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    Systems, devices, and methods for driving projectors
    1.
    发明授权
    Systems, devices, and methods for driving projectors 有权

    公开(公告)号：US11558589B2

    公开(公告)日：2023-01-17

    申请号：US16906314

    申请日：2020-06-19

    Applicant: GOOGLE LLC

    Inventor： Stuart James Myron Nicholson ,  Isaac James Deroche ,  Jerrold Richard Randell

    IPC: H04N9/31

    Abstract: Systems, devices, and methods for driving projectors are described. The actual area projected over by a laser projector for a given pixel may not exactly match a desired projection area for the pixel, especially at edge regions of an image. In the present systems, devices, and methods, projection data is provided for at least one image to be projected by a laser projector. The projection data can include sets of alternative data sections at edge regions of the at least one image, effectively increasing resolution for the edge regions of the image. Depending on a projection pattern being used by a laser projector at a given time, select alternative data sections can be projected which closely match the actual area covered by the projection pattern, improving image quality.

    ACTIVE ACOUSTIC RIPPLE CANCELLATION FOR MEMS MIRRORS
    2.
    发明公开
    ACTIVE ACOUSTIC RIPPLE CANCELLATION FOR MEMS MIRRORS 审中-公开

    公开(公告)号：US20230296879A1

    公开(公告)日：2023-09-21

    申请号：US17694845

    申请日：2022-03-15

    Applicant: GOOGLE LLC

    Inventor： Sangtak Park ,  Isaac James Deroche

    IPC: G02B26/08 ,  G10K11/178

    CPC classification number: G02B26/0841 ,  G10K11/17823 ,  G10K11/17873 ,  H04N9/3194

    Abstract: Systems, devices, and methods are described for mitigating or eliminating distortion patterns (such as those caused by one or more high-volume audio sources) in a display system such as a laser projection system. Frequency components of an incoming sound that correspond to one or more resonant frequencies of an optical reflector of the display system are determined to exceed a defined volume threshold. Responsive to that determination, a magnitude and phase of one or more harmonic motions of the optical reflector are measured. Sound waves are generated to destructively interfere with at least one frequency component corresponding to the resonant frequencies of the optical reflector.

    Active acoustic ripple cancellation for MEMS mirrors
    4.
    发明授权
    Active acoustic ripple cancellation for MEMS mirrors 有权

    公开(公告)号：US12223941B2

    公开(公告)日：2025-02-11

    申请号：US17694845

    申请日：2022-03-15

    Applicant: GOOGLE LLC

    Inventor： Sangtak Park ,  Isaac James Deroche

    IPC: G10K11/178 ,  G01H9/00 ,  G01H13/00 ,  G02B26/08 ,  G02B27/01 ,  H04N9/31 ,  H04R1/28 ,  H04R3/02 ,  H04R3/04

    Abstract: Systems, devices, and methods are described for mitigating or eliminating distortion patterns (such as those caused by one or more high-volume audio sources) in a display system such as a laser projection system. Frequency components of an incoming sound that correspond to one or more resonant frequencies of an optical reflector of the display system are determined to exceed a defined volume threshold. Responsive to that determination, a magnitude and phase of one or more harmonic motions of the optical reflector are measured. Sound waves are generated to destructively interfere with at least one frequency component corresponding to the resonant frequencies of the optical reflector.

    SYSTEMS, DEVICES, AND METHODS FOR ASSEMBLING IMAGE DATA FOR DISPLAY
    6.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR ASSEMBLING IMAGE DATA FOR DISPLAY 有权

    公开(公告)号：US20220270571A1

    公开(公告)日：2022-08-25

    申请号：US17344394

    申请日：2021-06-10

    Applicant: GOOGLE LLC

    Inventor： Stuart James Myron Nicholson ,  Isaac James Deroche ,  Jerrold Richard Randell ,  Lai Pong Wong ,  Chris Brown

    IPC: G09G5/393

    Abstract: Systems, devices, and methods for generating, processing, assembling, and/or formatting data for display are described. Example display controllers are described in which image data is stored in a framebuffer, and a compositor selectively retrieves portions of the image data. At least one P-operator produces lines of intermediate P-operated data by performing at least one intra-line operation on the image data retrieved by the compositor, such as repeating or reordering pixels of the image data. A Q-operator produces a stream of pixel data by performing inter-line operations on the intermediate P-operated data, such as interpolating between lines of the P-operated data. A display is driven according to the stream of pixel data.

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