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Patent Agency Ranking
公开(公告)号：US20250027600A1
公开(公告)日：2025-01-23
申请号：US18353642
申请日：2023-07-17
Applicant: Google LLC
Inventor： Guillermo Fabian Díaz Lankenau , Antonio Yamil Layon Halun , Kevin Stuart Tong , Kevin John Zulonas , Andrew Block , Andrew Huibers , John D. Perreault , Punit Narendra Govenji
Abstract: A frame assembly for a three-dimensional (3D) communication system provides for mounting of a plurality of image sensors adjacent to, and physically separate from, peripheral boundaries of a display device of the 3D communication system, while also providing for mounting of the display device to an external support structure. The frame assembly includes a support frame that provides for mounting of the plurality of image sensors at the periphery of the display device, and a mounting structure that provides for mounting of the display device, using shared mounting points that do not rely on a mechanical coupling between the display device and the support frame. In this manner, the frame assembly can maintain a relative position of the plurality of image sensors, even in the event of physical changes in configuration of the display device.
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公开(公告)号：US20240340399A1
公开(公告)日：2024-10-10
申请号：US18297521
申请日：2023-04-07
Applicant: Google LLC
IPC: H04N13/254 , G01B11/16 , H04N13/243 , H04N13/246
CPC classification number: H04N13/254 , G01B11/16 , H04N13/243 , H04N13/246
Abstract: Systems and methods are disclosed in which low-cost sensors are mounted onto a 3D light field display to measure variations in strain or temperature. The sensors can be mounted to a common backplate with the cameras to correlate camera motion in response to thermally-induced deformation of the display. Once a correlation between the sensor measurements and camera motion is pre-established, for example, by using machine learning, the resulting system model can be used so that real time measurements of the display can instantly predict changes in camera positions at any given time. Updated camera positions can then be used when combining images to produce a stereoscopic effect.
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公开(公告)号：US20240364857A1
公开(公告)日：2024-10-31
申请号：US18647467
申请日：2024-04-26
Applicant: GOOGLE LLC
IPC: H04N13/239 , G02F1/13357 , H04N13/305 , H04N23/90
CPC classification number: H04N13/239 , G02F1/133603 , H04N23/90 , H04N13/305
Abstract: Systems and methods are described for reducing thermal distortion in an optical display for use in a 3D stereoscopic video conferencing system. The thermal distortion can arise from operation of an array of LEDs in a back light unit of the display. Forming cut-outs in the display can interrupt the flow of heat to maintain geometric stability of precision cameras mounted to the display edges while also allowing sufficient heat dissipation paths for the LEDs. Structural reinforcement bars can be added, and an opaque film can be used to block light loss from the LEDs.
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公开(公告)号：US20240354990A1
公开(公告)日：2024-10-24
申请号：US18305677
申请日：2023-04-24
Applicant: Google LLC
CPC classification number: G06T7/80 , H04N17/002 , H04N23/90 , G06T2207/30204 , G06T2207/30244
Abstract: A telepresence system may include a display configured to present three-dimensional images. The 3D images may be rendered from multiple images captured by multiple cameras that image an area from different viewpoints. Misalignment of any of the multiple cameras may negatively affect the rendering. Accordingly, the telepresence system may calibrate the cameras to compensate for any misalignment as part of the rending. This calibration may include capturing an image, or images, of a calibration target to determine the relative positions of the cameras. The disclosed telepresence system can perform this calibration online and using targets in fixed locations that are not easily noticeable to a user
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公开(公告)号：US20240365485A1
公开(公告)日：2024-10-31
申请号：US18647729
申请日：2024-04-26
Applicant: GOOGLE LLC
CPC classification number: H05K5/0217 , F16M13/02 , G02B30/10 , H04N23/90
Abstract: Systems and methods are described for reducing thermal distortion in an optical display for use in a 3D stereoscopic video conferencing system. The thermal distortion can arise from operation of an array of LEDs in a back light unit of the display. Elements with compliance are included in a load path between a structure used for precision camera array mounting and its fixture points to reduce sensitivity to thermal cycles. The compliant elements, or flexures, can allow for linear expansion and prevent buckling of the backplate during thermal cycling, thus reducing motion of the cameras.
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