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公开(公告)号：US11157113B2
公开(公告)日：2021-10-26
申请号：US16383036
申请日：2019-04-12
Applicant: Apple Inc.
Inventor： Mark T. Winkler , Mehmet Mutlu , Omid Momtahan , Tong Chen , Wenrui Cai , Chau H. Nguyen , Giovanni Gozzini , Michael K. McCord , Orit A. Shamir , Prashanth S. Holenarsipur
Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
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Patent Agency Ranking
公开(公告)号：US20250067595A1
公开(公告)日：2025-02-27
申请号：US18613515
申请日：2024-03-22
Applicant: Apple Inc.
Inventor： Anand K. Chamakura , Stephen N. Sweet , Ali Motamed , Dong Zheng , Jianjun Guo , Chau H. Nguyen
Abstract: An electronic device may have a sensor to measure ambient flicker. The sensor may be a sigma-delta converter. The flicker may be calculated based on the voltage output of the sigma-delta converter and the number of times the sigma-delta converter is triggered during a predetermined period, thereby reducing the voltage output. In particular, a fast Fourier transform (FFT) may be used on these values to determine the flicker. If desired, filtering and/or non-uniform sampling may be incorporated to avoid aliasing. Additionally or alternatively, a Lomb-Scargle spectral analysis may be used to prevent the attenuation of the measured flicker signals. As an alternative to using a sigma-delta converter to determine ambient flicker, a folding capacitive transimpedance amplifier (C-TIA) circuit or a circuit with an analog to digital converter and digital filter may be used to measure the ambient flicker.
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公开(公告)号：US11599224B2
公开(公告)日：2023-03-07
申请号：US17482265
申请日：2021-09-22
Applicant: Apple Inc.
Inventor： Mark T. Winkler , Mehmet Mutlu , Omid Momtahan , Tong Chen , Wenrui Cai , Chau H. Nguyen , Giovanni Gozzini , Michael K. McCord , Orit A. Shamir , Prashanth S. Holenarsipur
Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
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公开(公告)号：US20190317639A1
公开(公告)日：2019-10-17
申请号：US16383036
申请日：2019-04-12
Applicant: Apple Inc.
Inventor： Mark T. Winkler , Mehmet Mutlu , Omid Momtahan , Tong Chen , Wenrui Cai , Chau H. Nguyen , Giovanni Gozzini , Michael K. McCord , Orit A. Shamir , Prashanth S. Holenarsipur
Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
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公开(公告)号：US20230288186A1
公开(公告)日：2023-09-14
申请号：US18114143
申请日：2023-02-24
Applicant: Apple Inc.
Inventor： Mark T. Winkler , Mehmet Mutlu , Omid Momtahan , Tong Chen , Wenrui Cai , Chau H. Nguyen , Giovanni Gozzini , Michael K. McCord , Orit A. Shamir , Prashanth S. Holenarsipur
CPC classification number: G01B9/02092 , G06F3/0421 , G01S17/50 , G01P3/366 , H01S5/18386 , G01B11/161
Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
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公开(公告)号：US20220011902A1
公开(公告)日：2022-01-13
申请号：US17482265
申请日：2021-09-22
Applicant: Apple Inc.
Inventor： Mark T. Winkler , Mehmet Mutlu , Omid Momtahan , Tong Chen , Wenrui Cai , Chau H. Nguyen , Giovanni Gozzini , Michael K. McCord , Orit A. Shamir , Prashanth S. Holenarsipur
Abstract: Disclosed herein are electronic devices having touch input surfaces. A user's touch input or press on the touch input surface is detected using a set of lasers, such as vertical-cavity surface-emitting lasers (VCSELs) that emit beams of light toward the touch input surface. The user's touch causes changes in the self-mixing interference within the VCSEL of the emitted light with reflected light, such as from the touch input surface. Deflection and movement (e.g., drag motion) of the user's touch is determined from detected changes in the VCSELs' operation due to the self-mixing interference.
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