日：2021-06-21
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
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：US11320693B2
公开(公告)日：2022-05-03
申请号：US16556251
申请日：2019-08-30
Applicant: Shenzhen Goodix Technology Co., Ltd.
IPC: G06F21/32 , G02F1/13357 , G06F3/041 , G02F1/1335
Abstract: Improved under-display illumination is provided for display modules integrated in electronic devices. For example, a display module can include a number of display micro-structures, such as pixels and electrodes. Much of the illumination energy from conventional under-display illumination (e.g., for backlighting) can tend to be blocked by the micro-structures and can also tend to damage the micro-structures. Novel arrangements of optical structures are provided herein to output under-display illumination energy and to direct the energy in a manner that passes completely or mostly through gaps between the display micro-structures. Some implementations provide additional features, such as light conditioning to facilitate transmission of light energy through a dark coating layer, and/or use of multiple optical structures to provide illumination energy with different optical characteristics.
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公开(公告)号：US11237525B2
公开(公告)日：2022-02-01
申请号：US14793576
申请日：2015-07-07
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Inventor： Bo Pi
Abstract: A smart watch described in this document includes hardware and software necessary to obtain motion and sensor data from a user wearing the smart watch. The described smart watch can continuously collect sensor data from the user and combine the sensor data from multiple sensors to enhance the accuracy of the sensor data analysis and provide relevant feedback information to the user. In addition, the described smart watch is capable of pairing with an external personal portable device, such as a smartphone or tablet to correlate the collected sensor data with activities performed by the user on the paired device. The smart device can also transmit data to a cloud server to collect sensor data and correlation analysis data for further analysis and provide statistical analysis of the collected sensor data and correlation analysis data.
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公开(公告)号：US20220021862A1
公开(公告)日：2022-01-20
申请号：US17369915
申请日：2021-07-07
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
IPC: H04N13/15 , H04N13/128 , H04N13/254
Abstract: Techniques are described for passive three-dimensional (3D) image sensing based on chromatic differentiation. For example, an object can be imaged by using a photodetector array to detect light reflected off of the object and focused through a lens onto the array. Light components of different wavelengths tends to be focused through the lens to different focal lengths, which can tend to impact the brightness of each wavelength as detected. For example, if the detector array is closer to a shorter-wavelength focal plane, a white spot will tend to be detected with a higher magnitude of blue light components than of red light components. Ratios of brightness magnitudes for different wavelengths vary in a manner that strongly correlates to object distance from the lens. Embodiments exploit this correlation to passively detect object distance. Some embodiments further provide various types of distance and/or chromatic calibration to further facilitate such detection.
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公开(公告)号：US11070790B1
公开(公告)日：2021-07-20
申请号：US16739149
申请日：2020-01-10
Applicant: Shenzhen Goodix Technology Co., Ltd.
IPC: H04N13/122 , H04N13/261 , H04N13/327 , H04N13/00
Abstract: Techniques are described for three-dimensional (3D) image sensing based on passive optical techniques and dynamic calibration. For example, light reflected from one or more objects in a scene is received via a lens of a novel 3D imaging system to forms an image of the object(s) on an image sensor through a spatial filter. A distribution of mask elements are associated with corresponding signal pixel sets of the image sensor, and reference elements of the spatial filter are associated with corresponding reference pixel sets of the image sensor; such that portions of the image tend to be shadowed by the mask elements at the signal pixel sets, but not at the reference pixel sets. Object distances for the one or more objects in the scene can be computed as a function of signal brightness detected by the signal pixel sets and reference brightness detected by the reference pixel sets.
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Patent Agency Ranking
公开(公告)号：US11048903B2
公开(公告)日：2021-06-29
申请号：US16529968
申请日：2019-08-02
Applicant: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
IPC: G06K9/00 , A61B5/1172 , G06F3/041 , G06F3/042 , G06F3/044 , G06F21/32 , G06F21/83 , A61B5/145 , A61B5/00 , H04L29/06
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 an LCD display screen for displaying images and that is reflected back by the top surface of the screen assembly.
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公开(公告)号：US11010588B2
公开(公告)日：2021-05-18
申请号：US16558309
申请日：2019-09-02
Applicant: Shenzhen Goodix Technology Co., Ltd.
Abstract: Optical sensing is provided with a large sensing area in a thin package. For example, embodiments can operate in context of an under-display optical fingerprint sensor integrated into an electronic device, such as a smartphone. Responsive to reflected probe light passing through a display module, a reflective structure is configured to redirect the reflected probe light onto a refractive structure, and the refractive structure is configured to converge the reflected probe light into an input aperture of an optical sensor for detection. Some embodiments operate in context of an enhancement panel having micro-prism structures that tend to blur the reflected probe light. In such context, embodiments are configured for off-axis detection to prefer light passing through only certain micro-prism faces, thereby mitigating blurring.
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68.发明申请公开(公告)号：US20210117522A1
公开(公告)日：2021-04-22
申请号：US16677696
申请日：2019-11-08
Applicant: Shenzhen Goodix Technology Co., Ltd.
Abstract: Optical sensing is provided to detect two-dimensional spoof objects using bright-dark reversal imaging. For example, embodiments can operate in context of an under-display optical fingerprint sensor integrated into an electronic device, such as a smartphone. An optical scanning system is configured so that direct illumination incident on a defined sensing region is redirected, by internal specular reflection off of a contact surface, onto an optical sensor in a bright-dark pattern corresponding to the pattern of contact an object and the contact surface. Masking of direct illumination in a certain region of the contact surface inhibits specular reflection in that region, such that optical information is directed to the optical sensor from that region only by non-specular reflection. Three-dimensional (real) and two-dimensional (spoof) objects tend to manifest different optical responses to the lack of specular reflection in the masked region, which can be exploited to detect such spoofs.
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公开(公告)号：US10963671B2
公开(公告)日：2021-03-30
申请号：US15846134
申请日：2017-12-18
Applicant: Shenzhen Goodix Technology Co., Ltd.
Abstract: In one aspect, a fingerprint sensor device includes a touch panel with an integrated touch sensor module. The integrated touch sensor module includes sensing circuitry to generate a sensor signal responsive to detecting a contact input associated with a fingerprint. The sensing circuitry includes a fingerprint sensor to detect the contact input and generate a signal indicative of an image of the fingerprint, and a biometric sensor to generate a signal indicative of a biometric marker different form the fingerprint. The generated sensor signal includes the signal indicative of the image of the fingerprint and the signal indicative of the biometric marker different from the fingerprint. The sensing circuitry includes processing circuitry communicatively coupled to the sensing circuitry to process the generated sensor signal to determine whether the contact input associated with the fingerprint belongs to a live finger. In another aspect, a device includes a touch screen and an optical sensor module located below the touch screen to provide optical fingerprint sensing.
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公开(公告)号：US10904378B2
公开(公告)日：2021-01-26
申请号：US16746984
申请日：2020-01-20
Applicant: Shenzhen Goodix Technology Co., Ltd.
Abstract: Techniques are described for implementing an immediate-mode camera for integration into portable personal electronic device (PPED) environments. Embodiments of the IMC can include an integrated digital camera that can be triggered directly by one or more user interface components, without involving waking up the application processor, waking up display components, waking up digital camera components, and/or starting up camera-related applications. For example, if a user's smart phone is locked, and the user desired to capture a photo, the user can interact with particular UI components in a particular manner, thereby directly triggering capture of image data by the IMC substantially without delay. Implementations of the IMC can involve a low-power, always-on digital camera that is directly controllable by one or more always-on user interface components. The IMC components can be in communication with an always-on region of the application processor via a fast hardware interface.
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